Key Features
- Analog input module: SIMATIC S7-1200 SM 1231 analog input module for 8 AI.
- Supported input ranges: Voltage inputs: ±10 V, ±5 V, ±2.5 V. Current inputs: 0-20 mA and 4-20 mA.
- Resolution and diagnostics: 12 bit+sign, with diagnostic alarm, wire break monitoring, and supply voltage monitoring.
- Electrical supply: Rated value (DC): 24 V.
- Physical data: Packaging dimensions: 10,60 x 8,90 x 5,70 cm. Net weight: 0,187 Kg.
Technical Summary
| Product type designation | SM 1231, AI 8×13 bit |
|---|---|
| Rated value (DC) | 24 V |
| Number of analog inputs | 8; Current or voltage differential inputs |
| Voltage input ranges | ±10 V, ±5 V, ±2.5 V |
| Current input ranges | 0 to 20 mA; 4 mA to 20 mA |
| Resolution with overrange | 12 bit; + sign |
| Cycle time (all channels) max. | 625 μs |
| Current consumption, typ. | 60 mA |
| from backplane bus 5 V DC, typ. | 90 mA |
| Power loss, typ. | 1.5 W |
| IP degree of protection | IP20 |
| Product lifecycle | Active Product |
Applications
- Analog signal acquisition: Acquiring current or voltage differential input signals through 8 analog inputs.
Frequently Asked Questions
What is the exact Siemens order number and module type?
The exact order number is 6ES7231-4HF32-0XB0, and the module type is SM 1231, AI 8×13 bit.
How many analog inputs does this module have?
It has 8 analog inputs with current or voltage differential inputs.
Which input ranges are supported?
Supported ranges are ±10 V, ±5 V, ±2.5 V, 0-20 mA, and 4-20 mA.
What supply and power data are listed?
Rated value (DC) is 24 V, typical current consumption is 60 mA, and typical power loss is 1.5 W.
