Key Features
- Analog input module with 4 channels: 4 AI; Current or voltage differential inputs.
- Voltage input ranges: ±10V, ±5V, ±2.5V.
- Current input ranges: 4 to 20 mA, 0 to 20 mA.
- Resolution: 12 bit; + sign.
- Diagnostics and monitoring: Alarms, diagnostics function, diagnostic alarm, monitoring the supply voltage, and wire break.
Applications
- Acquiring 4 analog current or voltage signals: Used for reading 4 analog current or voltage differential inputs into the control system.
Technical Summary
| Product type designation | SM 1231, AI 4×13 bit |
|---|---|
| Number of analog inputs | 4; Current or voltage differential inputs |
| Voltage input ranges | Yes; ±10V, ±5V, ±2.5V |
| Current input ranges | Yes; 4 to 20 mA, 0 to 20 mA |
| Resolution with overrange (bit including sign), max. | 12 bit; + sign |
| Cycle time (all channels) max. | 625 μs |
| Rated value (DC) | 24 V |
| Current consumption, typ. | 45 mA |
| from backplane bus 5 V DC, typ. | 80 mA |
| Power loss, typ. | 1.5 W |
| IP degree of protection | IP20 |
| Temperature error (relative to input range), (+/-) | 25 °C ±0.1%, to 55 °C ±0.2% total measurement range |
Frequently Asked Questions
What is the Siemens 6ES7231-4HD32-0XB0?
It is an SM 1231 analog input module for SIMATIC S7-1200.
How many analog inputs does 6ES7231-4HD32-0XB0 provide?
It provides 4 analog inputs.
Which input ranges does the SM 1231 AI 4×13 bit support?
It supports ±10V, ±5V, ±2.5V, 4 to 20 mA, and 0 to 20 mA.
What are the electrical and resolution details for this module?
Rated value is 24 V DC, current consumption is 45 mA typ., and resolution is 12 bit; + sign.
