Product Overview
Technical Summary
| Product designation | SIMATIC S7-300 analog input SM 331 |
|---|---|
| Number of analog inputs | 8 |
| Input types | Voltage, current, resistance, and resistance thermometer |
| Resolution with overrange | 13 bit |
| Basic conversion time | 66 / 55 ms |
| Required front connector | 40-pin |
| Potential separation | Between analog inputs and backplane bus: Yes; between channels: No |
| Product lifecycle | Product cancellation |
Key Features
- SIMATIC S7-300 SM 331 analog input: The module is a SIMATIC S7-300 SM 331 analog input module and is identified as a spare part.
- 8 isolated analog inputs: It has 8 analog inputs, with potential separation between the analog inputs and the backplane bus; the channels are not isolated from each other.
- Supported input types: The module supports voltage, current, resistance, and resistance thermometer input ranges; thermocouple input is not supported.
- 13-bit resolution and conversion: Resolution with overrange is 13 bit. Parameterizable integration time is 60 / 50 ms, with a basic conversion time of 66 / 55 ms.
- Signal connection options: It supports voltage measurement, current measurement with 2-wire transducers with external supply or 4-wire transducers, and resistance measurement with two-, three-, or four-wire connections.
- 40-pin connection and dimensions: The required front connector is 40-pin. Module dimensions are 40 mm wide, 125 mm high, and 117 mm deep; approximate weight is 250 g.
Frequently Asked Questions
What product does 6ES7331-1KF02-0AB0 identify?
It identifies a SIMATIC S7-300 analog input SM 331 with 8 isolated analog inputs.
Which input ranges distinguish this module?
It supports voltage, current, resistance, and resistance thermometer input ranges, including 0 to +10 V, 1 V to 5 V, 0 to 20 mA, 4 mA to 20 mA, and -20 mA to +20 mA.
What resolution and conversion time does it have?
Resolution with overrange is 13 bit. The basic conversion time is 66 / 55 ms, and integration time is parameterizable to 60 / 50 ms.
Which connector and dimensions should be checked?
Check the required 40-pin front connector and dimensions of 40 mm width, 125 mm height, and 117 mm depth.
