Product Description
Key Features
- Analog input identity: SIMATIC S7-300 analog input SM 331 with 2 analog inputs and isolated channels.
- Supported input signals: Supports voltage, current, thermocouple, resistance thermometer and resistance measurements.
- Resolution and conversion: Resolution with overrange is 15 bit; parameterizable integration time is 2,5 / 16,67 / 20 / 100 ms.
- Diagnostics and alarms: Has parameterizable diagnostics, diagnostic and limit value alarms, readable diagnostic information and a red group error SF LED.
- Connections and mounting: Uses a required 20-pin front connector and supports removing/inserting with active backplane bus.
- Supply and lifecycle: Rated load voltage L+ is 24 V DC, with reverse polarity protection. Product cancellation.
Applications
- Voltage measurement: Supports voltage measurement.
- Current measurement: Supports current measurement with 2-wire and 4-wire transducers.
- Resistance measurement: Supports resistance measurement with two-wire, three-wire and four-wire connections.
Technical Summary
| Analog inputs | 2 |
|---|---|
| Resolution with overrange | 15 bit; Unipolar: 9/12/12/14 bit; bipolar: 9 bit + sign/12 bit + sign/12 bit + sign/14 bit + sign |
| Supported input ranges | Voltage, current, thermocouple, resistance thermometer and resistance |
| Rated load voltage L+ | 24 V DC |
| Input resistance | 100 kΩ for 1 V to 5 V; 10 MΩ for -1 V to +1 V |
| Integration time | 2,5 / 16,67 / 20 / 100 ms, parameterizable |
| Required front connector | 20-pin |
| Isolation tested with | 500 V DC |
| Product lifecycle | Product cancellation |
Frequently Asked Questions
What exact order number should be confirmed for this analog input module?
Confirm the nameplate order number 6ES7331-7KB02-0AB0.
How many analog inputs does 6ES7331-7KB02-0AB0 have?
It has 2 analog inputs.
Which front connector is required?
A 20-pin front connector is required.
What lifecycle data is supplied for this configuration?
The supplied lifecycle data is Product cancellation.
