Spectrum Controls 1746sc-CTR4 - Manual (Page 25)

Chapter 3: Things To Consider Before Using Your Module 25
Input Response
When a counter slot is disabled, the counter module continues to update
its input image table. However, the SLC processor does not read input
from a module that is disabled. Therefore, when the processor disables
the counter module slot, the module inputs appearing in the processor
table is not read. When the processor re-enables the module slot, the
current state of the module inputs are read by the processor during the
subsequent scan.
Output response
The SLC processor may change the counter module output data
(configuration) as it appears in the processor output image. However,
this data is not transferred to the counter module. The outputs are held in
their last state. When the slot is re-enabled, the data in the processor
image is transferred to the counter module.