Technical Summary
| Product type designation | SM 1231, AI 8x 14 bit |
|---|---|
| Number of analog inputs | 8; Current or voltage differential inputs |
| Input ranges, voltage | Yes; ±10V, ±5V, ±2.5V |
| Input ranges, current | Yes; 4 to 20 mA, 0 to 20 mA |
| Rated value (DC) | 24 V |
| Permissible supply voltage range, DC | 20.4 V to 28.8 V |
| Current consumption, typ. | 45 mA |
| From backplane bus 5 V DC, typ. | 75 mA |
| Power loss, typ. | 2.5 W |
| Cycle time (all channels) max. | 1.25 ms; at 400 Hz rejection |
| Resolution with overrange (bit including sign), max. | 13 bit; + sign |
| IP degree of protection | IP20 |
Key Features
SM 1231 analog input module
Product type designation: SM 1231, AI 8x 14 bit.
Product type designation: SM 1231, AI 8x 14 bit.
8 analog inputs
Number of analog inputs: 8; current or voltage differential inputs.
Number of analog inputs: 8; current or voltage differential inputs.
Voltage and current input ranges
Voltage: ±10V, ±5V, ±2.5V. Current: 4 to 20 mA, 0 to 20 mA.
Voltage: ±10V, ±5V, ±2.5V. Current: 4 to 20 mA, 0 to 20 mA.
14 bit ADC
Inputs: 8x AI 14 bit ADC.
Inputs: 8x AI 14 bit ADC.
IP20 protection
Degree of protection: IP20.
Degree of protection: IP20.
Applications
Analog signal acquisition
Acquiring 8 analog voltage or current input signals.
Acquiring 8 analog voltage or current input signals.
Voltage and current measurement interface
Connecting ±10V, ±5V, ±2.5V, 0 to 20 mA, or 4 to 20 mA signals to the module inputs.
Connecting ±10V, ±5V, ±2.5V, 0 to 20 mA, or 4 to 20 mA signals to the module inputs.
Frequently Asked Questions
What is the exact product type of Siemens 6ES7231-4HF50-0XB0?
It is an SM 1231 analog input module, AI 8x 14 bit.
How many analog inputs does 6ES7231-4HF50-0XB0 provide?
It provides 8 analog inputs.
Which input ranges are supported by this SM 1231 module?
Supported input ranges are ±10V, ±5V, ±2.5V, 0 to 20 mA, and 4 to 20 mA.
What is the DC supply requirement for 6ES7231-4HF50-0XB0?
Rated value: 24 V DC. Permissible range: 20.4 V to 28.8 V.
What protection rating does the module have?
The degree of protection is IP20.
