Product information
Overview
Applications
- Temperature measurement: Measures temperature using resistance thermometers with adjustable degrees Celsius or degrees Fahrenheit.
Key Features
- RTD input capacity: 4 analog inputs for resistance thermometers, including Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100 and LG-Ni1000.
- Rated supply: Rated supply voltage: 24 V DC; permissible range: 20.4 V to 28.8 V DC.
- Resolution and conversion: Resolution with overrange: 15 bit including sign; integration time is parameterizable and the measurement principle is integrating.
- Signal processing: Measured-value smoothing is parameterizable with None, low, Medium and High steps; interference voltage suppression is 85 dB at 10 / 50 / 60 / 400 Hz.
- Diagnostics and isolation: The module has alarms, readable diagnostics, supply-voltage monitoring, wire-break detection and DIAG LED indication. Analog inputs are separated from the electronics power supply.
- Protection and sensor cable: Protection degree: IP20. Shielded cable length is up to 100 m to the sensor.
Technical Summary
| Product type | SM 1231 RTD 4x 16 bit |
|---|---|
| Analog inputs | 4; Resistance thermometer |
| Supported resistance thermometers | Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000 |
| Rated supply voltage | 24 V DC |
| Permissible supply range | 20.4 V to 28.8 V DC |
| Resolution with overrange | 15 bit including sign |
| Integration time | Parameterizable |
| Temperature measurement unit | Degrees Celsius/degrees Fahrenheit |
| Protection degree | IP20 |
Frequently Asked Questions
What is the exact Siemens model and module type?
The exact model is Siemens 6ES7231-5PD50-0XB0, with product type SM 1231 RTD 4x 16 bit.
How many RTD inputs does the module have?
It has 4 analog inputs for resistance thermometers.
What supply voltage does it require?
The rated supply voltage is 24 V DC, with a permissible range of 20.4 V to 28.8 V DC.
Which sensor cable length is supported?
Shielded cable length is up to 100 m to the sensor.
Can you quote this module for my quantity and destination?
Send the required quantity, destination and project-list context for a model-specific quotation.
