Instruction Manual

ManualsBrandsRockwell Automation ManualsEquipment1794-IF4I, -OF4I, IF2XOF2I, -IF4IXT, -IF4ICFXT, -OF4IXT, IF2XOF2IXT FLEX I/O Isolated Analog Modules

FLEX I/O Isolated

Analog Modules

1794-IF4I, -OF4I, IF2XOF2I, -IF4IXT,

-IF4ICFXT, -OF4IXT, IF2XOF2IXT

User Manual

Summary of content (147 pages)

PAGE 1
FLEX I/O Isolated Analog Modules 1794-IF4I, -OF4I, IF2XOF2I, -IF4IXT, -IF4ICFXT, -OF4IXT, IF2XOF2IXT User Manual
PAGE 2
Important User Information Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (publication SGI-1.1 available from your local Rockwell Automation sales office or online at http://literature.rockwellautomation.com) describes some important differences between solid state equipment and hard-wired electromechanical devices.
PAGE 3
Preface Using this Manual Purpose of this Manual This manual shows you how to use your FLEX I/O Isolated Analog modules with Allen-Bradley programmable controllers. The manual helps you install, program and troubleshoot your modules. Except where noted, information that applies to 1794-IF4I, 1794-OF4I, and IF2XOF2I also applies to 1794-IF4IXT, 1794-IF4ICFXT, 1794-OF4IXT, and IF2XOF2IXT.
PAGE 4
Preface 4 Section Title Contents Chapter 4 Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter Explains how to configure your modules and read status information from your modules when using a remote I/O adapter Chapter 5 Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter Explains how you communicate with your modules, and how the I/O image is mapped when using a DeviceNet adapter Chapter 6 Input, Output, Status and Configuration Fi
PAGE 5
Preface Catalog Numbers Description Publications Installation Instructions User Manual 2-Slot Remote I/O Adapter 1794-5.44 1794-6.5.3 1794-TB2 1794-TB3 2-wire Terminal Base 3-wire Terminal Base 1794-5.2 1794-TBN Terminal Base Unit 1794-5.16 1794-TBNF Fused Terminal Base Unit 1794-5.17 1794-TB3T Temperature Terminal Base Unit 1794-5.41 1794-TB3S Spring Clamp Terminal Base Unit 1794-5.42 1794-TB3TS Spring Clamp Temperature Terminal Base Unit 1794-5.
PAGE 6
Preface 6 Publication 1794-6.5.
PAGE 7
Table of Contents Preface Table of Contents Overview of FLEX I/O and your Analog Modules Important User Information . . . . . . . . . . . . Using this Manual . . . . . . . . . . . . . . . . Purpose of this Manual . . . . . . . . . . . . . . . Audience . . . . . . . . . . . . . . . . . . . . . . . . . Vocabulary . . . . . . . . . . . . . . . . . . . . . . . . Manual Organization . . . . . . . . . . . . . . . . . Common Techniques Used in this Manual . For Additional Information . . . . . . . . . . . .
PAGE 8
Table of Contents 8 Chapter Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Chapter Writing Configuration to and Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Reading Status from Your Module Configuring Your Analog Module . . . . . . . . . . . . . . . . . . . . 53 Range Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 with a Remote I/O Adapter Safe State Selection . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 9
Table of Contents 9 4 Output Isolated Analog Module (Cat. No. 1794-OF4I) Image Table Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Isolated Analog Combo Module (Cat. No. 1794-IF2XOF2I) Image Table Mapping . . . . . . . . . . . . . . . . . . . . . . . . . 113 Chapter Calibrating Your Module Chapter Objective . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . When and How to Calibrate Your Isolated Analog Module . Tools and Equipment . . . . . . . . . . . . . . . . . .
PAGE 10
Table of Contents 10 Publication 1794-6.5.
PAGE 11
Chapter 1 Overview of FLEX I/O and your Analog Modules Chapter Objectives In this chapter, we tell you about: • what the FLEX I/O system is and what it contains • types of FLEX I/O analog modules • how FLEX I/O analog modules communicate with programmable controllers • the features of your analog modules The FLEX I/O System FLEX I/O is a small, modular I/O system for distributed applications that performs all of the functions of rack-based I/O.
PAGE 12
Overview of FLEX I/O and your Analog Modules Types of FLEX I/O Modules We describe the following FLEX I/O Analog modules in this user manual: Catalog Number Voltage Inputs Outputs Description 1794-IF4I 24V dc 4 – analog – 4 input, isolated 1794-OF4I 24V dc – 4 analog – 4 output, isolated 1794-IF2XOF2I 24V dc 2 2 analog – 2 input, isolated and 2 output, isolated FLEX I/O analog input, output and combination modules are block transfer modules that interface analog signals with any A
PAGE 13
Overview of FLEX I/O and your Analog Modules How FLEX I/O Analog Modules Communicate with Programmable Controllers 13 The adapter/power supply transfers data to the module (block transfer write) and from the module (block transfer read) using BTW and BTR instructions in your ladder diagram program. These instructions let the adapter obtain input values and status from the module, and let you send output values and establish the module’s mode of operation. Figure 1.2 describes the communication process.
PAGE 14
Overview of FLEX I/O and your Analog Modules Features of Your Analog Modules Each module has a unique label identifying its keyswitch position, wiring and module type. A removable label provides space for writing individual designations per your application.
PAGE 15
Chapter 2 How to Install Your Analog Module Chapter Objectives In this chapter, we tell you about: • • • • Before You Install Your Analog Module how to install your module how to set the module keyswitch how to wire the terminal base the indicators Before installing your analog module in the I/O chassis: You need to: As described under: Calculate the power requirements of all modules in each chassis.
PAGE 16
How to Install Your Analog Module Low Voltage Directive This product is tested to meet Council Directive 2006/95/EC Low Voltage, by applying the safety requirements of EN 61131–2 Programmable Controllers, Part 2 – Equipment Requirements and Tests. For specific information required by EN 61131-2, see the appropriate sections in this publication, as well as the following Allen-Bradley publications: • Industrial Automation Wiring and Grounding Guidelines For Noise Immunity, publication 1770-4.
PAGE 17
How to Install Your Analog Module 17 Methods of wiring the terminal base units are shown in the illustration below. ATTENTION Do not daisy chain power or ground from an analog terminal base unit to any ac or dc discrete module terminal base unit. Daisy-chaining 24V dc Note: All modules must be analog modules for this configuration.
