" ! "
Important User Information Because of the variety of uses for the products described in this publication, those responsible for the application and use of these products must satisfy themselves that all necessary steps have been taken to assure that each application and use meets all performance and safety requirements, including any applicable laws, regulations, codes and standards.
ATTENTION ! Environment and Enclosure This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications (as defined in IEC publication 60664–1), at altitudes up to 2000 meters without derating. This equipment is considered Group 1, Class A industrial equipment according to IEC/CISPR Publication 11.
Preventing Electrostatic Damage ATTENTION This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these guidelines when you handle this equipment. ! • Touch a grounded object to discharge potential • • • • • static. Wear an approved grounding wriststrap. Do not touch connectors or pins on component boards. Do not touch components inside the equipment. If available, use a static–safe workstation.
The information below summarizes the changes to the Remote I/O Adapter User Manual, publication 1794-UM009D–EN–P, since the last release. The series E adapter is capable of recognizing the safe state data for the FLEX Integra analog modules, and allows use of 32 point FLEX I/O modules. You must use a series D or later adapter when using FLEX Integra analog modules in your system.
soc–ii Summary of Changes Publication 1794ĆUM009D-EN-P - April 2004
Preface Using This Manual Preface Objectives Read this preface to familiarize yourself with this manual and to learn how to use it properly and efficiently. Important: You must use a series D or later adapter to IMPORTANT communicate with FLEX Integra analog modules. You must use a series E or later adapter to communicate with 32 point FLEX modules.
P–2 Using This Manual Conventions We use these conventions in this manual: In this manual, we show: Like this: that there is more information about a topic in another chapter in this manual that there is more information about the topic in another manual For Additional Information More For additional information on FLEX I/O systems and modules, refer to the following documents: Catalog Number Publications Voltage 1794 Description Installation Instructions 1794 FLEX I/O Product Data 1794Ć2.
Using This Manual P–3 Publications Catalog Number Voltage 1794ĆOW8 24V dc 8 Relay Output Module 1794Ć5.19 1794ĆIE8 24V dc Selectable Analog 8 Input Module 1794Ć5.6 1794ĆOE4 24V dc Selectable Analog 4 Output Module 1794Ć5.5 1794ĆIE4XOE2 24V dc 4 Input/2 Output Analog Module 1794Ć5.15 1794ĆOF4I 24V dc 4 Output Isolated Analog Module 1794Ć5.37 1794ĆIF4I 24V dc 4 Input Isolated Analog Module 1794Ć5.38 1794ĆIF2XOF2I 24V dc 2 Input/2 Output Isolated Analog Module 1794Ć5.
P–4 Using This Manual Catalog Number Publications Voltage 1794ĆCE1, ĆCE3 1794ĆNM1 Description Installation Instructions Extender Cables 1794Ć5.12 Mounting Kit 1794Ć5.13 1794ĆPS13 24V dc Power Supply 1794Ć5.35 1794ĆPS3 24V dc Power Supply 1794Ć5.71 User Manual FLEX Ex 1797ĆIBN16 See note 16 NAMUR Digital Input Module 1797ĆOB4D See note 4 NI, Ex Source Digital Output Module 1794Ć5.6 1797ĆIE8 See note 8 Selectable Input Module 1794Ć5.
Using This Manual ATTENTION ! P–5 Preventing Electrostatic Discharge This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these guidelines when you handle this equipment: • Touch a grounded object to discharge potential • • • • • WARNING ! static. Wear an approved grounding wriststrap. Do not touch connectors or pins on component boards. Do not touch circuit components inside the equipment.
P–6 Using This Manual Publication 1794ĆUM009D-EN-P - April 2004 This preface gave you information on how to use this manual efficiently. The next chapter introduces you to the remote I/O adapter module.
Table of Contents Overview of FLEX I/O and your Remote I/O Adapter Module Chapter 1 Installing Your Remote I/O Adapter Module Chapter 2 Communicating with FLEX I/O Modules Chapter 3 Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The FLEX I/O System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . How FLEX I/O Modules Communicate with Programmable Controllers Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii Table of Contents Standard Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Standard - 32 Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Compact Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Compact Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Complementary Addressing Mode . . . . . . . . . . . . . . . . . . . . . . . . Complementary Mode - 16Ćpoint . . . . . . . . . . . . . . . . . .
Overview of FLEX I/O and your Remote I/O Adapter Module Chapter Objectives In this chapter, we tell you about: • what the FLEX I/O system is and what it contains • how FLEX I/O modules communicate with programmable controllers • the features of your adapter module The FLEX I/O System Adapter FLEX I/O is a small, modular I/O system for distributed applications that performs all of the functions of rack-based I/O.
