SIMATIC S7-200 EM 231 2-channel RTD input / 6ES7231-7PB22-0XA0

Classic SIMATIC S7-200 component with specifications reviewed against the August 2008 manufacturer manual. Verify exact variant, host compatibility, supplied revision and installation requirements. Current lifecycle and availability are not established by this historical source.

Manufacturer part number: 6ES7231-7PB22-0XA0
Brand: Siemens
Category: PLC and HMI
Catalog status: Request a quotation

Technical specifications

Controller family: SIMATIC S7-200
Channels: 2 RTD inputs
Input type: Module ground referenced RTD; 2, 3 or 4 wire connections
Sensor types: Pt, Cu, Ni or resistance; select one per module; exact supported types per manual
Input resolution: Temperature 0.1 C / 0.1 F; resistance 15 bits plus sign
Module update time (all channels): 405 ms; 700 ms for Pt10000
Dimensions (W x H x D): 71.2 x 80 x 62 mm
Removable connector: No
Generation scope: Classic S7-200 exact ordering code; not CN or SMART; verify supplied revision and host compatibility
Reviewed document edition: 08/2008 / A5E00307987-04
Document pages: PDF 438, 509; exact ordering row and applicable specifications
Current lifecycle status: Not established by historical manual; confirm current lifecycle and supply separately

Manufacturer manual · S7-200 System Manual / 08/2008 / A5E00307987-04 · en · PDF · 08/2008 / A5E00307987-04Manufacturer source: Siemens · Model explicitly covered in family document · Covered models: 6ES7231-7PB22-0XA0 · Checked: 2026-10-22Official manufacturer source

This sheet provides a quick technical summary. For design, installation and final selection, review the latest official manufacturer documentation and verify the complete part number.