PAGE 18
How to Install Your Analog Module Installing the Module Installation of the analog module consists of: • mounting the terminal base unit • installing the analog module into the terminal base unit • installing the connecting wiring to the terminal base unit If you are installing your module into a terminal base unit that is already installed, proceed to Mounting the Analog Module on the Terminal Base Unit on page 2-22.
PAGE 19
How to Install Your Analog Module 19 Figure 2.2 Slide the terminal base unit over tight against the adapter. Make sure the hook on the terminal base slides under the edge of the adapter and the flexbus connector is fully retracted. Press down on the terminal base unit to lock the terminal base on the DIN rail.
PAGE 20
How to Install Your Analog Module Panel/Wall Mounting Installation on a wall or panel consists of: • • • • laying out the drilling points on the wall or panel drilling the pilot holes for the mounting screws mounting the adapter mounting plate installing the terminal base units and securing them to the wall or panel If you are installing your module into a terminal base unit that is already installed, proceed to “Mounting the Analog Module on the Terminal Base” on . Use the mounting kit Cat. No.
PAGE 21
How to Install Your Analog Module 21 To install the mounting plate on a wall or panel: 1. Lay out the required points on the wall/panel as shown in the drilling dimension drawing. Figure 2.3 Drilling Dimensions for Panel/Wall Mounting of FLEX I/O Inches (Millimeters) 2.3 (58.5) 1.4 (35.5) 1.4 (35.5) 2.3 (58.5) 1.4 (35.5) .83 (21) 2. Drill the necessary holes for the #6 self-tapping mounting screws. 3.
PAGE 22
How to Install Your Analog Module Mounting the Analog Module on the Terminal Base Unit 1. Rotate the keyswitch (1) on the terminal base unit (2) clockwise to the position required for the specific type of analog module. Figure 2.4 7 3 1 2 6 4 5 Analog Module Catalog Number Keyswitch Position 1794-IF4I, 1794-IF4IXT, 1794-IF4ICFXT 3 1794-OF4I, 1794-OF4IXT 4 1794-IF2XOF2I, 1794-IF2XOF2IXT 5 2.
PAGE 23
How to Install Your Analog Module 23 6. Repeat the above steps to install the next module in its terminal base unit. ATTENTION Remove field-side power before removing or inserting the module. This module is designed so you can remove and insert it under backplane power. When you remove or insert a module with field-side power applied, an electrical arc may occur.
PAGE 24
How to Install Your Analog Module Connecting wiring for the individual analog modules is shown on: Module Connecting Wiring 1794-IF4I, 1794-IF4IXT, 1794-IF4ICFXT page 2-26 1794-OF4I, 1794-OF4IXT 1794-IF2XOF2I, 1794-IF2XOF2IXT page 2-27 Connecting Wiring using a 1794-TB3, -TB3T, -TB3S or -TB3TS Terminal Base Unit 1. Connect the individual signal wiring to numbered terminals on the 0–15 row (A) on the terminal base unit. (Use Belden 8761 cable for signal wiring.
PAGE 25
How to Install Your Analog Module ATTENTION 25 Remove field-side power before removing or inserting the module. This module is designed so you can remove and insert it under backplane power. When you remove or insert a module with field-side power applied, an electrical arc may occur.
PAGE 26
How to Install Your Analog Module Wiring to a 1794-TBN or 1794-TBNF Terminal Base Unit 1. Connect individual input or output wiring to the even numbered terminals on row (B) as indicated in the table below. 2. Connect the associated return wiring to the corresponding odd numbered terminal on row (C) for each input or output as indicated in the table below. 3. Connect 24V dc to terminal 34 on row (C). 4. Connect 24V dc common to terminal 16 on row (B). 5.
PAGE 27
How to Install Your Analog Module 27 Table 2.
PAGE 28
How to Install Your Analog Module Table 2.
PAGE 29
How to Install Your Analog Module 29 Figure 2.
PAGE 30
How to Install Your Analog Module Module Indicators The analog modules have one status indicator that is on when power is applied to the module. 1794-IF4I 1794-OF4I OK Status Indicator ± Indicates power applied to module and status. When flashing, examine module status word. 1794-IF2XOF2I Chapter Summary Publication 1794-6.5.8 - January 2010 In this chapter you learned how to install your input module in an existing programmable controller system and how to wire to the terminal base units.
PAGE 31
Chapter 1 Module Programming Chapter Objectives In this chapter, we tell you about: • • • • Block Transfer Programming analog data format block transfer programming configuration rungs sample programs for the PLC-3 and PLC-5 processors Your module communicates with the processor through bidirectional block transfers. This is the sequential operation of both read and write block transfer instructions.
PAGE 32
Module Programming Configuration Rungs Example Configuration Rungs It is necessary to toggle the IC bit(1) (initiate configuration) for the isolated analog modules to accept configuration data. Once the configuration data has been properly set up, the following rung will reconfigure the module (this example represents sizes for the 1794-IF4I module).
PAGE 33
Module Programming Sample Programs for FLEX I/O Analog Modules 33 The following sample programs show you how to use your analog module efficiently when operating with a programmable controller. These programs show you how to: • configure the module • read data from the module • update the module’s output channels (if used) With RSLogix5000, just read or write the tags provided. RSLogix will perform the transfer so an explicit block transfer is not required.
PAGE 34
Module Programming Figure 1.1 PLC-3 Family Sample Program Structure for a 1794-IF4I Module BTR BLOCK XFER READ RACK: GROUP: MODULE: CONTROL: DATA FILE: LENGTH: Block Transfer Read Done Bit B3:0 Program Action At power-up in RUN mode, or when the processor is switched from PROG to RUN, the user program enables a block transfer read.
PAGE 35
Module Programming 35 Figure 1.3 PLC-3 Family Sample Program Structure for a 1794-IF2XOF2I Module Enable BTR Program Action At power-up in RUN mode, or when the processor is switched from PROG to RUN, the user program enables a block transfer read.
PAGE 36
Module Programming Figure 1.4 PLC-5 Family Sample Program Structure for the 1794-IF4I BTR Enable Bit N13:10 Program Action BTR BLOCK TRANSFER READ 1 At power-up in RUN mode, or when the processor is switched from PROG to RUN, the user program enables a block transfer read.
PAGE 37
Module Programming 37 Figure 1.5 PLC-5 Family Sample Program Structure for the 1794-OF4I BTR Enable Bit N15:10 Program Action BTR BLOCK TRANSFER READ 1 15 At power-up in RUN mode, or when the processor is switched from PROG to RUN, the user program enables a block transfer read.
