Product Introduction
With 75 KB program/data memory and integrated I/O, the Siemens 6ES7212-1HE40-0XB0 provides a compact yet powerful solution for small to medium automation tasks. Part of the SIMATIC S7-1200 family, this CPU 1212C module combines 8 digital inputs, 6 relay outputs, and 2 analog inputs in a single unit, reducing wiring and component count.
Technical Specifications
The table below lists key parameters derived from the datasheet.
| Parameter |
Value |
| On-board digital inputs |
8 DI 24V DC |
| On-board digital outputs |
6 DO relay 2A |
| On-board analog inputs |
2 AI 0-10V DC |
| Power supply voltage |
DC 20.4 – 28.8V |
| Program/data memory |
75 KB (work memory 100 KB, retentive 2 MB) |
| Power consumption |
9 W |
| Net weight |
0.686 lb (0.78 lb including packaging) |
| Country of origin |
Germany |
| RoHS compliance |
Since 12/12/2013 |
Industry Applications
The Siemens 6ES7212-1HE40-0XB0 is designed for applications requiring a compact PLC with integrated I/O. Typical uses include conveyor control, packaging machines, and building automation. Its relay outputs handle inductive loads up to 2A, making it suitable for motor starters and valve actuators. The analog inputs allow monitoring of sensors such as pressure transmitters or temperature probes. By integrating I/O, this module reduces overall system cost and footprint.
Compatibility and Integration
The 6ES7212-1HE40-0XB0 features a PROFINET interface (RJ45) for high-speed communication up to 100 Mbit/s. It supports PROFINET IO, OPC UA, MODBUS TCP, and S7 communication. The module can be expanded with signal modules (SM) and communication modules (CM). It is fully programmable with TIA Portal V13 SP1 or higher. For safety applications, PROFIsafe is supported via additional hardware.
Maintenance and Reliability
This Siemens 6ES7212-1HE40-0XB0 module is rated for industrial environments with an operating temperature range of -20°C to 60°C (up to 50°C with vertical mounting). It meets IP20 protection and passes EMC immunity tests including IEC 61000-4-2 (ESD 8 kV air discharge, 6 kV contact). The module has a typical runtime of 480 hours without major maintenance. Its compact design and low power dissipation (9 W) ensure long service life.
Selection Guide and Purchasing Advice
Before ordering the Siemens 6ES7212-1HE40-0XB0, verify that your system power supply provides DC 24V (20.4–28.8V). Ensure you have TIA Portal V13 SP1 or later for programming. For expanded I/O, select appropriate signal modules. For reliable sourcing, contact ubest101 (visit ubest101.myshopify.com) for genuine Siemens modules with fast shipping.