The Siemens 6ES7331-7TB10-0AB0 is a SIMATIC SM 331 HART analog input module designed for use in the ET 200M distributed I/O system. It provides two analog current inputs (0/4–20 mA) with integrated HART protocol support, enabling both process value acquisition and digital communication with HART-enabled field devices.
Used for acquiring analog process signals from transmitters while simultaneously enabling HART digital communication. Ideal for distributed I/O stations in ET 200M systems across process industries such as chemicals, water treatment, manufacturing, and utilities.
| Analogue inputs configurable | Yes |
| Depth | 120 mm |
| Height | 125 mm |
| Input signal, configurable | Yes |
| Input, current | Yes |
| Number of analogue inputs | 2 |
| Rack-assembly possible | Yes |
| Resolution of the analogue inputs | 16 Bit |
| System accessory | Yes |
| Width | 40 mm |
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Overview, features and application examples