PAGE 38
Module Programming Figure 1.6 PLC-5 Family Sample Program Structure for the 1794-IF2XOF2I Program BTR Enable Bit N17:10 Action At power-up in RUN mode, or when the processor is switched from PROG to RUN, the user program enables a block transfer read. 1 15 This rung toggles the Initate Configuration bit from 0 to 1 to 0 Then it initiates a block transfer write to configure the module and send data values.
PAGE 39
Module Programming 39 Figure 1.7 SLC Programming for the 1794-OF4I Isolated Analog Output Module Program Action PowerUp Bit S2:1 0000 15 This rung configures the block transfer operation type, length, and RIO address at power-up. Bit B3:100/7 must be set to 1 to indicate a BTR and bit B3:110/7 must be 0 to indicate a BTW. BTR PENDING B3:5 0001 BTR status is copied to the B3:0 area when a BTR is in progress. 0 BTR_CONTROL COP COPY FILE SOURCE DEST LENGTH #B3:100 #M0:1.
PAGE 40
Module Programming P rogra m Action BTR DONE BIT B3:0 0005 13 This rung buffers the BTR data when a transfer is successfully completed. COP COPY FILE SOURCE DEST LENGTH #M1:1.110 #N7:0 6 BTR PENDING B3:5 U 0 BTR ENABLE BIT B3:100 U 15 CHECK BTR ST ATUS B3:5 L 1 This rung buffers the error code if a BTR is not successful. 0006 BTR DONE BIT B3:0 12 MOV MOVE SOURCE DEST #M1:1.
PAGE 41
Module Programming 41 P rogra m Action BTW ERROR BIT B3:10 MOV MOVE SOURCE 0008 This rung buffers the error code if a BTW is not successful. 12 #M1:1.203 6 #N7:17 0< DEST BTW PENDING B3:15 U 0 BTW ENABLE BIT B3:110 U 15 CHECK BTW ST ATUS B3:15 L 1 BTR ENABLE BIT B3:100 BTR DONE BIT B3:0 BTR ERROR BIT B3:0 0009 15 This rung executes BTRs continuously .
PAGE 42
Module Programming Program Action BTR CONTROL BTR ENABLE BIT B3:100 MOV MOVE SOURCE 0011 15 This BTR control word is moved to the M0 file for the scanner module. BTR DONE BIT B3:0 DEST B3:100 00000001000000< M0:1.100 ?< 13 BTR ERROR BIT B3:0 12 BTW CONTROL BTW ENABLE BIT B3:110 MOV MOVE SOURCE 0012 15 This BTW control word is moved to the M0 file for the scanner module. BTW DONE BIT B3:10 DEST B3:110 00000001000000< M0:1.
PAGE 43
Module Programming 43 Figure 1.8 SLC Programming for the 1794-IF4I Isolated Analog Input Module Program Action PowerUp Bit S2:1 0000 This rung configures the block transfer operation type, length, and RIO address at power-up. Bit B3:100/7 must be set to 1 to indicate a BTR and bit B3:110/7 must be 0 to indicate a BTW. 15 BTR PENDING B3:5 0001 BTR status is copied to the B3:0 area when a BTR is in progress. 0 BTR_CONTROL COP COPY FILE SOURCE DEST LENGTH #B3:100 #M0:1.
PAGE 44
Module Programming P rogra m Action CHECK BTW ST ATUS B3:15 BTW DONE BIT B3:10 0004 U 13 Unlatch the bit that continues to check the BTW status. 1 BTW ERROR BIT B3:10 12 BTR DONE BIT B3:0 0005 13 This rung buffers the BTR data when a transfer is successfully completed. COP COPY FILE SOURCE DEST LENGTH #M1:1.110 #N7:0 7 BTR PENDING B3:5 U 0 BTR ENABLE BIT B3:100 U 15 CHECK BTR ST ATUS B3:5 L 1 This rung buffers the error code if a BTR is not successful.
PAGE 45
Module Programming P rogra m Action BTW PENDING B3:15 U 0 BTW DONE BIT B3:10 0007 13 This rung manipulates the flags for the BTW. 45 BTW ENABLE BIT B3:110 U 15 CHECK BTW ST ATUS B3:15 U 1 BTW ERROR BIT B3:10 MOV MOVE SOURCE 0008 This rung buffers the error code if a BTW is not successful. 12 M1:1.
PAGE 46
Module Programming Program Action BTW ENABLE BTW DONE BTW ERROR BIT BIT BIT B3:10 B3:110 B3:10 PU BIT N7:5 0010 15 This rung executes a BTW to configure the module when the power-up bit (PU) is set. 15 13 12 COP COPY FILE SOURCE DEST LENGTH #N7:10 #M0:1.210 5 BTW ENABLE BIT B3:110 L 15 BTW PENDING B3:15 L 0 BTR CONTROL BTR ENABLE BIT B3:100 MOV MOVE SOURCE 0011 15 This BTR control word is moved to the M0 file for the scanner module. BTR DONE BIT B3:0 DEST B3:100 00000001000000< M0:1.
PAGE 47
Module Programming 47 Figure 1.9 SLC Programming for the 1794-IF2XOF2I Isolated Analog Input/Output Module Program Action PowerUp Bit S2:1 0000 This rung configures the block transfer operation type, length, and RIO address at power-up. Bit B3:100/7 must be set to 1 to indicate a BTR and bit B3:110/7 must be 0 to indicate a BTW. 15 BTR PENDING B3:5 0001 BTR status is copied to the B3:0 area when a BTR is in progress. 0 BTR_CONTROL COP COPY FILE SOURCE DEST LENGTH #B3:100 #M0:1.
PAGE 48
Module Programming P rogra m Action CHK BTW STATUS B3:15 U 1 BTW DONE BIT B3:10 0005 13 Unlatch the bit that continues to check the BTW status. BTW ERROR BIT B3:10 12 BTR DONE BIT B3:0 0006 13 This rung buffers the BTR data when a transfer is successfully completed. COP COPY FILE SOURCE DEST LENGTH #M1:1.110 #N7:0 7 BTR PENDING B3:5 U 0 BTR ENABLE BIT B3:100 U 15 CHK BTR ST ATUS B3:5 L 1 This rung buffers the error code if a BTR is not successful.
