Siemens 6ES7223-1PH22-0XA0 EM 223 I/O Module

Reliable Mixed I/O Expansion for S7-200 Systems

The Siemens 6ES7223-1PH22-0XA0 serves as an EM 223 digital input/output module for the SIMATIC S7-200 series, specifically designed for S7-22X CPUs. This module provides 8 digital inputs and 8 relay outputs in a single compact unit, offering a robust solution for mixed signal processing. The inputs operate at 24 V DC with sink/source capability, while the relay outputs handle both AC and DC loads up to 2 A per channel. Consequently, this versatile I/O configuration reduces the need for separate input and output modules in control cabinets.

Technical Specifications

Specification	Value
Model	6ES7223-1PH22-0XA0
Product Type	EM 223 Digital I/O Module
System Compatibility	S7-200 (S7-22X CPU only)
Digital Inputs	8 (24 V DC, sink/source)
Digital Outputs	8 (relay)
Rated Output Current	2 A per channel
Input Voltage	24 V DC
AC Load Voltage	24 V AC to 230 V AC
DC Load Voltage	5 V DC to 30 V DC
Power Loss	3 W (typical)
Dimensions (W x H x D)	71.2 mm x 80 mm x 62 mm
Weight	Approx. 300 g
Input Delay	4.5 ms maximum
Shielded Cable Length	500 m maximum
Unshielded Cable Length	150 m maximum
Isolation Test	500 V AC
Approvals	CE, UL, ATEX, FM, maritime (ABS, BV, DNV, GL, LR, RMRS, CCS)

Input and Output Performance Characteristics

Input circuits feature a typical current of 4 mA for signal “1” and provide reliable signal discrimination with an OFF threshold of 0 to 5 V and an ON threshold of 15 to 30 V DC. The relay outputs deliver 2 A per channel and support inductive loads up to 0.75 A and lamp loads up to 200 W for AC applications. LED indicators on the front panel display the status of each I/O point for real-time diagnostics. The module also includes potential separation via optocouplers for inputs and relays for outputs, with isolation in groups of 4 channels. Furthermore, the module supports 2-wire sensors with a permissible quiescent current of up to 1 mA.

Installation and Connectivity

The Siemens 6ES7223-1PH22-0XA0 mounts directly onto the S7-200 expansion bus via plug-in I/O terminals, simplifying field wiring and maintenance. The compact dimensions ensure seamless integration into existing cabinets. This module holds a comprehensive range of international approvals, including ABS, BV, DNV, GL, LR, and CCS maritime certifications, making it suitable for marine applications. It also carries ATEX and FM approvals for use in hazardous locations.