Detect Active Fieldbus - Siemens SIMATIC 6ES7158-3MU10-0XA0 Hardware Installation And Operating Manual

Product overview

2.5 Detect active fieldbus

2.5 Detect active fieldbus
For exclusive operation on a fieldbus (not MF Shared Device) you can recognize the active
fieldbus by the number of green LEDs on the MF device.
This requires that there are no errors and that the MF device is in cyclic data exchange with
an IO controller/scanner.
LED schematic:
PROFINET
EtherNet/IP
20
RN/NS
Green
Green
Hardware Installation and Operating Manual, 07/2020, A5E50018670-AA
ER/MS
Off
Green
MT/IO
Off
Green
PN/MF Coupler