Product Overview
Technical Summary
| Product type designation | SB 1231, AI 4x 14 bit |
|---|---|
| Analog inputs | 4; Current or voltage differential inputs |
| Input ranges | Voltage: ±10 V, ±5 V, ±2.5 V; current: 4 to 20 mA, 0 to 20 mA |
| Rated supply voltage | 24 V DC |
| Permissible supply range | 20.4 V to 28.8 V DC |
| Maximum cycle time | 0.625 ms; all channels, at 400 Hz rejection |
Key Features
4 analog inputs with current or voltage differential inputs and 14-bit ADC.
Voltage: ±10 V, ±5 V, ±2.5 V; current: 4 to 20 mA and 0 to 20 mA.
Rated supply voltage: 24 V DC; permissible range: 20.4 V to 28.8 V DC.
Maximum cycle time for all channels: 0.625 ms at 400 Hz rejection.
Diagnostics, diagnostic alarm, supply-voltage monitoring, wire-break detection, DIAG LED, and parameterizable measured-value smoothing.
Frequently Asked Questions
What is the exact product variant?
The exact line item is Siemens 6ES7231-4HD50-0XB0, product type SB 1231, AI 4x 14 bit.
How many analog inputs does it have?
It has 4 analog inputs with current or voltage differential inputs.
Which input ranges are supported?
It supports ±10 V, ±5 V, ±2.5 V, 4 to 20 mA, and 0 to 20 mA.
What supply voltage is required?
The rated supply voltage is 24 V DC, with a permissible range of 20.4 V to 28.8 V DC.
What project details should accompany a quotation request?
Provide the requested quantity, destination, schedule context, and any additional BOM lines.