PAGE 49
Module Programming P rogra m Action 49 BTW PENDING B3:15 BTW DONE BIT B3:10 0008 U 13 This rung manipulates the flags for the BTW. 0 BTW ENABLE BIT B3:110 U 15 CHECK BTW ST ATUS B3:15 L 1 BTW ERROR BIT B3:10 MOV MOVE SOURCE 0009 This rung buffers the error code if a BTW is not successful. 12 M1:1.203 N7:17 0< DEST BTW PENDING B3:15 U 0 BTW ENABLE BIT B3:110 U 15 CHK BTW STATUS B3:15 L 1 BTR ENABLE BIT B3:100 BTR DONE BIT B3:0 BTR ERROR BIT B3:0 0010 This rung executes BTRs continuously .
PAGE 50
Module Programming Program Action BTW ENABLE BTW DONE BIT BIT B3:10 B3:110 0011 This rung executes a BTW to configure the module when the power-up bit is set. The configuration data for the FLEX module should be placed in the wirte data. 15 BTW ERROR BIT B3:10 12 13 COP COPY FILE SOURCE DEST LENGTH #N7:10 #M0:1.210 7 BTW ENABLE BIT B3:110 L 15 BTW PENDING B3:15 L 0 BTR CONTROL BTR ENABLE BIT B3:100 MOV MOVE SOURCE 0012 15 This BTR control word is moved to the M0 file for the scanner module.
PAGE 51
Module Programming Chapter Summary 51 In this chapter, you learned how to program your programmable controller. You were given sample programs for your PLC-3 and PLC-5 family processors. Publication 1794-6.5.
PAGE 52
Module Programming Publication 1794-6.5.
PAGE 53
Chapter 4 Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter Chapter Objectives In this chapter, we tell you about: • • • • Configuring Your Analog Module configuring your module’s features entering your data reading data from your module read block format Because of the many analog devices available and the wide variety of possible configurations, you must configure your module to conform to the analog device and specific application that you have chosen.
PAGE 54
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter Range Selection Individual input channels are configurable to operate with the following voltage or current ranges: Table 4.
PAGE 55
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter Real Time Sampling 55 Real time sampling (RTS) provides data gathered at precise intervals for use by the processor. You set a word in the block transfer write data file to enable RTS. The real time sample programmed interval is the time at which updated information will be supplied to the processor.
PAGE 56
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter The real time sample interval can be set from 0 to 30s, in increments of 5ms. Set the real time sample interval in binary using 15 bits in the block transfer write word. Word/Dec.
PAGE 57
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter 57 can be set individually. Select the filter based on your system requirements.
PAGE 58
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter 8 Input Analog Module (Cat. No. 1794-IF4I) Module Image Input Data Channel 0 I/O Image Input Data Channel 1 Input Size Input Data Channel 2 1 to 7 Words Input Data Channel 3 Real Time Sample PU FP CF BD DN Overrange Underrange Output Size EN 0 to 5 Words Set to 0 Channel Filters Channel Configuration Real Time Sample Programmed Interval IC 1 TR IT Channel # RV QK CK GO Table 4.
PAGE 59
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter 59 Table 4.
PAGE 60
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter Table 4.5 Analog Input Module (1794-IF4I) Write Configuration Block Word/Dec.
PAGE 61
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter 61 Table 4.6 Word/Bit Descriptions for the 1794-IF4I Analog Input ModuleWrite Write Word Decimal Bit (Octal Bit) Definition Word 4 Bit 00–03 Channel calibration selection bit. When this bit is set (1), the channel can be calibrated using the calibration clock bit (CK).
PAGE 62
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter Table 4.
PAGE 63
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter 63 Table 4.8 Configuring Your Input Module Bit Settings Input Values Data Format % Underrange %Overrange Input Range(2) Module Update Rate Hexadecimal Decimal (RTSI = 0) (RTSI = 0) IT = 1 0 0 0 0 Channel not configured 0 0 0 1 4–20mA signed 2’s complement 4% Under; 4% Over <0000–7878> <0000–30840> 7.5ms 5.
PAGE 64
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter 4 Isolated Output Analog Module (Cat. No.
PAGE 65
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter 65 Table 4.10 Bit/Word Descriptions for the 1794-OF4I Analog Output Module Read Read Word Decimal Bit (Octal Bit) Word 0 Bits 00-15 (00-17) Read Back Channel 0 – During normal operation, it is a copy of the output of channel 0. During an EN transition, it is the condition of the output as determined by S1 and S0.
PAGE 66
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter Table 4.11 Analog Output Module (1794-OF4I) Write Configuration Block Word/Dec.
PAGE 67
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter 67 Table 4.12 Range Selection Bits and Real Time Output Update Rate for the 1794-OF4I Isolated Output Module 1 1 1 0 ±10V offset binary <0618–F9E8> <1560–63976> 2.5ms 1 1 1 1 ±5V offset binary <0618–F9E8> <1560–63976> 2.5ms Table 4.
PAGE 68
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter Table 4.13 Word/Bit Descriptions for the 1794-OF4I Analog Output Module Write Word Decimal Bit (Octal Bit) Definition Word 6 Bit 00–03 Channel calibration selection bit. When this bit is set (1), the channel can be calibrated using the calibration clock bit (CK).
PAGE 69
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter 69 2 Input/2 Output Analog Combo Module (Cat. No.
PAGE 70
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter Table 4.
PAGE 71
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter 71 Table 4.15 Configuring Your Input Channels 1 0 1 0 0–10V binary 0% Under, 2% Over 0000–F9C2> 0000–63938> 2.5ms 2.5ms 1 0 1 1 0–5V binary 0% Under, 4% Over 0000–F3CF> 0000–62415> 2.5ms 2.5ms 1 1 0 0 ±20mA offset binary, 8000H = 0mA 4% Under, 4% Over <0618–F9E8> <1560–63976> 2.5ms 2.5ms 1 1 0 1 4–20mA offset binary, 8000H = 4mA 4% Under, 4% Over <8000–F878> <32768–63608> 7.
PAGE 72
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter Table 4.
PAGE 73
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter 73 Table 4.17 Word/Bit Descriptions for the 1794-IF2XOF2I Isolated Analog Combo Module Read Write Word Decimal Bit (Octal Bit) Definition Word 6 Bits 00-01 Underrange bits (U). – These bits are set (1) when the input channel is below a preset limit as defined by the configuration selected. U0 (bit 00) corresponds to input channel 0 and U1 (bit 01) corresponds to input channel 1, etc. Refer to Table 4.15.
