Siemens SIMATIC S7-400 Reference Manual page 349
Automation system module
data
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- Installation manual (316 pages) ,
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LEDs
Table 7-2
EXTF LED (red)
C1 LED (green)
C2 LED (green)
Front connectors
X1 and X2
Interface selector switch
Table 7-3
C1 ON
C2 ON
C1, C2 ON
C1, C2 OFF
Cable length selector switch
Table 7-4
100
250
450
600
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.
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08
LEDs of the IM 463-2
LED
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).
Line 1 (via front connector X1, connection 1) is correct.
Line 2 (via front connector X2, connection 2) is correct.
Connector (output) for line 1 and line 2
X1 = upper front connector; X2 = lower front connector
Switch position: Interface selector of the IM 463-2
Switch setting
You use only interface C1.
You use only interface C2.
You use both interfaces.
You use neither of the two interfaces.
You do not want to operate an S5 EU at present.
Switch position: Cable length selector of the IM 463-2
Switch setting
Cable length 1 to 100 m
Cable length 100 to 250 m
Cable length 250 to 450 m
Cable length 450 to 600 m
WARNING
S5 interface IM 463-2
7.3 Operator controls and indicators
Meaning
Meaning
Meaning
349
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