Interface module
7.4 Interface module SB70
SIMATIC TDC hardware
System Manual, 08/2017, A5E01114865-AL
197
Interface module SB70
Article number
6DD1681-0AG2
Interface module SB70 is used to adapt eight digital output signals from SIMATIC TDC to the
signal level of the plant by means of relay circuits.
The voltage of the output signal may amount up to max. 120 V DC or AC.
Cable SC62 is used to connect the interface module to the SIMATIC TDC components (for
further information, refer to the documentation for the SIMATIC TDC components).
● Enclosure for snap-on mounting to rails
● Ribbon cable connector (X1):
– 8 pins for digital inputs
– 2 pins for 1P, 1M
● Connector (X2), 2 x 12-pole
– 8 terminals for the NO contact
– 8 terminals for the NC contact
– 8 terminals for the center contact
● 1 terminal pair X3: 1P, 1M (voltage on SIMATIC TDC side)
● Double test socket X5: 1P(+), 1M(G)
● LED displays for diagnostics
● Relays for the electrical isolation of inputs and outputs
● PTC thermistor as line protection downstream of the voltage supply on SIMATIC side
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