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Program Controller SE-707
© 2018 by STANGE Elektronik GmbH
36
Subject to technical modifications
LED
Color
State
Meaning
COM
Duo LED red/green
Green
On
Communication to all Slaves is established.
Green
Blinking (5 Hz)
PROFIBUS is configured, but the bus communication is not yet
released from the application.
Green
Flashing,
acyclic
No configuration or faulty configuration.
Red
Blinking (5 Hz)
Communication to at least one Slave is disconnected.
Red
On
Communication to all Slaves is disconnected or another serious
error has occurred.
Redundant Mode: The active Master was not found.
Off
Off
Device is not switched on or supply voltage is missing.
Table: LED states for the PROFIBUS DP Master protocol
LEDs states
Definition
Blinking (5 Hz)
The indicator turns on and off with a frequency of 5 Hz:
“on” for 100 ms, followed by “off” for 100 ms.
Flashing, acyclic
The indicator turns on and off in irregular intervals.
Table: LED state definitions for the PROFIBUS DP Master protocol