Differences for each channel type – Rockwell Automation 1756-IF4FXOF2F ControlLogix High-speed Analog I/O Module User Manual
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Rockwell Automation Publication 1756-UM005B-EN-P - January 2013
Chapter 6
Calibrate the Module
Differences for Each
Channel Type
The procedures for calibrating input and output channels on the ControlLogix
high-speed analog I/O module vary slightly:
•
For input channels, you use a voltage calibrator to send a signal to the
module to calibrate it.
•
For output channels, you use a digital multimeter (DMM) to measure the
signal the module is sending out.
See the recommended instruments to use for each channel below.
You must be online to calibrate your high-speed analog I/O module.
When you are online, you can choose either Program or Run Mode as your
program state during calibration. We recommend that you change your controller
to Program mode before beginning calibration.
Channel Type
Recommended Instrument Ranges
Input
0…10.00V source ±500
μ
V voltage
Output
DMM better than 0.3 mV or 0.6
μ
A
IMPORTANT
Before beginning calibration, make sure the module is not actively controlling
a process. The module freezes the state of each channel and does not update
the controller with new data until after calibration ends. This could be
hazardous if active control were attempted during calibration.
Use this pull-down
menu to go online.
Use this pull-down menu to
change to Program Mode.