About The Procedure; Calibration Logic - Allen-Bradley B Series User Manual

About the Procedure

Publication 1746-6.16 – January 1999
Channel Calibration
This appendix shows you how to calibrate the module's input channels.
The purpose of the procedure is to store a pair of calibration values in
EEPROM for each channel to set channel accuracy at 0.05% of full range
regardless of channel circuit tolerances. The module is designed so you can
calibrate its input channels individually or in groups. The thermocouple/mV
operation of all channels is suspended during calibration.
With your programming terminal, you will enter calibration codes in word 5
of the configuration file and read status in words 4 and 5 of the status file. A
rung of ladder logic copies calibration codes into the output image table for
transfer to the module, and another rung copies calibration status from the
module (input image table) into the data table. You perform calibration with
the SLC processor in run mode. For more information on addressing
calibration words, refer to chapter 4.

Calibration Logic

Before starting the procedure, enter the following calibration rungs into
processor memory:
Copy Calibration Codes to the Module
Copy Calibration Status into the Data Table
Allen-Bradley
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