Hardware Manual PCD1.M0160E0 │ Document 27-622
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Version ENG04 │ 2018-08-20
Saia-Burgess Controls AG
Plug-In I/O Module for slot A
Inputs/Outputs (I/O)
4-16
4
LEDs and his Importance
LEDs:
Rx (green)
Tx (yellow)
The LEDs Rx/Tx blink when the module is communicating with the PCD.
●
They can be permantly activated if media mapping is used or
●
Shortly blink with direct access.
Module detection
If the module is not plugged, there is a history entry.
If you need to detect if the module is plugged or not in your program code, you can
use the following function:
If the module has been correctly plugged, the status value is a positive num-
ber and all device information can be read. If the module has not been correctly
plugged or simply not plugged, the returned value is negative.
