Program memory modules / Interface modules
8-22 Hardware - SIMADYN D
Edition 04.2011
8.6 Interface module SB61
6DD1681-0EB3
8 binary DC signals are adapted to the signal level of SIMADYN D /
SIMATIC TDC / S7-400 FM 458- components, electrically isolated
(floating) using the SB61 interface module.
• housing which can be snapped onto mounting rails
• ribbon cable connector (X1):
− 8 pins for binary outputs
− 2 pins for 1P, 1M
• connector (X2), 2x 12 pin:
− 8 terminals for 24 V binary inputs
− 8 terminals for 48 V binary inputs
− 8 terminals for the reference point
• 1 terminal pair X3: 1P,1M (SIMADYN D-side power supply)
• 1 terminal pair X4: 2P, 2M (plant/system-side power supply)
• plug connector for the short-circuit connector
• double test socket X5: 2P (+), 2M (G)
• LED displays for diagnostics
• optocoupler to provide electrical isolation between the input and
output
The SIMADYN D-side power supply is connected at terminal X3:
Terminal X3 Voltage SIMADYN D side
1P
1M
+24 V
0 V
To connect the power supply use accessory SM11 power supply
connector for interface modules (Order No. 6DD1680-0BB0)
The maximum conductor cross section is 2,5 mm².
The SIMADYN D power supply is indicated using a green LED (P).
The SIMADYN D power supply (1P, 1M) is short-circuited (fault
condition).
Order No.
Description
Module design
Power supply on
the SIMADYN D
side
Green LED
Red LED
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