Key Features
- Analog input module: SIMATIC S7-200 analog input EM 231 for S7-22X CPU.
- Input capacity: 8 AI; Difference.
- Voltage input range: 0-10V DC.
- Current input channels: max 2 AI 0..20 mA, for channels 6 and 7 only.
- Diagnostics indication: external fault EXTF (red): Yes.
Applications
- Analog signal input for S7-22X CPU: Provides analog input handling for an S7-22X CPU.
- Voltage signal acquisition: Accepts 0-10V DC input signals.
- Current signal acquisition on selected channels: Accepts 0..20 mA input signals on channels 6 and 7.
Technical Summary
| Product type | SIMATIC S7-200, analog input EM 231 |
|---|---|
| Compatible CPU | only for S7-22X CPU |
| Number of analog inputs | 8; Difference |
| Voltage input | 0-10V DC |
| Current input | max 2 AI 0..20 mA |
| Resolution | 12/11-bit converter |
| Power loss, typ. | 2 W |
| External fault LED | Yes |
Frequently Asked Questions
What is Siemens 6ES7231-0HF22-0XA0?
It is a SIMATIC S7-200 analog input EM 231 module for S7-22X CPU.
How many analog inputs does 6ES7231-0HF22-0XA0 provide?
It provides 8 AI; Difference.
What input signals does this module support?
It supports 0-10V DC, and 0..20 mA is available for channels 6 and 7 only.
What is the conversion specification of this module?
It uses a 12/11-bit converter.
What should be checked before selecting this module?
Check that the target CPU is an S7-22X CPU and that the required input signal matches the supported 0-10V DC or 0..20 mA channel options.
