Signaling Contact - Siemens SIMATIC NET SCALANCE XCM-100 Operating Instructions Manual

Contact
L2
M2
7.7

Signaling contact

The signaling contact is connected to a 2-pin plug-in terminal block. The signaling contact
(optical relay contact) is a floating switch with which error/fault states can be signaled by
breaking the contact.
NOTICE
Damage due to voltage being too high
The signaling contact can be subjected to a maximum load of 100 mA (Safety Extra Low Voltage
SELV, 24 V DC).
Higher voltages or currents can damage the device!
Information on the signaling contact
• The following errors/faults can be signaled by the signaling contact:
– The failure of a link on one of the two monitored ports.
– The failure of one of the two redundant power supplies.
• The connection or disconnection of a communication node on an unmonitored port does not
lead to an error message.
• The signaling contact remains activated until the error/fault is eliminated or until the current
status is applied as the new stepoint state using the SELECT/SET button.
• When the device is turned off, the signaling contact is always activated (open).
SCALANCE XCM-100 Media Converter
Operating Instructions, 07/2022, C79000-G8976-C659-01
Assignment
24 V DC/AC
Ground
Grounding
Connecting
7.7 Signaling contact
45