Product Overview
Technical Summary
| Product designation | SM 1231, AI 4×16 bit |
|---|---|
| Based on | 6ES7231-5ND32-0XB0 |
| Analog inputs | 4; current or voltage differential inputs |
| Voltage input ranges | ±10 V, ±5 V, ±2.5 V, or ±1.25 V |
| Current input ranges | 0 to 20 mA; 4 to 20 mA |
| Rated supply voltage | 24 V DC |
| Resolution | 15 bit; + sign |
| Cycle time, all channels, max. | 625 μs |
| Operating temperature | -20 °C to 60 °C; start-up at 0 °C |
| Protection | IP20 |
Key Features
- Product designation: SM 1231, AI 4×16 bit analog input module for SIPLUS S7-1200.
- Analog inputs: 4 current or voltage differential inputs.
- Input ranges: Voltage: ±10 V, ±5 V, ±2.5 V, or ±1.25 V; current: 0 to 20 mA or 4 to 20 mA.
- Resolution and cycle time: 15 bit plus sign resolution with a maximum cycle time of 625 μs for all channels.
- Supply and connection: Rated supply voltage: 24 V DC; required front connector.
- Environmental protection: Conformal coating, IP20 protection, and operation from -20 °C to 60 °C; start-up at 0 °C.
Frequently Asked Questions
What product does 6AG1231-5ND32-4XB0 identify?
It identifies a Siemens SIPLUS S7-1200 SM 1231 analog input module, product designation SM 1231, AI 4×16 bit.
Which specifications distinguish this MLFB variant?
The listed variant has 4 current or voltage differential inputs, voltage ranges of ±10 V, ±5 V, ±2.5 V, or ±1.25 V, current ranges of 0 to 20 mA or 4 to 20 mA, and conformal coating.
What code and nameplate details should be checked?
Check the complete order number 6AG1231-5ND32-4XB0 and the supplied base reference 6ES7231-5ND32-0XB0.
What information is needed for a quotation request?
Provide the complete order number, required quantity, and destination so the quotation request can be checked against the intended configuration.
