Product Overview
Technical Summary
| Product type designation | SB 1231, AI 2x 16-bit RTD |
|---|---|
| Analog inputs | 2; Resistance thermometer |
| Input signal types | Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000 |
| Input resistance ranges | 150 Ω, 300 Ω, 600 Ω; 0 to 150 ohms, 0 to 300 ohms, 0 to 600 ohms |
| Resolution with overrange | 15 bit; + sign |
| Integration time | Parameterizable |
| Input current from backplane bus 5 V DC, typ. | 20 mA |
| Power loss, typ. | 0.1 W |
| Protection degree | IP20 |
Key Features
- Product designation: SB 1231, AI 2x 16-bit RTD.
- Analog inputs: 2 analog inputs for resistance thermometers.
- Supported resistance thermometers: Supports Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, and LG-Ni1000.
- Input resistance ranges: Supports 150 Ω, 300 Ω, and 600 Ω, plus rated ranges of 0 to 150 ohms, 0 to 300 ohms, and 0 to 600 ohms.
- Resolution and integration: Maximum resolution with overrange is 15 bit; + sign. Integration time and measured-value smoothing are parameterizable.
- Diagnostics and protection: Provides alarms, readable diagnostics, wire-break diagnosis, a DIAG LED, and IP20 protection.
Frequently Asked Questions
What product does Siemens order number 6ES7231-5PB50-0XB0 identify?
It identifies an SB 1231, AI 2x 16-bit RTD signal board for SIMATIC S7-1200 G2.
Which specifications should be checked to distinguish this MLFB?
Check the 2 analog resistance-thermometer inputs, supported Pt and Ni types, 15-bit resolution with overrange, and IP20 protection.
What code and nameplate details should be verified before inquiry?
Verify the complete order number 6ES7231-5PB50-0XB0 and the product designation SB 1231, AI 2x 16-bit RTD.
What information is needed for a quotation?
Provide the required quantity and destination together with the complete order number.
