Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Product type | SM 1231, AI 4×13 bit |
| Analog inputs | 4; current or voltage differential inputs |
| Voltage input ranges | ±10 V, ±5 V, ±2.5 V |
| Current input ranges | 0 to 20 mA; 4 to 20 mA |
| Resolution | 12 bit; + sign |
| Maximum cycle time | 625 μs with all channels active |
| Rated supply voltage | 24 V DC |
| Typical current consumption | 45 mA |
Key Features
- 4 differential analog inputs: The SM 1231 provides 4 current or voltage differential inputs.
- Voltage and current ranges: Supported ranges include ±10 V, ±5 V, ±2.5 V, 0 to 20 mA, and 4 to 20 mA.
- 13-bit ADC resolution: Resolution with overrange is 12 bit plus sign, with a 13-bit ADC.
- Fast channel cycle time: Maximum cycle time with all channels active is 625 μs.
- Diagnostics and LED indication: The module has diagnostic alarms, supply-voltage monitoring, wire-break diagnostics, and LED indication for input status and maintenance.
- Conformal coating and IP20: The module has conformal coating, IP20 protection, and a required front connector.
Frequently Asked Questions
1. What input signals does the Siemens 6AG1231-4HD32-4XB0 support?
It supports voltage inputs of ±10 V, ±5 V, and ±2.5 V, plus current inputs of 0 to 20 mA and 4 to 20 mA.
2. How many analog inputs does this module have?
It has 4 current or voltage differential inputs.
3. What resolution and cycle time does the module provide?
Resolution with overrange is 12 bit plus sign, and the maximum cycle time with all channels active is 625 μs.
4. What supply voltage and typical current consumption are specified?
The rated supply voltage is 24 V DC, and typical current consumption is 45 mA.
5. What connection and protection details should be verified before inquiry?
The module requires a front connector and has IP20 protection, dimensions of 45 mm × 100 mm × 75 mm, and a weight of approximately 180 g.
