Siemens SIMATIC TDC System Manual page 176

Interface module
7.1 Interface module SB10
Green LED
The voltage supply on SIMATIC TDC side is indicated by a green LED (P).
Red LED
The supply voltage on SIMATIC TDC side (1P, 1M) is short-circuited (fault).
Test socket
Voltages 1P and 1M can be used via the double test socket (G; +) to simulate an input signal
for SIMATIC TDC.
+ (1P of X3)
G (1M of X3)
Explosion hazard
It is not allowed to use the X5 test sockets in potentially explosive environments.
Note
When wiring the supply voltage, observe the "Installation and EMC Directives" chapter in the
User Manual.
176
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Double test socket X5
WARNING
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Industry Automation
Voltage
+24 V
0 V
System Manual, 08/2017, A5E01114865-AL
SIMATIC TDC hardware
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