Key Features
- SIMATIC S7-300 analog input module: Analog input SM 331 for the SIMATIC S7-300 family.
- 8 isolated analog inputs: Provides 8 AI with isolation and single-point grounding.
- Voltage and current input ranges: Supports +/-5/10V, 1-5 V, +/-20 mA, and 0/4 to 20 mA.
- 16 bit conversion: Resolution is 16 bit with 55 ms indicated in the product description.
- 40-pin front connector: Requires a 1x 40-pole front connector.
Technical Summary
| Product function | SIMATIC S7-300, analog input SM 331 |
|---|---|
| Number of analog inputs | 8 |
| Input ranges | Voltage; Current |
| Voltage rated values | -10 V to +10 V; -5 V to +5 V; 1 V to 5 V |
| Current rated values | 0 to 20 mA; -20 mA to +20 mA; 4 mA to 20 mA |
| Resolution with overrange | 16 bit; Unipolar: 15/15/15/15 bit; bipolar: 15 bit + sign/15 bit + sign/15 bit + sign/15 bit + sign |
| Integration time | Yes; 10/ 16.67/ 20/ 100 ms |
| Isolation tested with | 500 V DC |
| Connection method | required front connector 40-pin |
Applications
- Analog signal acquisition: For reading voltage and current signals through 8 analog inputs.
- Transducer signal measurement: For current measurement as a 2-wire transducer with external transmitter or as a 4-wire transducer.
- Voltage measurement connections: For voltage measurement on supported analog input ranges.
Frequently Asked Questions
What is Siemens 6ES7331-7NF00-0AB0?
It is a SIMATIC S7-300 analog input SM 331 module.
How many analog inputs does 6ES7331-7NF00-0AB0 have?
It has 8 analog inputs.
Which input ranges are supported by 6ES7331-7NF00-0AB0?
Supported ranges include +/-5/10V, 1-5 V, +/-20 mA, and 0/4 to 20 mA.
What connector is required for Siemens 6ES7331-7NF00-0AB0?
A required front connector 40-pin is specified.
