Siemens 6ES7223-1PH32-0XB0 S7-1200 SM 1223 8DI/8DO Relay

Siemens SIMATIC S7-1200 SM 1223 digital I/O module provides 8 digital inputs (24V DC, sink/source) and 8 relay outputs (2A per channel). Combines input and output functions in one module for efficient space utilization. Relay outputs with group isolation, suitable for direct switching of low-power AC/DC loads within rated limits. Widely used in machine automation, conveyor systems, packaging equipment, and process control panels requiring mixed I/O with relay switching.

Applications:

• Mixed digital I/O expansion for S7-1200 CPUs

• Machine control with sensor inputs and relay-powered actuators

• Switching of pumps, fans, and small motors

• Actuation of solenoid valves and contactors

• Interfacing with AC or DC loads up to 2A

Technical Specifications:

• Number of inputs: 8 digital inputs

• Input voltage: 24V DC, sink/source (type 1 IEC 61131)

• Input delay: Configurable (0.2 ms to 12.8 ms)

• Number of outputs: 8 relay outputs (Form A, normally open)

• Output current: 2A per channel (resistive), 0.5A (inductive, typical)

• Load voltage: 5V to 230V AC / DC

• Isolation: Relay outputs with group isolation between channels

• Switching time: Approx. 10 ms (operate), 10 ms (release)

• Service life (mechanical): Approx. 10 million cycles

• Service life (electrical): Depends on load type and switching conditions (typical up to 100,000 cycles at rated load)

• Supply voltage: 24V DC from backplane bus

• Power loss: Approx. 2.0 W typical

• Dimensions (approx.): 100 mm x 70 mm x 75 mm

• Weight: Approx. 260 g

Compatibility:

• SIMATIC S7-1200 CPUs (1214C, 1215C, 1217C with sufficient I/O capacity)

• TIA Portal V11 or higher

Related Products:

• 6ES7223-1BH32-0XB0 – SM 1223 (8DI / 8DO transistor, 0.5A)

• 6ES7223-1PH32-0XB0 – SM 1223 (current model, 8DI / 8DO relay, 2A)

• 6ES7223-1BL32-0XB0 – SM 1223 (16DI / 16DO transistor)

For transistor outputs or higher I/O density, select appropriate variant.

Product Status:
Active product. Relay outputs provide electrical isolation between control and field circuits.

PLC ERA is an independent industrial automation distributor. Products are sourced through established supply channels and inspected prior to shipment. International shipping available.