Key Features
- Analog input module: SIMATIC S7-300 analog input SM 331.
- 8 analog inputs: Number of analog inputs: 8.
- Voltage and current input ranges: Supports +/-5/10V, 1-5 V, +/-20 mA, and 0/4 to 20 mA.
- 16 bit resolution: Resolution: 16 bit (55 ms).
- Isolation and diagnostics: Isolated inputs, diagnostics function: Yes; Parameterizable, and diagnostic information readable: Yes.
- 40-pin connection: Required front connector: 40-pin; 1x 40-pole.
Applications
- Analog signal acquisition: For reading voltage and current signals through 8 analog inputs.
- Signal input with diagnostics: For analog input monitoring with parameterizable diagnostics and limit value alarms.
Technical Summary
| Product function | SIMATIC S7-300 analog input SM 331 |
|---|---|
| Number of analog inputs | 8 |
| Input ranges | +/-5/10V, 1-5 V, +/-20 mA, 0/4 to 20 mA |
| Resolution | 16 bit (55 ms) |
| Required front connector | 40-pin |
| Isolation tested with | 500 V DC |
| Power loss, typ. | 0.6 W |
| Input current from backplane bus 5 V DC, max. | 130 mA |
Frequently Asked Questions
What is Siemens 6ES7331-7NF00-0AB0?
It is a SIMATIC S7-300 analog input SM 331 with 8 analog inputs.
Which input ranges does 6ES7331-7NF00-0AB0 support?
It supports +/-5/10V, 1-5 V, +/-20 mA, and 0/4 to 20 mA.
What resolution does the 6ES7331-7NF00-0AB0 module provide?
Resolution is 16 bit (55 ms).
What connection is required for this module?
The required front connector is 40-pin, and the description also lists 1x 40-pole.
