Key Features
- 8 analog inputs: Analog input module with 8 AI.
- 14-bit resolution: Resolution with overrange: 14 bit; Unipolar: 14 bit; bipolar: 13 bit + sign.
- Diagnostics and alarms: Diagnostics function: Yes. Diagnostic alarm: Yes; parameterizable. Limit value alarm: Yes; parameterizable, channels 0 and 2.
- Isolated input design: Potential separation between the channels and the backplane bus, and between the channels and the power supply of the electronics.
- 20-pole front connector: Required front connector: 20-pin.
- Isochronous mode: Isochronous mode: Yes.
Applications
- Analog signal acquisition in SIMATIC S7-300: Reads analog input signals into a SIMATIC S7-300 system.
- Current signal acquisition: Handles current input signals for analog measurement.
- Voltage signal acquisition: Handles voltage input signals for analog measurement.
- Isochronous-mode analog acquisition: Supports analog input operation in isochronous mode.
Technical Summary
| Product function | Analog input SM 331 |
|---|---|
| Number of analog inputs | 8 |
| Resolution with overrange | 14 bit; Unipolar: 14 bit; bipolar: 13 bit + sign |
| Basic conversion time | 52 μs per channel |
| Load voltage L+ rated value (DC) | 24 V |
| Power loss, typ. | 1.5 W |
| Input ranges | Current: Yes |
| Diagnostics function | Yes |
| Required front connector | 20-pin |
| Isolation tested with | 500 V DC |
Frequently Asked Questions
What is Siemens 6ES7331-7HF01-0AB0?
It is a SIMATIC S7-300 analog input SM 331 module.
How many analog inputs does 6ES7331-7HF01-0AB0 have and what is its resolution?
It has 8 analog inputs and 14 bit resolution with overrange; unipolar is 14 bit and bipolar is 13 bit + sign.
What connection and isolation details are specified for 6ES7331-7HF01-0AB0?
It uses a 1x 20-pole front connector and is isolation tested with 500 V DC.
Does 6ES7331-7HF01-0AB0 provide diagnostics and alarms?
Yes. It has a diagnostics function, a parameterizable diagnostic alarm, and a parameterizable limit value alarm for channels 0 and 2.
