Eliminated from:PLC Designer V3.6
Behaviour of the new version:
With three/four wire technology, the unused channel is automatically deactivated. In this way, the value measured by the I/O module is output correctly.
What happens?
The red status LED of two channels is on. The max. value is output at these two channels.
When does the problem occur?
The response described before occurs if in case of the three/four wire technology the channel which is not used is still active, i.e. has not been deactivated (channel function 255 (FFhex)).
Which products are affected?
PLC Designer V3.0 and higher
EPM-S404 (4 analog inputs for resistance measurements of the I/O system 1000)
Possible diagnostics?
None
Short-term measures/recommendations?
Deactivate the unused channel with three/four wire technology.
Evaluation:
With the three/four wire technology the I/O module indicates the max. value if the unused channel has not been deactivated.
