Within the SIMATIC ET 200 range, ET 200M represents one of the main series of distributed I/O systems for process control applications with SIMATIC PCS 7.

The ET 200M I/O system offers a comprehensive range of I/O modules of S7‑300 design, including ones with special I&C functions:

• Standard analog and digital modules
• Redundant I/O modules
• I/O modules with enhanced diagnostics capability
• Ex I/O modules
• Controller and counter modules
• HART modules
• F-modules for safety-related applications

When using active bus modules, faulty I/O modules can be replaced while the plant is in operation (RUN) without influencing adjacent modules (hot swapping function).

The following actions are possible with the automation system in RUN:

• Adding new modules to the station
• Re-configuration of modules
• Addition of ET 200M stations
• Configuration of connected HART field devices with SIMATIC PDM

Note:

Apart from these selected modules, it is also possible to use - with limitations in functions - all other I/O modules from the current range of S7‑300 signal modules.