Product Description
Key Features
- Analog input identity: SIMATIC S7-300 analog input SM 331 with 8 isolated AI.
- Supported input ranges: Voltage inputs include 1 V to 5 V, -10 V to +10 V, and -5 V to +5 V. Current inputs include 0 to 20 mA, -20 mA to +20 mA, and 4 mA to 20 mA.
- Resolution and integration: Resolution with overrange is 16 bit maximum. Parameterizable integration time: 10/ 16.67/ 20/ 100 ms.
- Signal encoder connections: Supports voltage measurement, current measurement as a 2-wire transducer with external transmitter, and current measurement as a 4-wire transducer.
- Front connector and dimensions: Required front connector: 40-pin. Dimensions: 40 mm width, 125 mm height, and 117 mm depth.
- Lifecycle status: Product cancellation.
Applications
- Analog voltage and current measurement: The module supports voltage measurement and current measurement as a 2-wire transducer with external transmitter or as a 4-wire transducer.
Technical Summary
| Product type | SIMATIC S7-300 analog input SM 331 |
|---|---|
| Analog inputs | 8 isolated AI |
| Supported voltage ranges | 1 V to 5 V; -10 V to +10 V; -5 V to +5 V |
| Supported current ranges | 0 to 20 mA; -20 mA to +20 mA; 4 mA to 20 mA |
| Resolution with overrange | 16 bit maximum |
| Integration time | Parameterizable: 10/ 16.67/ 20/ 100 ms |
| Input resistance | 2 MΩ for voltage ranges; 250 Ω for current ranges |
| Required front connector | 40-pin |
| Isolation tested with | 500 V DC |
| Lifecycle | Product cancellation |
Frequently Asked Questions
What order number should be confirmed for this analog input module?
Confirm Siemens order number 6ES7331-7NF00-0AB0 and the SIMATIC S7-300 SM 331 identity.
Which input ranges should be checked?
Check 1 V to 5 V, -10 V to +10 V, -5 V to +5 V, 0 to 20 mA, -20 mA to +20 mA, and 4 mA to 20 mA.
Which front connector is required?
A 40-pin front connector is required.
What is the configured resolution and integration time?
Resolution with overrange is 16 bit maximum, with parameterizable integration time of 10/ 16.67/ 20/ 100 ms.
What lifecycle data applies to this configuration?
It has the lifecycle status Product cancellation.
