Led "Module Status - Pilz PSS Series Hardware Manual

LEDs for operating status and errors

LED "module status"

The LED "module status" displays the module's operating status. It also
signals errors.
LED "module status"
LED off
LED red
LED flashing red
LED green
LED flashing green
INFORMATION
Further information can be found in the ControlNet Specification (from
Version 2.0, 03/1998), table 10-5.
PSS(1) ControlNet Adapter - Hardware Manual
Description
No supply voltage applied or module not ready
for bus communication
Self-check (after power-up) or
major internal error (cannot be removed)
Communication error
Operating mode
Module operating error-free
Module not active (programming mode),
Waiting for connection structure
5-5