PAGE 74
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter Table 4.19 Configuring Your Outputs for the 1794-IF2XOF2I Analog Combo Module Configuration Bits Nominal Range MSD LSD 0 0 0 1 4-20mA 0 0 1 0 0 0 1 0 1 0 Data Type Update Rate Output Values(1) Hexadecimal Decimal 2’s complement <0000–7878> <0000–30840> ±10V 2’s complement <8618–79E8> <–31208–31208> 2.5ms 1 ±5V 2’s complement <8618–79E8> <–31208–31208> 2.
PAGE 75
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter 75 Table 4.20 Word/Bit Descriptions for the 1794-IF2XOF2I Analog Combo Module Write Write Word Decimal Bit (Octal Bit) Definition Word 2 Bits 00–15 (00–17) Output Channel 1 data. Refer to Table 4.19. Word 3 Input Channels 0 and 1 Filter Selections (refer to Table 4.
PAGE 76
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter Table 4.20 Word/Bit Descriptions for the 1794-IF2XOF2I Analog Combo Module Write Write Word Decimal Bit (Octal Bit) Definition Word 6 Bit 00–03 Channel calibration selection bit. When this bit is set (1), the channel can be calibrated using the calibration clock bit (CK).
PAGE 77
Chapter 5 Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter Chapter Objectives In this chapter, you will read about: • • • • RSNetWorx and RSLogix software I/O structure image table mapping factory defaults About RSNetWorx and RSLogix RSNetWorx is a software tool used in conjunction with RSLogix to configure your FLEX I/O DeviceNet or ControlNetadapter and its related modules. This software tool can be connected to the adapter via the DeviceNet network.
PAGE 78
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter Adapter Input Status Word The input status word consists of: • I/O module fault bits – 1 status bit for each slot • node address changed – 1 bit • I/O status – 1 bit I/O Module Fault Bits Slot 0 1 0 Slot 1 Slot 2 Not Used Slot 3 9 8 7 6 5 4 3 2 Slot 5 Slot 4 10 through 15 Slot 6 15 Slot 7 Bit: I/O State Bit Node Address Changed Bit The adapter input status word bit descriptions are shown in the following table.
PAGE 79
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter Mapping Data into the Image Table 79 FLEX I/O analog modules are supported by the DeviceNet adapter. Module Description Catalog Number: For image table mapping refer to: 4 Input Isolated Analog Module 1794-IF4I page 5-79 4 Output Isolated Analog Module 1794-OF4I page 5-86 2 in/2 out Isolated Analog Combo Module 1794-IF2XOF2I page 5-91 4 Input Isolated Analog Module (Cat. No.
PAGE 80
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter Table 5.2 Analog Input Module (1794-IF4ICFXT) Write Dec. 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Oct.
PAGE 81
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter 81 Table 5.
PAGE 82
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter Table 5.5 Configuring Your Input Module 0 0 0 1 4–20mA signed 2’s complement 4% Under; 4% Over <0000–7878> <0000–30840> 7.5ms 5.0ms 0 0 1 0 ±10V signed 2’s complement 2% Under, 2% Over <831F–7CE1> <–31969–31969> 2.5ms 2.5ms 0 0 1 1 ±5V signed 2’s complement 4% Under, 4% Over <8618–79E8> <–31208–31208> 2.5ms 2.
PAGE 83
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter 83 Table 5.6 Word/Bit Descriptions for the 1794-IF4I Isolated Analog Input Module Word Decimal Bit (Octal Bit) Definition Word 6 Bit 00 Reserved Bit 01 Calibration Done bit (DN). – This bit is set to 1 after a calibration cycle is completed. Bit 02 Calibration Bad bit (BD). – This bit is set to 1 if the channel calibration coefficients cannot be saved or be read properly. Bits 03-07 Set to 0.
PAGE 84
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter Table 5.6 Word/Bit Descriptions for the 1794-IF4I Isolated Analog Input Module Word Decimal Bit (Octal Bit) Word 3 Channels 0 through 3 Filter Selections (refer to Table 5.5) Word 4 Word 5 Publication 1794-6.5.
PAGE 85
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter 85 Table 5.6 Word/Bit Descriptions for the 1794-IF4I Isolated Analog Input Module Word Decimal Bit (Octal Bit) Definition Word 5 Bit 12 (14) Interrupt Toggle bit (IT) – This bit, when set (1), permits interleaving of module interrupts ensuring exchange of critical data when channels are configured for their fastest update times. RTSI and “no low pass filter” must be 0 in order for the module to recognize this feature.
PAGE 86
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter 4 Output Isolated Analog Module (Cat. No.
PAGE 87
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter 87 Table 5.8 Analog Output Module (1794-OF4I) Write Configuration Block Word/Dec.
PAGE 88
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter Table 5.9 Configuring Your Outputs for the 1794-OF4I Isolated Output Module 1 1 1 0 ±10V offset binary <0618–F9E8> <1560–63976> 2.5ms 1 1 1 1 ±5V offset binary <0618–F9E8> <1560–63976> 2.5ms Table 5.
PAGE 89
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter 89 Table 5.10 Word/Bit Descriptions for the 1794-OF4I Isolated Analog Output Module Word Decimal Bit (Octal Bit) Definition Word 6 Bits 00-03 Wire-Off status bits. (W). – These bits, when set (1), indicate the corresponding current output channel is open. W0 corresponds to channel 0, W1 corresponds to channel 2, etc. Bits 04-07 Set to 0. Bits 10-11 (12-13) Hold output bits (P).
PAGE 90
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter Table 5.10 Word/Bit Descriptions for the 1794-OF4I Isolated Analog Output Module Word Decimal Bit (Octal Bit) Definition Word 7 Bit 00-03 Channel calibration selection bit. When this bit is set (1), the channel can be calibrated using the calibration clock bit (CK).
PAGE 91
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter 91 Isolated Analog Combo Module (Cat. No.
PAGE 92
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter Table 5.
PAGE 93
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter 93 Table 5.13 Setting the Input Filter 0 1 1 1 600Hz 1000ms low pass 1 0 0 0 300Hz No low pass 1 0 0 1 300Hz 100ms low pass 1 0 1 0 300Hz 500ms low pass 1 0 1 1 300Hz 1000ms low pass 1 1 0 0 150Hz No low pass 1 1 0 1 150Hz 100ms low pass 1 1 1 0 150Hz 500ms low pass 1 1 1 1 150Hz 1000ms low pass Table 5.