1–2 Overview of FLEX I/O and your Remote I/O Adapter Module How FLEX I/O Modules Communicate with Programmable Controllers Data transfer to and from the remote I/O adapter/power supply and discrete I/O modules occurs every flexbus scan. This provides the controller with updated data. The remote I/O adapter/power supply transfers data to the analog I/O module (block transfer write) and from the analog I/O module (block transfer read) using BTW and BTR instructions in your ladder diagram program.
Overview of FLEX I/O and your Remote I/O Adapter Module Hardware Components 1–3 The adapter module consists of the following major components: • • • • • diagnostic indicators reset pushbutton remote I/O wiring connections 24V dc power wiring connections address/group switch assemblies AllenĆBradley Diagnostic Indicators PWR ADAPTER ACTIVE FAULT LOCAL FAULT 24 VDC POWER SUPPLY RIO ADAPTER 1794-ASB Reset Pushbutton 24V dc Common Wiring Connections Address/Group Switches +24V dc Wiring Connection
1–4 Overview of FLEX I/O and your Remote I/O Adapter Module Reset Pushbutton Use the reset pushbutton to reset the adapter module and resume communication when a communication error occurs. (The adapter’s processor restart lockout switch (PRL) must be in the “locked out” position.) If the adapter is not locked out by the PRL switch, it will be automatically reset via special commands sent over the communication link. Important: Do not cycle power to the adapter to clear a fault.
Installing Your Remote I/O Adapter Module Chapter Objectives This chapter describes the procedures for installing your remote I/O adapter module. These include: • power requirements • mounting the remote I/O adapter • setting the module switches ATTENTION ! Environment and Enclosure This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications (as defined in IEC publication 60664–1), at altitudes up to 2000 meters without derating.
2–2 Installing Your Remote I/O Adapter Module Preventing Electrostatic Discharge ATTENTION This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these guidelines when you handle this equipment: • Touch a grounded object to discharge potential static. • Wear an approved grounding wriststrap. • Do not touch connectors or pins on component boards. • Do not touch circuit components inside the equipment.
Installing Your Remote I/O Adapter Module Power Requirements 2–3 The Remote I/O adapter module requires a current of 450mA at 24V dc from an external power supply for flexbus operation. This is sufficient to support the flexbus current requirements of 8 modules. Remember to add this amount to current requirements for other modules using the same 24V supply. Mounting the Remote I/O Adapter The remote I/O adapter module can be DIN rail or wall/panel mounted.
2–4 Installing Your Remote I/O Adapter Module Mounting (or Replacing) the Adapter on an Existing System If you connect or disconnect wiring while the field ATTENTION side power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding. ! 1. Remove the RIO plug-in connector from the front of the adapter. 2. Disconnect any wiring connected to the adjacent terminal base. 3.
Installing Your Remote I/O Adapter Module 2–5 8. With the hook on the terminal base inside the notch on the adapter, and the lip on the rear of the adapter hooked over the DIN rail, press in and down to lock the adapter onto the DIN rail. C If the adapter module does not lock in place, use a screwdriver or similar device to move the locking tab down while pressing the adapter module flush onto the DIN rail and release the locking tab (C) to lock the adapter module in place.
2–6 Installing Your Remote I/O Adapter Module Inches (Millimeters) A 1.4 (35) 2.3 (59) 1.4 (35) 3.7 (94) 0.9 (23) .83 (21) 2.0 (50) 3.2 (80) 3.7 (94) 3.2 (80) 3.4 (87) 1.2 (30) 2.7 (68) 1794 Adapters 3.4H x 2.7W x 2.7D (87H x 68W x 69D) 3.7 (94) 1794 Terminal Base Units 3.7H x 3.7W x 2.7D (94H x 94W x 69D) A = Mounting hole dimensions for optional mounting kit 6. Position the termination base unit up against the adapter and push the female bus connector into the adapter. 7.
Installing Your Remote I/O Adapter Module Wiring 2–7 Connect external wiring to the remote I/O adapter as shown below. AllenĆBradley ADAPTER ACTIVE FAULT PWR LOCAL FAULT 24 VDC POWER SUPPLY RIO ADAPTER 1794-ASB B C COM A 1 SH 2 Termination resistor (if required) 82Ω or 150Ω (refer to your processor documentation for size and usage) D 24V 20131 1. Connect the remote I/O cable to the removable plug-in remote I/O connector.
