PLC MODULE 6ES7223-1PL22-0XA8 6ES7 223-1PL22-0XA8 6ES7223-1PL22-OXA8

Siemens 6ES7223-1PL22-0XA8 SIMATIC S7-200 CN EM 223

Overview

The 6ES7223-1PL22-0XA8 is a SIMATIC S7-200 CN Digital I/O EM 223 expansion module. Siemens identifies this model as only for S7-22X CPUs, with 16 digital inputs at 24 V DC, sink/source, and 16 relay digital outputs rated 2 A per channel.

Siemens product information for the S7-200 CN phase-out range also lists this exact order number in the EM 223 digital combination I/O group.

This module belongs to the expansion-I/O side of the S7-200 CN platform. Its structure is especially useful where a compact CPU needs both additional digital input capacity and relay output channels in the same expansion body.

Because Siemens places it in the S7-200 CN product range and also lists that CN range in phase-out information, it is particularly relevant in maintenance, service, and replacement of installed S7-200 CN systems.

Technical Data

Application Value

This module fits S7-200 CN installations where the installed controller uses an S7-22X CPU and needs additional digital I/O in a mixed format.

The combination of 16 digital inputs and 16 relay outputs makes it useful in cabinets where both signal acquisition and contact-style output switching are part of the original hardware design.

In existing systems, that mixed format helps preserve the original expansion concept without splitting the function across separate input and output modules.

Selection Notes

The key checks are the S7-22X CPU compatibility, the EM 223 designation, the 16 DI / 16 relay DO structure, and the fact that this is part of the S7-200 CN product range.

These are the practical compatibility points for this expansion module.

FAQ

Q1: What kind of module is 6ES7223-1PL22-0XA8?
It is a SIMATIC S7-200 CN EM 223 digital combination I/O module. Siemens identifies it with 16 digital inputs at 24 V DC and 16 relay digital outputs, which makes it an expansion module rather than a CPU.

Q2: Which CPUs is this module intended for?
Siemens states that this model is only for S7-22X CPU. That compatibility point is fundamental and should be verified before purchase, because the module belongs to the S7-200 CN expansion range designed for that CPU class.

Q3: Why is the mixed 16 DI / 16 relay DO structure important?
Because this module combines input acquisition and relay output switching in one expansion body. That format is useful in existing S7-200 CN systems where the installed cabinet already depends on a mixed-I/O expansion module instead of separate input and output cards.

Q4: Why do the relay outputs matter on this module?
The relay output format is part of the module’s identity and affects field-load connection. Siemens specifies 16 relay outputs rated 2 A per channel, so this module should be matched where the original installation uses relay-contact output behavior rather than transistor switching.

Q5: What should be checked before ordering?
Confirm the installed part number, verify that the system uses an S7-22X CPU, make sure the required expansion type is EM 223, and check that the existing cabinet depends on the same 16 DI / 16 relay DO combination and the S7-200 CN hardware range.