PAGE 94
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter Table 5.
PAGE 95
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter 95 Table 5.15 Word/Bit Descriptions for the 1794-IF2XOF2I Isolated Analog Combo Module Write Word Decimal Bit (Octal Bit) Definition Word 6 Bits 00-01 Underrange bits (U). – These bits are set (1) when the input channel is below a preset limit as defined by the configuration selected. U0 (bit 00) corresponds to input channel 0 and U1 (bit 01) corresponds to input channel 1 Bits 02-03 Wire-Off status bits. (W).
PAGE 96
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter Table 5.15 Word/Bit Descriptions for the 1794-IF2XOF2I Isolated Analog Combo Module Write Word Decimal Bit (Octal Bit) Definition Word 6 Bits 00-14 (00-16) Real Time Sample Interval – Programs the interval of the real time sample. Can be varied from 0 to 30 seconds (30000 decimal). Resolution is in ms with granularity in 5ms steps. Bit 15 (17) Set to 0. Bits 00-03 Channel calibration selection bit.
PAGE 97
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter Defaults 97 Each I/O module has default values associated with it. At default, each module will generate inputs/status and expect outputs/configuration.
PAGE 98
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter Publication 1794-6.5.
PAGE 99
Chapter 6 Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet Chapter Objectives In this chapter, you will read about: • • • • • • ControlNet Adapter I/O structure safe state data communication fault data idle state behavior input data behavior upon module removal About the ControlNet Adapter The FLEX I/O ControlNet adapters (cat. no. 1794–ACN15 and – ACNR15) is the interface between up to 8 FLEX I/O modules and a ControlNet processor or scanner.
PAGE 100
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet The I/O map for a module is divided into read words and write words. Read words consist of input and status words, and write words consist of output and configuration words. The number of read words or write words can be 0 or more. The length of each I/O module’s read words and write words vary in size depending on module complexity. Each I/O module will support at least 1 input word or 1 output word.
PAGE 101
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet 101 Adapter Input Status Word The input status word consists of: • I/O module fault bits – 1 status bit for each slot • node address changed – 1 bit • I/O status – 1 bit I/O Module Fault Bits Slot 0 1 0 Slot 1 Slot 2 Not Used Slot 3 9 8 7 6 5 4 3 2 Slot 5 Slot 4 10 through 15 Slot 6 15 Slot 7 Bit: I/O State Bit Node Address Changed Bit The adapter input status word bit descriptions are shown in the follo
PAGE 102
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet Possible causes for an I/O Module Fault are: • • • • • transmission errors on the FLEX I/O backplane a failed module a module removed from its terminal base incorrect module inserted in a slot position the slot is empty Safe State Data The ControlNet adapter provides the non-discrete module output data during communication faults or processor idle state.
PAGE 103
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet Input Data Behavior Upon Module Removal 103 I/O module input data sent by the adapter upon module removal is configurable. The adapter can: • reset the module output data to zero (reset) • leave the module output data in the last state before module removal (hold last state) To find the image table for: See page: 4 Input Isolated Analog Module (Cat. No.
PAGE 104
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet Table 6.2 Output (Configuration) Map Dec. 15 14 13 12 11 10 9 Oct.
PAGE 105
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet 105 Table 6.3 Word/Bit Descriptions for Isolated Analog Input Module Word Decimal Bit (Octal Bit) Definition Word 5 Bit 00 Reserved Bit 01 Calibration Done bit (DN). – This bit is set to 1 after a calibration cycle is completed. Bit 02 Calibration Bad bit (BD). – This bit is set to 1 if the channel calibration coefficients cannot be saved or be read properly. Bits 03-07 Set to 0.
PAGE 106
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet Table 6.3 Word/Bit Descriptions for Isolated Analog Input Module Word Decimal Bit (Octal Bit) Word 2 Channel Configuration Word 3 Definition Bits 00-03 Channel 0 Configuration Bits 04-07 Channel 1 Configuration Bits 08-11 (10-13) Channel 2 Configuration Bits 12-15 (14-17) Channel 3 Configuration Bits 00-14 (00-16) Real Time Sample Interval – Programs the interval of the real time sample.
PAGE 107
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet 107 Table 6.3 Word/Bit Descriptions for Isolated Analog Input Module Word Decimal Bit (Octal Bit) Definition Word 4 Bit 00-03 Channel calibration selection bit. When this bit is set (1), the channel can be calibrated using the calibration clock bit (CK).
PAGE 108
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet Table 6.3 Word/Bit Descriptions for Isolated Analog Input Module Word Decimal Bit (Octal Bit) Definition Table 6.
PAGE 109
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet 109 Table 6.5 Configuring Your Input Module Bit Settings Input Values Data Format % Underrange %Overrange Input Range Module Update Rate Hexadecimal Decimal (RTS = 0) 0 0 0 0 Channel not configured 0 0 0 1 4–20mA signed 2’s complement 4% Under; 4% Over <0000–7878> <0000–30840> 7.5ms 0 0 1 0 ±10V signed 2’s complement 2% Under, 2% Over <831F–7CE1> <–31969–31969> 2.
PAGE 110
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet 4 Output Isolated Analog Module (Cat. No. 1794-OF4I) Image Table Mapping Module Image Read Back Channel 0 I/O Image Read Back Channel 1 Input Size Read Back Channel 2 0 to 6 Words Read Back Channel 3 PU FP CF BD DN Hold Outputs Wire-off Output Size 0 to 5 Words EN S1 S0 Set to 0 Output Data Channel 0 Output Data Channel 1 Output Data Channel 2 Output Data Channel 3 Config.
PAGE 111
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet 111 Table 6.6 Word/Bit Descriptions for the 1794-OF4I Isolated Analog Output Module Word Decimal Bit (Octal Bit) Definition Input Word 0 Bits 00-15 (00-17) Read Back Channel 0 – During normal operation, it is a copy of the output of channel 0. During an EN transition, it is the condition of the output as determined by S1 and S0.
PAGE 112
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet Table 6.6 Word/Bit Descriptions for the 1794-OF4I Isolated Analog Output Module Word Decimal Bit (Octal Bit) Definition Word 5 Bits 00-03 Wire-Off status bits. (W). – These bits, when set (1), indicate the corresponding current output channel is open. W0 corresponds to channel 0, W1 corresponds to channel 2, etc. Bits 04-07 Set to 0. Bits 10-11 (12-13) Hold output bits (P).
