I/O module SIMATIC SM 1223

S7-1200 digital expansion module with eight 24 V inputs and eight relay outputs for increasing panel I/O capacity.

Manufacturer part number: 6ES7223-1PH32-0XB0
Brand: Siemens
Category: PLC and HMI
Catalog status: Request a quotation

Technical specifications

Module type: Digital I/O
Digital inputs: 8 DI, 24V DC
Digital outputs: 8 Relay outputs
Supply range: 20.4 to 28.8V DC
Terminal: Screw
Compatibility: SIMATIC S7-1200
Operating Temperature: 20- to 60+ °C
Protection rating: IP20

Manufacturer manual · S7-1200 system manual / 6ES7223-1PH32-0XB0 explicit technical specification column PDF page 1265 · en · PDF · V4.5 / A5E02486680-AO · 2021-05Manufacturer source: Siemens · Model explicitly covered in family document · Covered models: 6ES7223-1PH32-0XB0 · Checked: 2026-10-08Official 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.