Product Description
Key Features
- Product identity: SM 1231, AI 8×13 bit analog input module for SIMATIC S7-1200.
- Analog inputs: 8 current or voltage differential inputs.
- Input ranges: Voltage: ±10 V, ±5 V and ±2.5 V; current: 0 to 20 mA and 4 to 20 mA.
- Supply and consumption: Rated supply: 24 V DC; typical current consumption: 60 mA; typical backplane bus consumption: 90 mA at 5 V DC.
- Resolution and cycle time: Resolution with overrange: 12 bit + sign; maximum cycle time for all channels: 625 μs.
- Protection and diagnostics: IP20 protection, supply-voltage monitoring, wire-break diagnosis, diagnostic alarm and input-status LED.
Technical Summary
| Product type | SM 1231, AI 8×13 bit |
|---|---|
| Analog inputs | 8; Current or voltage differential inputs |
| Rated supply voltage | 24 V DC |
| Input ranges | ±10 V, ±5 V, ±2.5 V, 0 to 20 mA, 4 to 20 mA |
| Resolution with overrange | 12 bit + sign |
| Cycle time, all channels, max. | 625 μs |
| Input resistance, voltage ranges | ≥9 MOhm |
| Input resistance, current ranges | 280 Ω |
| Typical current consumption | 60 mA |
| Typical backplane bus consumption | 90 mA at 5 V DC |
| IP degree of protection | IP20 |
| Product lifecycle | Active Product |
Frequently Asked Questions
What order number should be confirmed for this Siemens analog input module?
Confirm the complete order number 6ES7231-4HF32-0XB0 on the nameplate.
How many analog inputs does 6ES7231-4HF32-0XB0 have?
It has 8 current or voltage differential inputs.
Which signal ranges does this configuration support?
It supports ±10 V, ±5 V, ±2.5 V, 0 to 20 mA and 4 to 20 mA.
What supply voltage is specified?
The rated supply voltage is 24 V DC.
