Siemens 6ES7223-5BH50-0XB0 SIMATIC S7-1200 SM 1223 8DI/8DO Digital I/O Module

The Siemens 6ES7223-5BH50-0XB0 is a SIMATIC S7-1200 SM 1223 digital I/O module with 8 sink/source 24 V DC inputs and 8 transistor-sourcing 24 V DC outputs rated 0.5 A each. Inputs meet the IEC 61131 type 1 characteristic curve in groups of four, and outputs switch resistive loads up to 0.5 A or lamp loads up to 5 W, with short-circuit protection to be provided externally.

Technical Specifications

Certifications & Standards

• CE mark
• UL approval
• cULus
• RCM
• KC approval

Selection Notes

The SM 1223 8DI/8DO pairs sink/source-capable 24 V DC inputs with sourcing-only transistor outputs, so it suits stations that mix sensors wired either way on the input side while keeping outputs limited to 0.5 A loads such as small solenoids and indicator lamps. Because the outputs carry no internal short-circuit protection, external fusing is needed when driving loads with high inrush or stall current. The 707 V DC potential separation between channel groups and the backplane bus allows it to sit next to analog or higher-voltage modules on the same DIN rail without added isolation hardware.

Applications

Conveyor sensor and pneumatic solenoid interfacing, packaging line limit switches and indicator lamps, or general digital I/O expansion for S7-1200 stations that have outgrown the CPU's onboard 8 DI/6 DO count.