Product information
Overview
Key Features
- Analog input capacity: 4 analog inputs; current or voltage differential inputs with 14-bit ADC.
- Supported input ranges: Voltage: ±10 V, ±5 V, ±2.5 V. Current: 0 to 20 mA and 4 to 20 mA.
- Rated supply: 24 V DC rated supply, with a permissible range of 20.4 V to 28.8 V DC.
- Channel cycle time: Maximum cycle time for all channels: 0.625 ms at 400 Hz rejection.
- Signal cable: Maximum cable length: 100 m for shielded, twisted-pair cable.
- Diagnostics: Diagnostics include supply-voltage monitoring, wire-break detection, diagnostic alarm, DIAG LED, and input-status indication.
Technical Summary
| Product type | SB 1231, AI 4x 14 bit |
|---|---|
| Analog inputs | 4; Current or voltage differential inputs |
| Input ranges | ±10 V, ±5 V, ±2.5 V, 0 to 20 mA, 4 to 20 mA |
| Rated supply | 24 V DC |
| Permissible supply range | 20.4 V to 28.8 V DC |
| Cycle time | 0.625 ms maximum for all channels; at 400 Hz rejection |
| Resolution with overrange | 13 bit; + sign |
Frequently Asked Questions
What is the exact type of Siemens 6ES7231-4HD50-0XB0?
It is an SB 1231 analog input module with 4x 14-bit AI for SIMATIC S7-1200 G2.
Which voltage and current input ranges are supported?
Voltage ranges are ±10 V, ±5 V, and ±2.5 V. Current ranges are 0 to 20 mA and 4 to 20 mA.
What supply voltage does this module require?
The rated supply is 24 V DC, with a permissible range of 20.4 V to 28.8 V DC.
What diagnostics are available?
The module has supply-voltage monitoring, wire-break detection, a diagnostic alarm, a DIAG LED, and input-status indication.
