Siemens SIMATIC S7-1200 System Manual page 1416

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Technical specifications

A.7 CPU 1215C

Digital outputs

Technical data

Number of outputs

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

Isolation (group-to-group)

Inductive clamp voltage

Switching delay (Qa.0 to Qa.3)

Switching delay (Qa.4 to Qb.1)

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 •

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.

CPU 1215C AC/DC/Relay

and CPU 1215C DC/DC/Relay

Relay, mechanical

5 to 30 V DC or 5 to 250 V AC

30 W DC / 200 W AC

0.2 Ω max. when new

7 A with contacts closed

1500 V AC (coil to contact)

None (coil to logic)

Not recommended

10,000,000 open/close cycles

100,000 open/close cycles

Last value or substitute value (default value 0)

5 (no adjacent points) at 60 °C horizontal or 50 °C vertical

10 at 55 °C horizontal or 45 °C vertical

500 m shielded, 150 m unshielded

CPU 1215C DC/DC/DC

Solid state - MOSFET (sourcing)

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

5 μs max., off to on

20 μs max., on to off

100 kHz (Qa.0 to Qa.3)

20 kHz (Qa.4 to Qb.1)

S7-1200 Programmable controller

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

Siemens SIMATIC S7-1200 System Manual page 1416

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