LEDs
Table 7-2
LEDs of the IM 463-2
LED
Meaning
EXTF LED (red)
Lights up in the event of an external fault. Line 1 or line 2 has a fault
(power supply failed in the EU; terminating connector missing; wire break, or inter‐
face selector switch wrongly set).
C1 LED (green)
Line 1 (via front connector X1, connection 1) is correct.
C2 LED (green)
Line 2 (via front connector X2, connection 2) is correct.
Front connectors
X1 and X2
Connector (output) for line 1 and line 2
X1 = upper front connector; X2 = lower front connector
Interface selector switch
Table 7-3
Switch position: Interface selector of the IM 463-2
Switch setting
Meaning
C1 ON
You use only interface C1.
C2 ON
You use only interface C2.
C1, C2 ON
You use both interfaces.
C1, C2 OFF
You use neither of the two interfaces.
You do not want to operate an S5 EU at present.
Cable length selector switch
Table 7-4
Switch position: Cable length selector of the IM 463-2
Switch setting
Meaning
100
Cable length 1 to 100 m
250
Cable length 100 to 250 m
450
Cable length 250 to 450 m
600
Cable length 450 to 600 m
WARNING
Danger of data loss.
Changing the setting of the interface selector switch and the cable length selector switch in
RUN mode can result in loss of data.
Change the settings of these switches only in STOP mode of the CPU.
S5 interface IM 463-2
7.3 Operator controls and indicators
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08
349