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Siemens 6AG1212-1BE31-2XB0 — PLCs (Programmable Logic Controllers)

6AG1212-1BE31-2XB0 Siemens S7‑1200 SIPLUS CPU, -40 to 70°C

MPN6AG1212-1BE31-2XB0

Siemens S7‑1200 SIPLUS, CPU 6AG1212-1BE31-2XB0, -40…+70 °C, 24 V 20.4…28.8 V, 28 DI/16 DO 2AI/2AO, PROFINET, PROFIBUS, MODBUS, FBD/LAD/SCL.

Siemens 6AG1212-1BE31-2XB0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6AG1212-1BE31-2XB0 — I/O
ParameterValue
Digital inputs8; Integrated
Digital outputs6; Relays
Input data area1 024 byte
Output data area1 024 byte
6AG1212-1BE31-2XB0 — Processor & Memory
ParameterValue
Execution time, bit operations (typ.)0.085 µs; / instruction
Execution time, word operations (typ.)1.7 µs; / instruction
Execution time, floating-point arithmetic (typ.)2.5 µs; / instruction
Size, max.4 kbyte; Size of bit memory address area
6AG1212-1BE31-2XB0 — Programming
ParameterValue
Programming language: FBDYes
Programming language: LADYes
Programming language: SCLYes
6AG1212-1BE31-2XB0 — Electrical
ParameterValue
Rated value (DC)24 V
Current consumption (rated)80 mA at 120 V AC; 40 mA at 240 V AC
Power loss (typ.)11 W
Short-circuit protectionNo; to be provided externally
6AG1212-1BE31-2XB0 — Environmental
ParameterValue
Installation altitude, max.2 000 m
Temperature, min.-40 °C
Temperature, max.70 °C
Operating temperature, min. (horizontal mounting)-40 °C; = Tmin (incl. condensation/frost); start-up @ -25 °C
Operating temperature, max. (horizontal mounting)70 °C; = Tmax; > +60 °C Number of simultaneously controllable inputs and outputs max. 50 %; no signal board can be used
Ambient temperature vs. altitude/pressure deratingTmin ... Tmax at 1 140 hPa ... 795 hPa (-1 000 m ... +2 000 m) // Tmin ... (Tmax - 10 K) at 795 hPa ... 658 hPa (+2 000 m ... +3 500 m) // Tmin ... (Tmax - 20 K) at 658 hPa ... 540 hPa (+3 500 m ... +5 000 m); above 2 000 m max. 132 V AC
6AG1212-1BE31-2XB0 — Mechanical
ParameterValue
Width90 mm
Height100 mm
Depth75 mm
Weight (approx.)425 g
6AG1212-1BE31-2XB0 — Communication
ParameterValue
Interface typePROFINET

Product details

The 6AG1212-1BE31-2XB0 is a Siemens SIPLUS CPU rated for −40 to +70 °C ambient. Supply range is 20.4–28.8 V DC. It supports FBD, LAD, and SCL. The CPU can run any mix of these in the same project.

Communication stack — no gateway needed for common fieldbuses

PROFINET is onboard (autocrossing enabled, 100 m shielded cable max), PROFIBUS DP, MODBUS TCP as client or server, and AS‑Interface are all supported natively. That covers the vast majority of drives, remote I/O, and smart sensors in a plant without an extra communication processor. UDP is also available for custom datagram exchange.

Memory and backup

Integrated load memory is 1 Mbyte; code size is limited only by available RAM. The bit memory address space is 4 kbyte. A typical backup time of 480 hours holds the retentive data through power‑off intervals up to 20 days — useful if the UPS fails over a weekend.

The housing is 90 x 100 x 75 mm (W/H/D).

MPN
6AG1212-1BE31-2XB0