PAGE 113
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet 113 Table 6.6 Word/Bit Descriptions for the 1794-OF4I Isolated Analog Output Module Word Decimal Bit (Octal Bit) Definition Word 1 Bit 00-03 Channel calibration selection bit. When this bit is set (1), the channel can be calibrated using the calibration clock bit (CK).
PAGE 114
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet Table 6.6 Word/Bit Descriptions for the 1794-OF4I Isolated Analog Output Module Word Decimal Bit (Octal Bit) Definition Word 2 Bits 00-14 (00-16) Not used Bits 13-14 (15-16) Safe State Source bits (S1/S0) - Not used in ControlNet applications. Turn these bits off (i.e.
PAGE 115
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet 115 Isolated Analog Combo Module (Cat. No.
PAGE 116
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet Table 6.8 Word/Bit Descriptions for the 1794-IF2XOF2I Isolated Analog Combo Module Write Word Decimal Bit (Octal Bit) Definition Word 4 Bits 00–15 (00–17) Real Time Sample. The elapsed time in increments programmed by the real time sample interval. Word 5 Bits 00 Reserved Bits 01 Calibration Done bit (DN). – This bit is set to 1 after a calibration cycle is completed.
PAGE 117
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet 117 Table 6.
PAGE 118
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet Table 6.8 Word/Bit Descriptions for the 1794-IF2XOF2I Isolated Analog Combo Module Write Word Decimal Bit (Octal Bit) Definition Word 3 Bits 10-11 (12-13) Request for hold outputs (Q). – Channel request bits that instruct an output to hold its output level when EN transitions from 0 to 1 to 0. When EN is 0, outputs go to a safe state dictated by S1/S0.
PAGE 119
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet 119 Table 6.9 Configuring Your Input Channels 0 1 0 1 4-20mA signed 2’s complement % 4% Under, 4% Over <0–10000> <0–10000> 7.5ms 0 1 1 0 0–10V signed 2’s complement % 0% Under, 2% Over 0–10000> 0–10000> 5.0ms 0 1 1 1 +10V signed 2’s complement % 2% Under, 2% Over <–10000–10000> <–10000–10000> 5.0ms 1 0 0 0 0–20mA binary 0% Under, 4% Over 0000–F3CF> 0000–62415> 2.
PAGE 120
Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet Table 6.11 Configuring Your Outputs for the 1794-IF2XOF2I Analog Combo Module Configuration Bits Nominal Range MSD LSD 0 0 0 1 4-20mA 0 0 1 0 0 0 1 0 1 0 Data Type Update Rate Output Values(1) Hexadecimal Decimal 2’s complement <0000–7878> <0000–30840> +10V 2’s complement <8618–79E8> <–31208–31208> 2.5ms 1 +5V 2’s complement <8618–79E8> <–31208–31208> 2.
PAGE 121
Chapter 7 Calibrating Your Module Chapter Objective In this chapter we tell you: • what tools are needed to calibrate • how to calibrate your module • how to scale to engineering units When and How to Calibrate Your Isolated Analog Module Your module is shipped to you already calibrated for 150Hz, 300Hz and 600Hz. If you are checking calibration, or if it becomes necessary to recalibrate the module, you must do so with the module in a FLEX I/O system.
PAGE 122
120 Calibrating Your Module Tools and Equipment In order to calibrate your input module you will need the following tools and equipment: Tool or Equipment Description Model/Type Precision Voltage/Current Source 0–10.25V, 10μV resolution or better 0–21mA, 100nA or better HP3245A or equivalent Precision Voltage/Current Meter 0–10.5V, 10μV or better 0–22mA, 100nA or better Datron, Wavetek or equivalent Industrial Terminal and Interconnect Cable Programming terminal for A–B family processors Cat.
PAGE 123
Calibrating Your Module Calibrating Your Isolated Analog Input Module 121 The analog input module is shipped already calibrated for 150Hz, 300Hz and 600Hz. No recalibration is required when switching between these conversion rates. Recalibration is required when going to 1200Hz conversion rate. Calibration of the module consists of applying a voltage or current across each input channel for offset and gain calibration. Bits Used During Calibration Refer to chapter 4 for bit/word descriptions.
PAGE 124
122 Calibrating Your Module Offset Calibration for Inputs Refer to the input timing diagram when calibrating the module. Normally all inputs are calibrated together. To calibrate the offset, proceed as follows: 1. The module must be calibrated in an operating system. Connect your module in a calibration setup as shown above. 2. Send a block transfer write (BTW) to the module with individual channel bits set for the configuration desired for each input.
PAGE 125
Calibrating Your Module 123 5. Send another BTW to the module to reset the CK bit (0). When the GO bit is low, the previously determined offset coefficients are stored in EEPROM for the selected channels. If QK is set (1) high, the same coefficients will be stored to all “like” configurations (i.e. if configuration bits are set for a specific voltage, both unipolar/bipolar, x1/x2 – will have the same coefficients stored – see Table 7.1).
PAGE 126
124 Calibrating Your Module Setting the Input Gain Set the gain of the module second. You must set the offset before setting the gain. 1. Apply gain voltage (5.25V or 10.25V) or current (21.0mA) toselected inputs. 2. Send a BTW to the module to set the IC bit and the CK bit to 1 and the GO bit to 1. This tells the module to determine gain voltage/current for the selected channels. If you also set the RV bit to 1, default values will be used on all selected channels. 3.
PAGE 127
Calibrating Your Module Calibrating Your Isolated Analog Output Module 125 Calibration of the module consists of measuring a voltage or current across each output, and calculating an offset or gain correction value. IMPORTANT Voltage calibration requires offset calibration followed by gain calibration. Current calibration requires gain calibration followed by offset calibration, and then a limited gain calibration using corrected coefficients.
PAGE 128
126 Calibrating Your Module Calibrating Voltage Outputs Voltage calibration requires offset calibration followed by gain calibration. Offset Calibration for Voltage Outputs Refer to the output timing diagram when calibrating the module. Normally all outputs are calibrated together. To calibrate the offset of an output, proceed as follows: 1. If you are not calibrating all channels with the same configuration, select the channel to be calibrated by setting the bit for that channel. 2.
PAGE 129
Calibrating Your Module 127 4. Send a block transfer write with the output values for offset voltage to the module (–31208 for –10V mode 2). Measure the output. Calculate the offset correction for each channel: offset_corr = (–10V – measured_value) X 3120.7619 5. Enter these offset corrections in the output word for each channel being calibrated. 6. Send a block transfer write with the IC bit and the CK bit set to 1.
