5.5
Signaling contact
Signaling contact
The signaling contact or relay contact is a floating switch with which error/fault states can be
signaled by breaking the contact.
The following errors/faults can be signaled by the signaling contact:
• The loss and the establishment of a link on a monitored port.
• The failure of one of the two redundant power supplies.
Note: Devices of the IRT PRO version do not have a redundant power supply
• The loss of the connection to the controller in PROFINET IO mode.
• The redundancy manager signals an error
• An incompatible C-PLUG was inserted.
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 desired status using the SET button.
When the IE Switch X-200 is turned off, the signaling contact is always activated, i.e. opened.
NOTICE
Load on the signaling contact
The signaling contact can be subjected to a maximum load of 100 mA (safety extra-low
voltage (SELV), 24 VDC).
Connection via 2-pin terminal block
The signaling contact is connected to a 2-pin plug-in terminal block.
The following table shows the pin assignment:
Assignment
F1: Fault contact 1
)
)
SCALANCE X-200, XF-200, X-200IRT
)
)
SCALANCE XF-200IRT
F2: Fault contact 2
Connection via M12 socket
With the X-200 IRT PRO devices and with the X208PRO, the connection is via a 5-pin, b-coded
M12 socket.
Connecting up
5.5 Signaling contact
SCALANCE X-200
Operating Instructions, 11/2021, C79000-G8976-C284-15
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