2–8 Installing Your Remote I/O Adapter Module Setting the Switches The remote I/O adapter module has two 8-position switch assemblies which you set for: • • • • • • • • starting I/O group I/O logical rack number hold inputs addressing modes last chassis communication rate processor restart lockout (PRL) hold last state (outputs) WARNING ! The switch settings on the series E adapter are not the same as on the series A, B, C or D adapter.
Installing Your Remote I/O Adapter Module 2–9 Rack Fault Select Switch (RFS) The rack fault select allows the user to determine what action the adapter takes if communication is lost with one or more I/O modules ATTENTION ! If an I/O module stops responding to the adapter due to a module being removed under power, a problem with the flexbus, or a problem with an I/O module, the adapter declares a Local fault. When RFS is disabled (S2–6 on), module removal and insertion under power (RIUP) is possible.
2–10 Installing Your Remote I/O Adapter Module Communication Rate You set these switches (S2-3 and S2-4) for the desired communication rate (in bits/s). Selections are: 57.6k bits/s 115.2k bits/s 230.4k bits/s Autobaud (used in 32-pt modes) Processor Restart Lockout (PRL) When PRL is disabled (switch S2-2 on), the programmable controller can restart communication with the adapter in the event of a communication fault.
Installing Your Remote I/O Adapter Module 2–11 Starting I/O Group1 S1-8 S1-7 I/O group ON ON 0 (1st quarter) OFF ON 2 (2nd quarter) ON OFF 4 (3rd quarter) OFF OFF 6 (4th quarter) 1 In 32 point mode, starting quarter must be 0 (S1-8 and S1-7 on).
2–12 Installing Your Remote I/O Adapter Module Setting the Mode Selection Switches Set the mode selection switches for the desired mode as follows. 1. Lift the hinged switch cover on the front of the adapter to expose the switches. 2. Set the switches as shown below. 3. Cycle power to the adapter to activate the settings.
Installing Your Remote I/O Adapter Module Setting the Address Switches 2–13 Use the following table to set your address switches. (Refer to page 2–15 to set address switches when in complementary mode.
2–14 Installing Your Remote I/O Adapter Module Rack Number 1747ĆSN PLCĆ5 PLCĆ5/250 S1 Switch Position PLCĆ3 6 5 4 3 2 1 Rack 42 ON OFF ON ON ON OFF Rack 43 OFF OFF ON ON ON OFF Rack 44 ON ON OFF ON ON OFF Rack 45 OFF ON OFF ON ON OFF Rack 46 ON OFF OFF ON ON OFF Rack 47 OFF OFF OFF ON ON OFF Rack 50 ON ON ON OFF ON OFF Rack 51 OFF ON ON OFF ON OFF Rack 52 ON OFF ON OFF ON OFF Rack 53 OFF OFF ON OFF ON OFF Rack 54 ON ON OFF
Installing Your Remote I/O Adapter Module Setting the Address Switches for Complementary I/O 2–15 Use the following table to set your address switches for complementary I/O when using a PLC-5 processor. For all other processors, refer to the programming manual for that specific processor.
2–16 Installing Your Remote I/O Adapter Module Publication 1794ĆUM009D-EN-P - April 2004
Communicating with FLEX I/O Modules Chapter Objectives In this chapter, we tell you about: • • • • • • FLEX I/O Module Data FLEX I/O module data selecting an addressing type selecting an addressing mode determining rack size mapping data into the image tables operating modes There are 2 types of data associated with FLEX I/O modules: input data and output data.
3–2 Communicating with FLEX I/O Modules Addressing I/O The 1794-ASB series E adapter supports 5 different modes of addressing: standard, compact, complementary, standard–32 and complementary–32. For digital modules, the mode of addressing determines what type of data is available to the processor from the module.
Communicating with FLEX I/O Modules 3–3 Complementary • you need full FLEX I/O module • Eight 8 point modules in each chassis • You must configure all modules Standard - 32 • you need full FLEX I/O module • User has access to 2 words of input, 2 • Inefficient I/O image table Complementary - 32 • you need full FLEX I/O module • Eight modules in each chassis equal 2 • All digital I/O modules are functionality, including combination modules (1794ĆIB10XOB6), settable input delay times on
3–4 Communicating with FLEX I/O Modules Digital I/O Modules Input Word Output Word Input Module Example 8 Bits 8 Bits 8 Bits 8 Bits Output Module Example Note: If 32 pt. modules are used in standard mode, only the lower word (16 bits) will be sent to the processor. All 32 bits of the 32-pt combo module are available.
