Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Product type | SM 1231, AI 8×13 bit |
| 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 |
| Rated supply voltage | 24 V DC |
| Typical current consumption | 60 mA |
| Typical power loss | 1.5 W |
| Diagnostic functions | Diagnostic alarms, supply-voltage monitoring, wire-break detection |
| IP degree of protection | IP20 |
Applications
- Analog signal acquisition: Acquisition of current or voltage differential input signals through the module's 8 analog inputs.
Key Features
- Analog input type and channels: SM 1231, AI 8×13 bit with 8 current or voltage differential inputs.
- Supported voltage ranges: Voltage input ranges: ±10 V, ±5 V, and ±2.5 V.
- Supported current ranges: Current input ranges: 0 to 20 mA and 4 mA to 20 mA; input resistance is 280 Ω for both ranges.
- Resolution and cycle time: Resolution with overrange is 12 bit plus sign; cycle time for all channels is max. 625 μs.
- Supply and consumption: Rated supply voltage is 24 V DC; typical current consumption is 60 mA and typical power loss is 1.5 W.
- Diagnostics and protection: The module has diagnostic functions, diagnostic alarms, supply-voltage monitoring, wire-break detection, input-status and maintenance LEDs, and IP20 protection.
Frequently Asked Questions
1. How many analog inputs does Siemens 6ES7231-4HF32-0XB0 have?
It has 8 current or voltage differential analog inputs.
2. Which voltage ranges does the module support?
It supports ±10 V, ±5 V, and ±2.5 V voltage input ranges.
3. Which current ranges does the module support?
It supports 0 to 20 mA and 4 mA to 20 mA current input ranges, with 280 Ω input resistance for both.
4. What resolution and cycle time does it provide?
Resolution with overrange is 12 bit plus sign, and the cycle time for all channels is max. 625 μs.
5. What diagnostics are available?
It has diagnostic alarms, supply-voltage monitoring, wire-break detection, input-status and maintenance LEDs, and IP20 protection.
