SIMATIC S7-200 EM 231 8-channel analog input / 6ES7231-0HF22-0XA0

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: 6ES7231-0HF22-0XA0
Brand: Siemens
Category: PLC and HMI
Catalog status: Request a quotation

Technical specifications

Controller family: SIMATIC S7-200
Analog inputs: 8 differential inputs; channels 6 and 7 selectable for current
Input ranges: Voltage channels 0-7: 0 to +10 V, 0 to +5 V, +/-2.5 V; current channels 6-7: 0 to 20 mA
Conversion time: Less than 250 microseconds
Isolation (field to logic): No
Supply voltage: 20.4 to 28.8 VDC
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 426, 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: 6ES7231-0HF22-0XA0 · 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.