Interface module
7.3 Interface module SB61
SIMATIC TDC hardware
188 System Manual, 08/2017, A5E01114865-AL
Interface module SB61
Article number
6DD1681-0EB3
Interface module SB61 is used to adapt 8 digital input signals with electrical isolation to the
signal level of SIMATIC TDC components.
The cables SC62 or SC66 are used to connect the interface modules to the SIMATIC TDC
components (for more information, refer to the SIMATIC TDC Documentation).
● Enclosure for snap-on mounting to rails
● Ribbon cable connector (X1):
– 8 pins for digital outputs
– 2 pins for 1P, 1M
● Connector (X2), 2 x 12-pole:
– 8 terminals for 24 V digital inputs
– 8 terminals for 48 V digital inputs
– 8 terminals for reference potentials
● 1 terminal pair X3: 1P, 1M (voltage supply on SIMATIC TDC side)
● 1 terminal pair X4: 2P, 2M (voltage supply on plant side)
● Pin header for short-circuit plugs
● Double test socket X5:2P (+), 2M (G)
● LED displays for diagnostics
● Optocoupler for electrical isolation between inputs and outputs
Voltage supply on SIMATIC side
The SIMATIC TDC voltage supply is fed to terminal X3:
Voltage on SIMATIC TDC side
1P
+24 V
Connect the cables using accessory kit SM11 "Power supply connector for interface
modules" (article number: 6DD1680-0BB0)
The maximum conductor cross-section at terminal X3 is 2.5 mm².
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