Trouble With The Communication - Festo FED-40 Manual

4 Getting Started

4.2.2 Trouble with the communication

4-8
If there are problems in the communication between FED and
PLC, the following diagnosis tools are available.
Diagnosis resource
Communication-LED
System Menu
Thereby the communication status can have the following
values:
Communication status
COMM ON
COMM OFF
COMM ERR
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This LED is highlighted when
the communication is
working properly and starts
to flash, if an error occurs.
Communication status and
an error code are displayed
in the System Menu.
Value
Communication OK
Communication not active
Communication Error
Festo FED-... en 1107g