Siemens SIMATIC S7-1200 System Manual page 1389

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Table of Contents

Technical data

Switching delay (Qa.4 to Qa.5)

Maximum relay switching frequency

Pulse Train Output rate

Lifetime mechanical (no load)

Lifetime contacts at rated load

Behavior on RUN to STOP

Number of outputs on simultaneously 3 (no adjacent points) at 60 °C horizontal or 50 °C vertical

Cable length (meters)

Relay group-to-group isolation separates line voltage from SELV/PELV and separates different phases up to 250 V AC

line to ground.

For CPU models with relay outputs, you must install a digital signal board (SB) to use the pulse outputs.

Depending on your pulse receiver and cable, an additional load resistor (at least 10% of rated current) may improve

pulse signal quality and noise immunity.

S7-1200 Programmable controller

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

CPU 1212C AC/DC/Relay

and DC/DC/Relay

Not recommended

10,000,000 open/close cycles

100,000 open/close cycles

Last value or substitute value

(default value 0)

6 at 55 °C horizontal, or 45 °C vertical

500 m shielded,

150 m unshielded

Technical specifications

A.5 CPU 1212C

5 μs max., off to on

20 μs max., on to off

100 kHz (Qa.0 to Qa.3)

20 kHz (Qa.4 to Qa.5)

Last value or substitute value (default