Key Features
- Analog input module: SIMATIC S7-300 analog input SM 331.
- 8 thermocouple inputs: Supports 8 AI for thermocouple signals.
- Isolated design: Isolation is provided for the module.
- 16 bit resolution: Resolution with overrange, max.: 16 bit; Two's complement.
- 50 ms conversion time: Basic conversion time: 50 ms.
- 40-pole connection: Required front connector: 40-pin.
Applications
- Thermocouple signal acquisition: Acquires 8 thermocouple inputs in a SIMATIC S7-300 station.
Technical Summary
| Product function | SIMATIC S7-300, analog input SM 331 |
|---|---|
| Number of analog inputs | 8 |
| Thermocouple input support | Type B, E, J, K, L, N, R, S, T TXK/TXK (L) according to GOST |
| Resolution with overrange | 16 bit; Two's complement |
| Basic conversion time | Up to 4 channels: 10 ms per module, 5 channels upwards: 190 ms per module |
| Isolation | Isolation tested with 500 V DC |
| Potential separation | between the channels and backplane bus |
| Load voltage L+ rated value | 24 V |
| Power loss, typ. | 3 W |
| Required front connector | 40-pin |
Frequently Asked Questions
What is Siemens 6ES7331-7PF11-0AB0?
It is a SIMATIC S7-300 analog input SM 331 module.
How many analog inputs does 6ES7331-7PF11-0AB0 provide?
It provides 8 analog inputs.
Which signal types does the module support?
It supports thermocouple input, including type B, E, J, K, L, N, R, S, T and TXK/TXK (L) according to GOST.
What electrical and connection details are important for selection?
Load voltage L+ is 24 V, power loss typ. is 3 W, and the required front connector is 40-pin.
