Product Overview
Technical Summary
| Analog inputs | 8 |
|---|---|
| Isolation | Between analog inputs and backplane bus: Yes; isolation tested with 500 V DC |
| Supported signal types | Voltage, current, resistance, and resistance thermometer; thermocouple: No |
| Resolution | 13 bit including sign, max. |
| Conversion time | 66 / 55 ms basic conversion time |
| Front connector | 40-pin |
| Backplane bus input current | 5 V DC, max. 90 mA |
| Power loss | 0.4 W, typ. |
| Product lifecycle | Product cancellation |
Key Features
The SM 331 has 8 analog inputs and potential separation between the analog inputs and the backplane bus.
Input ranges support voltage, current, resistance, and resistance thermometer signals; thermocouple input is not supported.
Resolution with overrange is 13 bit including sign.
Basic conversion time is 66 / 55 ms, with parameterizable integration time of 60 / 50 ms.
The module requires a 40-pin front connector and measures 40 mm wide, 125 mm high, and 117 mm deep.
Product cancellation.
Frequently Asked Questions
What is the exact product variant?
It is Siemens SIMATIC S7-300 analog input SM 331 module 6ES7331-1KF02-0AB0.
How many analog inputs does it have?
It has 8 analog inputs.
Which signal types are supported?
It supports voltage, current, resistance, and resistance thermometer signals. Thermocouple input is not supported.
Which connector is required?
A 40-pin front connector is required.
Can this line item be included in a project quotation?
Yes. Provide the requested quantity, destination, schedule context, and any additional BOM lines.
