NetDAQ Users Manual
Table Of Contents
- 2640A/2645A NetDAQ Users Manual
- 1. Overview
- 2. Preparing for Operation
- Introduction
- Instrument Preparation
- Unpacking and Inspecting the Instrument
- Positioning and Rack Mounting
- Connecting to a Power Source and Grounding
- Universal Input Module Connections
- Digital I/O Connections
- Alarm/Trigger I/O Connections
- External Trigger Wiring for a Group Instrument
- Controls and Indicators
- Front Panel Operating Procedures
- Power-On Options
- Displaying a Monitor Channel
- Displaying the Digital I/O Status
- Displaying the Totalizer Status
- Reviewing and Setting the Base Channel Number
- Reviewing and Setting the Line Frequency
- Reviewing and Setting the Network Type
- Reviewing and Setting the General Network Socket Port
- Reviewing and Setting the General Network IP Address
- Reviewing and Setting the Subnet Mask and Default Gateway
- Viewing the Instrument Ethernet Address
- Host Computer and Network Preparation
- Testing and Troubleshooting
- 3. Configuring NetDAQ Logger for Windows
- Introduction
- Configuring Network Communications
- Configuring the Current Setup
- Setup Files
- Configuring an Instrument
- Configuring Channels
- Configuring Mx+B Scaling From a File
- Entering an Instrument's Description
- Copying a Channels Configuration
- Default Configuration Settings
- Using Configuration Lockout
- Saving an Instrument's Configuration as a Text File
- Configuring the netdaq.ini File
- 4. Operating NetDAQ Logger for
- 5. Using Trend Link for Fluke
- Introduction
- Getting the Right Look for Your Trend Link Chart
- 6. Maintenance
- Introduction
- Self-Test Diagnostics and Error Codes
- Cleaning
- Fuse Replacement
- Performance Test
- Configuring the Performance Test Setup
- Initializing the Performance Test Setup
- Accuracy Performance Tests
- Volts DC Accuracy Test (2640A)
- Volts DC Accuracy Test (2645A)
- Volts AC Accuracy Test
- Frequency Accuracy Test
- Analog Channel Integrity Test
- Computed Channel Integrity Test
- Thermocouple Temperature Accuracy Test
- Open Thermocouple Response Test
- 2-Wire Resistance Accuracy Test (2640A)
- 2-Wire Resistance Accuracy Test (2645A)
- 4-Wire Resistance Accuracy Test (2640A)
- 4-Wire Resistance Accuracy Test (2645A)
- RTD Temperature Accuracy Test (Resistance) (2640A)
- RTD Temperature Accuracy Test (Resistance) (2645A)
- RTD Temperature Accuracy Test (DIN/IEC 751 RTD)
- Digital Input/Output Tests
- Totalizer Tests
- Master Alarm Output Test
- Trigger Input Test
- Trigger Output Test
- Calibration
- Variations in the Display
- Service
- Replacement Parts
- Appendices
- A. Specifications
- Introduction
- 2640A/2645A Combined Specifications
- 2640A Specifications
- 2640A DC Voltage Measurement Specifications
- 2640A AC Voltage Measurement Specifications
- 2640A 4-Wire Resistance Measurement Specifications
- 2640A 2-Wire Resistance Measurement Specifications
- 2640A RTD's 4-Wire, per ITS-1990 Measurement Specifications
- 2640A RTD's 2-Wire per ITS-1990 Measurement Specifications
- 2640A Thermocouple per ITS-1990 Measurement Specifications
- 2640A Frequency Measurement Specifications
- 2645A Specifications
- 2645A DC Voltage Measurement Specifications
- 2645A AC Voltage Measurement Specifications
- 2645A 4-Wire Resistance Measurement Specifications
- 2645A 2-Wire Resistance Measurement Specifications
- 2645A 4-Wire RTD per ITS-1990 Measurement Specifications
- 2645A Thermocouple per ITS-1990 Measurement Specifications
- 2645A Frequency Measurement Specifications
- B. Noise, Shielding, and Crosstalk Considerations
- C. True-RMS Measurements
- D. RTD Linearization
- E. Computed Channel Equations
- F. Data File Format
- G. Dynamic Data Exchange (DDE)
- H. Ethernet Cabling
- I. Network Considerations
- J. Error Messages & Exception Conditions
- K. Fluke Service Centers
- A. Specifications
- Index
- Instrument Parameter Record (Isolated Network)
- Instrument Parameter Record (General Network)
- General Network Parameter Record
- Host Computer General Network Parameter Record
Network Considerations
Troubleshooting Information
I
I-17
NetDAQ instrument and the PC default gateway addresses to make sure they
are set correctly.
Check all network wiring. Make sure that 10Base2 terminators are placed at
the two open ends of the coax. Make sure that there is no more than one
terminator on each end (some network repeaters, bridges, and routers have
termination built into the unit.)
In a 10Base2 network, make sure that the collision indicator on the
instruments (amber LED) is not lighting. If the collision indicator lights often,
check all wiring for possible sources of impedance mismatch, missing
terminators, broken insulation, metal parts touching each other (i.e. the Tee
touching another connector on the PC), or other wiring problems.
In a 10BaseT network, make sure that the link indicator (same amber LED) is
lit continuously. If it is not, make sure that connection to the hub is correct
and that the hub port is active.
If you have replaced an instrument with another with the same IP address
(same BCN in the isolated network mode), you must reboot your PC. The
TCP/IP software builds a table of the relationship between an instrument’s IP
address and its Ethernet address. If you attach a new instrument to the network
with an IP address that has been previously used, the relationship between the
IP and Ethernet address will be wrong, causing communication with that
instrument to fail. Rebooting the PC clears the IP/Ethernet address
relationship table (the ARP table).
Make sure that there is only one TCP/IP stack software package running on
this PC.
4. Instrument to PC communication starts OK, but there are frequent
communication interruptions reported.
On a general network that is heavily loaded or if there are lots of routers or
gateways between the host and the instrument, the communication time-out
value may need to be increased. Edit the CommTimeout parameter in the
netdaq.ini file (value is seconds) to increase the timeout up to 1000
seconds.
There may be times on a very heavily loaded general network where it is
impossible to maintain high enough speed communication with the instrument
to avoid communication interruptions. In this case, consider moving the
instrument to an isolated network or a different subnet.
5. NetDAQ Logger can not keep up with the scan rate selected in the
instruments. This is indicated by the count of the number of scans in the
instrument increasing continually, to the maximum count, during a data
acquisition run. Once the maximum count is reached, an error message is
displayed by the NetDAQ Logger software indicating that scans are being lost.