Industrial PLC controller Siemens CPU 1512C-1 PN model 6ES7512-1CK01-0AB0

Technical specifications

Product type designation

CPU 1512C-1 PN

Firmware version

V2.9

Rated value (DC)

24 V

permissible range, lower limit (DC)

19.2 V; 20.4 V DC, for supplying the digital inputs/outputs

permissible range, upper limit (DC)

28.8 V

Number of distributed IO systems

32; A distributed I/O system is characterized not only by the integration of distributed I/O via PROFINET or PROFIBUS communication modules, but also by the connection of I/O via AS-i master modules or links (e.g. IE/PB-Link)

via CM

6; A maximum of 6 CMs/CPs (PROFIBUS, PROFINET, Ethernet) can be inserted in total

on Ethernet via NTP

Yes

for signal "1" permissible range, min.

2 mA

for signal "1" permissible range, max.

0.6 A; 0.12 A with high-speed output, i.e. when using a high-speed output, observe derating; see manual for details

Number of analog inputs

5; 4x for U/I, 1x for R/RTD

Output ripple (relative to output range, bandwidth 0 to 50 kHz), (+/-)

0.02 %

Number of PROFINET interfaces

1

RJ 45 (Ethernet)

Yes; X1

PROFINET IO Controller

Yes

PROFINET IO device

Yes

SIMATIC communication

Yes

Open IE communication

Yes; Optionally also encrypted

PG/OP communication

Yes

Prioritized startup

Yes; Max. 32 PROFINET devices

Number of connectable IO Devices, max.

128; In total, up to 256 distributed I/O devices can be connected via AS-i, PROFIBUS or PROFINET

Updating times

The minimum value of the update time also depends on communication share set for PROFINET IO, on the number of IO devices, and on the quantity of configured user data

Industrial Ethernet status LED

Yes

PROFINET system redundancy (S2)

No

PROFINET system redundancy (R1)

No

S7 communication, as server

Yes

S7 communication, as client

Yes

User data per job, max.

See online help (S7 communication, user data size)

Monitoring the supply voltage

Yes

Monitoring of the supply voltage (PWR-LED)

Yes

PROFINET Security Class

1

Width

110 mm

Height

147 mm

Depth

129 mm

HW functional status

FS03

I&M data

Yes; I&M0 to I&M3

Documents / datasheets

Source reviewed: 2026-10-24

Description

Industrial PLC controller Siemens part number 6ES75121CK010AB0; Rated value (DC): 24 V; permissible range, lower limit (DC): 19.2 V; 20.4 V DC, for supplying the digital inputs/outputs; permissible range, upper limit (DC): 28.8 V. Technical specifications, condition and supply feasibility are checked before ordering.