Communicating with FLEX I/O Modules 3–5 8Ćbit Input modules complemented by 8Ćbit output modules Primary Chassis Input Module Example Input Word Output Word 8 Bits 8 Bits 8 Bits 8 Bits Output Module Example 8 Bits 8 Bits 8 Bits 8 Bits Complementary Mode 8Ćpt Density 8 bits of input OR 8 bits of output available Complement Chassis Input Module Example Input Word Output Word 8 Bits 8 Bits Output Module Example 8 Bits 8 Bits 8 Bits 8 Bits 8 Bits 8 Bits Note: If 16Ćpt or 32Ćpt modules are used in
3–6 Communicating with FLEX I/O Modules Standard Addressing Use standard addressing when: • you need full FLEX I/O module functionality, such as delay time selection on input modules, fuse-blown indication on the 1794-OB8EP, etc. • using combination modules, such as the 1794-IB10XOB6 10 in/6 out module In standard mode, each module position equals one I/O group – 1 word of input image and 1 word of output image. If 32-pt input or output modules are used, only the lower 16 bits are available.
Communicating with FLEX I/O Modules Standard - 32 Addressing 3–7 Use standard 32 point addressing when: • you use 32 point modules in your system • you need full FLEX I/O module functionality, such as delay time selection on input modules, fuse-blown indication on the 1794-OB8EP, etc. • using combination modules, such as the 1794-IB16XOB16 16 in/16 out module In standard – 32 mode, each module position equals two I/O groups – 2 words of input image and 2 words of output image.
3–8 Communicating with FLEX I/O Modules Compact Addressing Use compact addressing when: • you are not using combination modules • you are using only digital input, digital output and analog modules • you don’t need all the features of digital FLEX I/O modules (You can only access the input word on an input module, or the output word of an output module. Any status information/configuration information in the corresponding input/output word is not accessible.
Communicating with FLEX I/O Modules 16Ćpoint Compact Addressing Input modules and Output modules in pairs, or analog modules.
3–10 Communicating with FLEX I/O Modules 8Ćpoint Compact Addressing - Digital Modules Input modules and Output modules in the same group.
Communicating with FLEX I/O Modules 3–11 8Ćpoint Compact Addressing - Analog Modules Analog modules in the same group.
3–12 Communicating with FLEX I/O Modules Complementary Addressing Mode Use complementary addressing when: • you are not using combination modules • you don’t need all the features of FLEX I/O modules • you can locate equal numbers of input and output modules in separate chassis • you want more efficient use of the input/output image table Complementary Mode - 16Ćpoint Complementary mode maximizes 2 chassis I/O image table usage when input modules are installed in 1 chassis, and output modules are insta
Communicating with FLEX I/O Modules 3–13 Complementary 16Ćpoint Addressing Example - Up to 16 modules = 1 logical rack 1 I/O Group M0 ASB/E Primary IH M1 IL IB16 CĆM0 ASB/E Comp.
3–14 Communicating with FLEX I/O Modules 8Ćpoint Complementary Addressing Any combination of digital or analog modules. Primary Input Adapter Input Input I/O Group 0 Input Analog I/O Group 1 Analog Input Input I/O Group 2 I/O Group 3 Complementary Output Output Adapter Output Output Empty Empty Output Output Complement of modules in primary chassis, or empty for analog.
Communicating with FLEX I/O Modules Complementary - 32 Addressing 3–15 Use complementary 32 point addressing when: • you use 32 point modules in your system • you need full FLEX I/O module functionality, such as delay time selection on input modules, fuse-blown indication on the 1794-OB8EP, etc. • using combination modules, such as the 1794-IB16XOB16 16 in/16 out module In complementary mode, each module position equals two I/O groups – 2 words of input image and 2 words of output image.
3–16 Communicating with FLEX I/O Modules Mapping Data into the Image Tables After the rack size has been determined by the remote I/O adapter, the data from the modules must be mapped into the data tables. Data associated with digital modules is mapped into the input and output image table. Data transfer to and from the remote I/O adapter and digital modules occurs every flexbus scan. This data is mapped into the input/output image table.
Communicating with FLEX I/O Modules 3–17 • smallest rack size is 1/4, regardless of the mode switch settings Some examples of rack definition are shown below.
3–18 Communicating with FLEX I/O Modules If a rack size offset by the selected quarter results in more than a full rack, the adapter will declare a rack fault and error as indicated. In 32 point mode, the starting quarter should always be 0 (switches S1–8 and S1–7 on). ATTENTION ! Operating Modes Do not use the auto-config feature of 6200 software when using a PLC-3 processor with 1775-S4A or 1775-S4B scanner modules.
Chapter Objectives In this chapter, we tell you: • about the indicators on the module front plate • how to use the indicators for troubleshooting the module Fault Conditions Three conditions can cause the remote I/O adapter to declare a communication fault.
