5. Configuration and Function of Internal Memory
5.2. I/O area of A/D converted data
R200 Analog Input Module 2MLF-AV8A, AC8A User's Guide 75
September 2010 Honeywell
Error clear request flag (%UXa.b.176, a: Base No., b: Slot No.)
Whenever a parameter setting error occurs in the A/D module (for example, incorrect
filter constant), the RUN LED starts blinking and the error code would be set in address
No. 22. This error code/status is not automatically cleared, even if parameter setting
errors are rectified. The error status/code is cleared when the CPU provides an ‘error
clear request’ (%UXa.b.176 bit ON) to the module. Once the error status is cleared, RUN
LED returns to steady On status.
The flag ‘error clear request’ should always be used together with %UXa.b for correct
operation as in the below example.
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