PAGE 130
128 Calibrating Your Module Calibrating Current Outputs Current calibration requires gain calibration followed by offset calibration, and a limited gain calibration using corrected coefficients. Gain Calibration for Current Outputs 1. Send a block transfer write to the module to set the output values for gain voltage; F3CF hex for 20.0mA mode 8. Measure the output. Calculate the gain correction for each channel as follows: gain_corr = (0.02A – measured_value) X 3202194.613 2.
PAGE 131
Calibrating Your Module 129 Figure 7.4 Output Calibration Timing Diagram Configuration Offset Gain Bit 15 Bit 14 1 Bit 07 Bit 06 Bit 05 Bit 04 Bit 01 ± 03 3. Clear all offset and gain coefficients by: a. Set output data to 0 and the IC bit to 1 b. With GO = 0, toggle the CK bit c. With GO = 1, toggle the CK bit d. Clear the IC bit 4. Send a block transfer write with the output values for offset voltage to the module (+1560 for 0.5mA mode 8). Measure the output.
PAGE 132
130 Calibrating Your Module Final Gain Calibration for Current Inputs After performing a gain calibration and an offset calibration: 1. Enter a new gain correction calculated as follows into the respective output words: new gain_corr = gain_corr – ( 2 x offset_corr ) 2. Send a block transfer write with the CK bit set to 1. With GO high, the module will copy “gain_corr” coefficients (signed 2’s complement format) from the data words into gain storage for the selected channels.
PAGE 133
Calibrating Your Module 131 Scaling Inputs Inputs are scaled using the y = mx + b linear formula, as illustrated by the three types below.
PAGE 134
132 Calibrating Your Module Scaling Outputs Outputs are scaled in the same manner as the inputs and are represented by the following illustration.
PAGE 135
Appendix A Specifications Specifications for the modules, including environmental and certifications can be found in the following Installation Instructions. Catalogs Publication 1794-OF4I 1794-IN037 1794-IF4I 1794-IN038 1794-IF2XOF2I 1794-IN039 1794-IF4IXT, 1794-OF4IXT, 1794-IF2XOF2IXT 1794-IN129 1794-IF4ICFXT 133 1794-IN130 Publication 1794-6.5.
PAGE 136
134 Specifications Filter Response for 150Hz, 300Hz and 600Hz Conversion Figure A.1 Filter Response at 150Hz Conversion 0 5 15 25 35 45 55 65 75 85 95 105 115 ±10 ±20 ±30 ±40 Magnitude [dB] ±50 ±60 ±70 ±80 ±90 ±100 Frequency [Hz] Publication 1794-6.5.
PAGE 137
Specifications 135 Figure A.2 Filter Response at 300Hz Conversion 0 5 15 25 35 45 55 65 75 85 95 105 115 125 135 145 155 165 175 185 195 ±10 ±20 ±30 ±40 Magnitude [dB] ±50 ±60 ±70 ±80 ±90 Frequency [Hz] Publication 1794-6.5.
PAGE 138
136 Specifications Figure A.3 Filter Response at 600Hz Conversion 0 5 15 25 35 45 55 65 75 85 95 105 115 ±10 ±20 ±30 Magnitude [dB] ±40 ±50 ±60 ±70 ±80 ±90 Frequency [Hz] Publication 1794-6.5.
PAGE 139
Appendix B Class I, Division 2, Group A, B, C, D Hazardous Locations Statement The following information applies when operating this equipment in hazardous locations: Informations sur l’utilisation de cet équipement en environnements dangereux : Products marked “CL I, DIV 2, GP A, B, C, D” are suitable for use in Class I Division 2 Groups A, B, C, D, Hazardous Locations and nonhazardous locations only.
PAGE 140
138 Class I, Division 2, Group A, B, C, D Hazardous Locations Statement Notes: Publication 1794-6.5.
PAGE 141
Index A adapter input status word, 5–1, 6–2 analog mapping 1794-IF2XOF2I, 5–13 1794-IF4I, 5–3 1794-OF4I, 5–8 analog modules, types, 1–2 B bit/word description 4 output analog module, 1794-OF4I, 5–10 analog combo module, 1794-IF2XOF2I, 5– 16 block transfer, 1794-IF4I, 5–5 block transfer read 1794-IF2XOF2I, 4–17, 6–15 1794-IF4I, 4–6, 6–5 1794-OF4I, 4–11, 6–10 block transfer write 1794-IF2XOF2I, 4–19 1794-IF4I, 4–7 1794-OF4I, 4–13 block transfer read, 1–2 write, 1–2 block transfer programming, 3–1 block trans
PAGE 142
140 Index input filter selection, 1794-IF2XOF2I, 4–16 input mode, configuration, 1794-IF4I, 4–9 input ranges, 4–2 program selectable, 1–2 input status word, 5–2, 6–2 input update rate, 1794-IF2XOF2I, 4–16 input/output wiring, examples using a 1794-TB3, 2–14 interval, real time sample, 4–3 K keyswitch positions, 2–8 M mapping 1794-IF2XOF2I, 5–13 1794-IF4I, 5–3 1794-OF4I, 5–8 example, 6–2 explanation, 6–2 mapping data 1794-IF2XOF2I, 4–15 1794-IF4I, 4–5 1794-OF4I, 4–10 memory map – read 1794-IF2XOF2I, 5–13
PAGE 143
How Are We Doing? Your comments on our technical publications will help us serve you better in the future. Thank you for taking the time to provide us feedback. You can complete this form and mail (or fax) it back to us or email us at RADocumentComments@ra.rockwell.com. Pub. Title/Type FLEX I/O Isolated Analog Modules Cat. No. 1794-IF4I, -OF4I, IF2XOF2I, Pub. No. -IF4IXT, -IF4ICFXT, -OF4IXT, IF2XOF2IXT 1794-6.5.8 Pub. Date January 2010 Part No. Please complete the sections below.
PAGE 144
PLEASE FASTEN HERE (DO NOT STAPLE) PLEASE FOLD HERE NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES BUSINESS REPLY MAIL FIRST-CLASS MAIL PERMIT NO.
PAGE 145
PAGE 146
PAGE 147
Rockwell Automation Support Rockwell Automation provides technical information on the Web to assist you in using its products. At http://support.rockwellautomation.com, you can find technical manuals, a knowledge base of FAQs, technical and application notes, sample code and links to software service packs, and a MySupport feature that you can customize to make the best use of these tools.