Siemens 6ES7223-1PL32-0XB0 SIMATIC S7-1200 SM 1223 Digital I/O Module 16DI/16DO 24V DC Relay

16‑channel digital input and 16‑channel relay output signal module for SIMATIC S7-1200 PLC systems, expanding I/O capacity for discrete control applications in industrial automation.

The Siemens 6ES7223-1PL32-0XB0 is an SM 1223 digital I/O module for SIMATIC S7-1200 PLCs (except CPU 1211C) with 16 sink/source digital inputs (24V DC) and 16 relay outputs (2A). The module supports parameterizable input delays (0.2‑12.8 ms, selectable in groups of four), direct AC/DC load switching up to 250 V AC or 30 V DC without external relays, and diagnostics via LED indicators [14†L3-L7][14†L20-L24]. The IP20 rated module is designed for DIN rail mounting and is configured with TIA Portal.

Applications

• Expanding I/O for S7-1200 CPU in machine control and factory automation

• Controlling motors, solenoids, contactors, and indicator lights

• AC and DC load switching in packaging machinery and conveying systems

• Field signal acquisition from pushbuttons, limit switches, and sensors

• OEM equipment and hybrid I/O requirement applications

Key Features

• 16 digital inputs (24 V DC, sink/source, groups of 2) [9†L17-L19]

• 16 relay outputs (2 A per channel, groups of 4) [14†L24-L28]

• Parameterizable input delay: 0.2 ms to 12.8 ms in eight steps (selectable in groups of four) [14†L20-L23]

• Relay switching: 5 V DC to 30 V DC, 5 V AC to 250 V AC, 2 A resistive load max [14†L25-L28]

• 24 V DC rated supply voltage (20.4 … 28.8 V DC) [14†L8-L9]

• LED status indicators for each channel, diagnostics for supply voltage [14†L33-L37]

• IP20 protection, DIN rail mounting, width 70 mm [9†L17-L18]

• No short‑circuit protection on outputs (external protection required) [14†L24-L25]

Technical Specifications

• Manufacturer: Siemens

• Model: 6ES7223-1PL32-0XB0

• Product Type: SIMATIC S7-1200 Digital I/O Module (SM 1223)

• Digital Inputs: 16 (24 V DC, sink/source, groups of 2, IEC 61131 type 1) [14†L12-L14]

• Digital Outputs: 16 (relay, groups of 4) [14†L24-L25]

• Output Current: 2 A per channel resistive load, 8 A per group, total 8 A [14†L26-L32]

• Input Current: 4 mA typical per channel [14†L19-L20]

• Power Loss: typ. 10 W [14†L12]

• Backplane Current: 180 mA @ 5 V DC [14†L9-L10]

• Dimensions (W × H × D): 70 × 100 × 75 mm [9†L17-L18]

• Weight: 0.32 kg [4†L17-L18]

• Operating Temperature: -20 °C to +60 °C (horizontal) [9†L18-L19]

• Protection Rating: IP20 [9†L18-L19]

• Mounting: DIN rail

• Certifications: CE, CSA, UL, FM, RCM, KC, Marine

• GTIN (EAN): 6940408102019 [9†L21-L22]

• Country of Origin: China

System Integration

• PLC Controllers: SIMATIC S7‑1200 CPUs (except 1211C; 1212C, 1214C, 1215C, 1217C) [3†L21]

• I/O System: S7‑1200 signal module family

• Configuration Software: TIA Portal (STEP 7 Basic or Professional)

• Mounting: S7‑1200 DIN rail, up to 8 modules per CPU

Related Products

• PLC Controller: Siemens 6ES7215‑1AG40‑0XB0 CPU 1215C – system core

• Power Supply: Siemens 6EP1332‑2BA00 – 24V DC power supply

• Cable: Siemens 6XV1840‑2AH10 PROFINET Ethernet cable

• Analog I/O: Siemens 6ES7234‑4HE32‑0XB0 SM 1234 – mixed analog I/O expansion

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