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5.3 Modbus LEDs (MB)
LEDs Meaning
SF BF
No connection to a Modbus client
The communication between the gateway and Modbus
client is interrupted.
SF BF
Connection establishment
Time period the system needs to establish a
connection; devices cannot yet communicate with each
other.
SF BF
Connected to the controller
All devices are exchanging data.
SF BF
Configuration error or diagnosis
Read errors from Modbus engineering system.
SF BF
/
Modbus signal function active
SF BF
Error in the Modbus part of the device
An error such as a software error or a licence error has
occurred.