4–2 Troubleshooting Table 4.A Remote I/O System Troubleshooting Guide Local Fault Adapter Fault Adapter Active PWR ACTIVE ADAPTER LOCAL FAULT FAULT Communication States and Module Display Local Fault Adapter Fault Adapter Active Off Off On Off Off Off Off Off Operating State Actions Fault Reset Normal Communications Outputs enabled.
Troubleshooting 4–3 Module Faults Local Fault Adapter Fault Adapter Active Blinking OFF Blinking Processor in PROG/TEST mode Rack Fault Select NOT enabled Blinking Off Blinking Processor in RUN/PROG/TEST Rack Fault Select enabled Fault Condition Actions Fault Reset Module not responding. Possibly module removed under power. Only module removed is affected. Module not responding: Old inputs maintained. Outputs set to to zero. All other modules: Outputs disabled.
4–4 Troubleshooting Publication 1794ĆUM009D-EN-P - April 2004
1794ĆASB Series E Specifications Note: This adapter cannot be used with PLCĆ2 processors This adapter can communicate with FLEX Integra analog modules and 32-point FLEX modules. I/O Capacity 8 modules Power Supply Note: In order to comply with CE Low Voltage Directives, you must use a Safety Extra Low Voltage (SELV) or a Protected Extra Low Voltage (PELV) power supply to power this adapter. Input Voltage Rating 24V dc nominal Input Voltage Range 11.0V to 31.
A–2 Specifications 1794ĆASB Series E Specifications Surge Transient Immunity IEC 61000-4-5 +1kV line-line (DM) and +2kV line-earth (CM) on signal ports Conducted RF Immunity IEC 61000-4-6 10V rms with 1kHz sine wave 80% AM from 150kHz to 80MHz Emissions CISPR 11 Group 1, Class A (with appropriate enclosure) Enclosure Type Rating None (open-style) Remote I/O Cable Belden 9463 or equivalent as specified in publication ICCGĆ2.
Specifications A–3 European Zone 2 Certification This equipment is intended for use in potentially explosive atmospheres as defined by European Union Directive 94/9/CE. The LCIE (Laboratoire Central des Industries Electriques) certifies that this equipment has been found to comply with the Essential Health and Safety Requirements relating to the design and construction of Category 3 equipment intended for use in potentially explosive atmospheres, given in Annex II to this Directive.
A–4 Specifications Publication 1794ĆĆUM009D-EN-P - April 2004
Appendix B Differences Between Remote I/O Adapter Series A, B, C, D and E Major differences between adapter series are indicated in the following table. Series A Series B Processor compatibility Can be used with PLCĆ2 processors Standard Mode - Analog module removal under power Block transfers continue when a block transfer module is removed from its base.
B–2 Differences Between Remote I/O Adapter Series A, B, C, D and E Publication 1794ĆĆUM009D-EN-P - April 2004
Appendix C Safety Approvals The following information applies when operating this equipment in hazardous locations: Products marked CL I, DIV 2, GP A, B, C, D" are suitable for use in Class I Division 2 Groups A, B, C, and D Hazardous Locations and nonhazardous locations only. Each product is supplied with markings on the rating nameplate indicating the hazardous location temperature code.
C–2 Safety Approvals Publication 1794ĆĆUM009D-EN-P - April 2004
Index A adapter switch settings, 2-8 L last chassis switch, 2-9 addressing, 32 point standard, 3-7, 3-15 addressing mode selection switches, 2-9 addressing modes, 3-2 B block transfer read, 1-2 write, 1-2 C communication rate switch, 2-10 compact mode, 3-8 complementary addressing mode, 3-12 complementary rack switch settings, 2-15 components, hardware, 1-3 connecting wiring, 2-7 D data table mapping, 3-16 defining racks in Flex I/O, 3-17 determining rack size, 3-16 diagnostic indicators, 1-3 F fault
I–2 Index troubleshooting, fault conditions, 4-1 troubleshooting guide, 4-2 troubleshooting indicators, 4-1 Publication 1794ĆUM009D-EN-P - April 2004
AllenĆBradley Publication Problem Report If you find a problem with our documentation, please complete and return this form. Remote I/O Adapter User Manual Pub. Name Cat. No. 1794ĆASB/E Check Problem(s) Type: Pub. No. 1794ĆUM009D-EN-P Pub. Date Aprio 2004 Part No.
Other Comments PLEASE REMOVE I–2 PLEASE FOLD HERE NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES BUSINESS REPLY MAIL FIRST-CLASS MAIL PERMIT NO.
Publication 1794ĆUM009D-EN-P - April 2004
Publication 1794ĆUM009D-EN-P - April 2004
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