Siemens SIMATIC S7-1200 System Manual page 1433

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Digital outputs

Technical data

Number of outputs

Type: Solid state - MOSFET

(sourcing output)

Voltage range

Logic 1 signal at max. current

Logic 0 signal with 10 KΩ load

Current (max.)

ON state resistance

Leakage current per point

Surge current

Overload protection

Isolation (field side to logic)

Isolation groups

Inductive clamp voltage

Switching delay (Qa.4 to Qb.1)

Maximum relay switching frequency

Pulse Train Output rate

Type: Differential output

(RS422/RS485)

Common mode voltage range

Transmitter differential output voltage 2 V min. at RL = 100 Ω, 1.5 V min. at RL = 54 Ω (RS422/RS485 characteristics)

Built-in termination

Driver output impedance

Isolation (field side to logic)

Isolation groups

Switching delay (DQa.0 to DQa.3)

Differential output channel-to-channel

Pulse train output rate

General specifications

(all digital outputs)

Behavior on RUN to STOP

S7-1200 Programmable controller

System Manual, V4.2, 09/2016, A5E02486680-AK

CPU 1217C DC/DC/DC

6: Solid state - MOSFET (sourcing)

4: Differential (RS422/RS485)

Qa.4 to Qb.1

20.4 to 28.8 V DC

20 V DC min.

0.1 V DC max.

8 A for 100 ms max.

707 V DC (type test)

L+ minus 48 V DC, 1 W dissipation

1.0 μs max., off to on

3.0 μs max., on to off

100 kHz max. (Qa.4 to Qb.1)

Qa.0 to Qa.3 (.0+ 0- to .3+ .3-)

-7 V to +12 V, 1 second, 3 VRMS continuous (RS422/RS485 characteristics)

100 Ω between Qa'+' and Qa'-'

100 Ω including termination

707 V DC (type test)

1 MHz (Qa.0 to Qa.3), 2 Hz min.

Last value or substitute value (default value 0)

Technical specifications

A.8 CPU 1217C

Siemens SIMATIC S7-1200 System Manual page 1433

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