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Siemens 6AG1212-1HE40-4XB0 — PLCs (Programmable Logic Controllers)

Siemens 6AG1212-1HE40-4XB0 S7-1200 SIPLUS CPU, -40-70°C

MPN6AG1212-1HE40-4XB0
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Siemens 6AG1212-1HE40-4XB0 SIPLUS S7-1200 CPU, extended temperature range -40 to 70°C, 24 V DC, 1 Mbyte work memory, PROFINET, MODBUS TCP, FBD/LAD/SCL programming.

$735.46Ref. price · indicative, final on quote
Siemens 6AG1212-1HE40-4XB0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6AG1212-1HE40-4XB0 — I/O
ParameterValue
Digital inputs8; Integrated
Digital outputs6; Relays
6AG1212-1HE40-4XB0 — 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.)2.3 µs; / instruction
Size, max.4 kbyte; Size of bit memory address area
6AG1212-1HE40-4XB0 — Programming
ParameterValue
Programming language: FBDYes
Programming language: LADYes
Programming language: SCLYes
6AG1212-1HE40-4XB0 — Electrical
ParameterValue
Rated value (DC)24 V
Current consumption (rated)400 mA; Typical
Permissible range, lower limit (DC)5 V
Permissible range, upper limit (DC)250 V
Power loss (typ.)9 W
6AG1212-1HE40-4XB0 — 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
6AG1212-1HE40-4XB0 — Mechanical
ParameterValue
Width90 mm
Height100 mm
Depth75 mm
Weight (approx.)385 g
6AG1212-1HE40-4XB0 — Communication
ParameterValue
Interface typePROFINET

Product details

CPU for harsh environments

The Siemens 6AG1212-1HE40-4XB0 is a SIPLUS version of the S7-1200 CPU, rated for -40 to 70°C ambient temperature, 24 V DC supply. Integrates 1 Mbyte work memory, PROFINET interface with two-port switch, and support for MODBUS TCP, PROFIBUS (via CM 1243-5), AS-Interface, and web server. Programs in FBD, LAD, SCL, and STL. PID controller onboard, forcing and shared device supported. Backup time 480 h typical.

Panel installation

DIN-rail mount, 90 × 100 × 75 mm (W × H × D). Terminal block accepts 0.2–2.5 mm² wire, spring-cage. Power supply: 24 V DC, L+ minus 4 V DC min. PROFINET ports autocrossing; shield clamp for foil-shielded cable up to 100 m. PROFIBUS connection requires the external CM 1243-5 module occupying the left-side slot. AS-Interface master on board. Memory backup 480 h typical; retain DBs and retentive bits across power loss.

Frequently asked questions

What is the closest functional second-source for the 6AG1212-1HE40-4XB0?

The standard SIMATIC S7-1200 CPU 6ES7212-1HE40-0XB0 is functionally identical except for the extended temperature range. It uses the same housing, connectors, and all software capabilities are the same.

Does this CPU support FBD and LAD programming?

Yes, FBD (Function Block Diagram) and LAD (Ladder Logic) are both supported, along with SCL and STL.

Will the SIPLUS CPU drop into a panel wired for the standard 6ES7212-1HE40-0XB0 without rewiring?

Yes, the SIPLUS variant is a direct mechanical and electrical replacement. Same dimensions, same connector layout, same terminal assignment. No wiring changes needed.

MPN
6AG1212-1HE40-4XB0