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Siemens 6AG1211-1BE31-4XB0 — PLCs (Programmable Logic Controllers)

Siemens 6AG1211-1BE31-4XB0 S7-1200 CPU, 1 MB Memory

MPN6AG1211-1BE31-4XB0

Siemens S7-1200 CPU 1211C, 6AG1211-1BE31-4XB0, compact PLC with 1 Mbyte integrated memory, 24 VDC supply (20.4 to 28.8 V), 1024 byte input/output address space, PROFINET interface, operating range -40 to 70 °C.

Siemens 6AG1211-1BE31-4XB0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6AG1211-1BE31-4XB0 — I/O
ParameterValue
Digital inputs6; Integrated
Digital outputs4; Relays
ExpandableNo
Input data area1 024 byte
Output data area1 024 byte
6AG1211-1BE31-4XB0 — 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
6AG1211-1BE31-4XB0 — Programming
ParameterValue
Programming language: FBDYes
Programming language: LADYes
Programming language: SCLYes
6AG1211-1BE31-4XB0 — Electrical
ParameterValue
Rated value (DC)24 V
Current consumption (rated)60 mA at 120 V AC; 30 mA at 240 V AC
Power loss (typ.)10 W
Short-circuit protectionNo; to be provided externally
6AG1211-1BE31-4XB0 — Environmental
ParameterValue
Installation altitude, max.2 000 m
Temperature, min.-40 °C
Temperature, max.70 °C
Operating temperature, min. (horizontal mounting)-20 °C; = Tmin (incl. condensation/frost); start-up @ 0 °C
Operating temperature, max. (horizontal mounting)60 °C; = Tmax
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
6AG1211-1BE31-4XB0 — Mechanical
ParameterValue
Width90 mm
Height100 mm
Depth75 mm
Weight (approx.)420 g
6AG1211-1BE31-4XB0 — Communication
ParameterValue
Interface typePROFINET

Product details

Compact CPU with wide-temperature rating

The Siemens 6AG1211-1BE31-4XB0 is a S7-1200 CPU 1211C with 1 Mbyte integrated work memory, designed for control cabinets where the standard 0 to 55 °C range is not enough.

Memory, I/O, and fieldbus profile

Integrated work memory is 1 Mbyte, with a bit-memory address area limited to 4 kbyte. The CPU supports 1024 byte of input and 1024 byte of output address space — enough for a compact machine with a few distributed I/O racks. The onboard PROFINET interface can operate as both client and server, with support for UDP, TCP/IP, and MODBUS TCP. It does not support PROFIsafe — if you need safety over PROFINET, this CPU is not the right pick. Programming languages include LAD, FBD, and SCL. The CPU also has a built-in PID controller and supports AS-Interface via an external CM.

Physical fit and supply

Dimensions are 90 mm wide, 100 mm high, and 75 mm deep — the same footprint as the standard S7-1200 CPU 1211C. The CPU is not expandable — no additional signal modules can be added to this base unit. All I/O is fixed at the onboard count.

Frequently asked questions

Is 6AG1211-1BE31-4XB0 a direct replacement for 6ES7211-1BE31-0XB0?

The 6AG1211-1BE31-4XB0 is the SIPLUS extreme variant of the standard S7-1200 CPU 1211C. It shares the same form factor, memory, and I/O configuration as the 6ES7211-1BE31-0XB0 but is qualified for -40 to 70 °C and conformal coated. It is a functional replacement if your application needs the wider temperature range or coated board.

MPN
6AG1211-1BE31-4XB0