Technical Summary
| Product type designation | SM 1231, AI 4×16 bit RTD |
|---|---|
| Rated supply voltage | 24 V |
| Number of analog inputs | 4; Resistance thermometer |
| Current consumption, typ. | 40 mA |
| Backplane bus current, typ. | 80 mA |
| Power loss, typ. | 1.5 W |
| Supported resistance thermometer types | Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000 |
| Supported resistance inputs | 150 Ω, 300 Ω, 600 Ω |
| Resolution with overrange, max. | 15 bit; + sign |
| Interference voltage suppression | 85 dB at 50 / 60 / 400 Hz |
| Common mode interference, min. | 120 dB |
| IP degree of protection | IP20 |
Key Features
SIMATIC S7-1200 analog input module
SM 1231 RTD signal module for the SIMATIC S7-1200 range.
SM 1231 RTD signal module for the SIMATIC S7-1200 range.
4 analog inputs for RTD signals
Provides 4 analog inputs for resistance thermometers.
Provides 4 analog inputs for resistance thermometers.
SM 1231, AI 4×16 bit RTD
Product type designation: SM 1231, AI 4×16 bit RTD.
Product type designation: SM 1231, AI 4×16 bit RTD.
24 V DC rated supply
Rated value (DC): 24 V.
Rated value (DC): 24 V.
Diagnostics and alarms
Alarms, diagnostic alarm, diagnostics function, monitoring the supply voltage, and wire break detection are supported.
Alarms, diagnostic alarm, diagnostics function, monitoring the supply voltage, and wire break detection are supported.
Applications
Resistance thermometer input acquisition
Reads resistance thermometers through 4 analog inputs.
Reads resistance thermometers through 4 analog inputs.
Frequently Asked Questions
What is the exact product designation of 6ES7231-5PD32-0XB0?
The product type designation is SM 1231, AI 4×16 bit RTD.
How many analog inputs does this SM 1231 RTD module provide?
It has 4 analog inputs for resistance thermometers.
What supply voltage does 6ES7231-5PD32-0XB0 require?
Rated value (DC): 24 V.
Which resistance thermometer types are supported by this module?
Supported types include Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, and LG-Ni1000.
