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The 6ES7223-1PH22-0XA0 is a digital input/output expansion module (EM 223) whose hardware specifications explicitly limit its use to S7-22X series CPUs. This unit integrates eight 24 VDC digital inputs and eight relay outputs in a compact housing, providing a direct means of proportionally increasing signal channels in industrial environments.
Low-power consumption inputs
Single-slot integration of 8 digital inputs (DI) and 8 digital outputs (DO)
Dry-contact compatibility for switching both 24 VDC and up to 230 VAC loops
This module demonstrates great adaptability when managing mixed field instrumentation signals. The sink/source compatibility of the 24 VDC input channels means both NPN and PNP type sensors can connect directly to the terminals, removing the need for external signal conversion isolators. Meanwhile, the 8 DO relay outputs provide a high current carrying capacity of 2A/point, which allows the control panel to directly power small solenoids, contactor coils, or indicator tower lights without auxiliary interposing relays. This combined approach of flexible input matching and high-current output makes the unit widely utilized for hardware expansions in packaging machinery, conveyor routing, and various small-to-medium workshop material handling setups.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Siemens 6ES7223-1PH22-0XA0 I/O Module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Water Treatment Industry
Controls the start/stop of mixers and pumps in wastewater treatment plants, and collects high/low-level alarm signals from level switches.
Automotive
Detects carrier positioning on body assembly conveyor lines, controlling lifts and pneumatic clamps.
Pharmaceutical Machinery
Collects die position counts in tablet presses and controls reject cylinders to remove defective pills.
Printing & Paper Industry
Detects paper status using photoelectric switches in paper cutting machines and controls cutting manipulator air valves.
Metal Processing
Used for receiving safety light curtain signal inputs on small hydraulic punches and bending machines, as well as logic interlocking for solenoid valve spool positions.
Packaging Machinery
Controls cylinder solenoid valves for small-to-medium sealing and labeling machines, while collecting input signals from limit switches and photoelectric sensors.
When using the 6ES7223-1PH22-0XA0 module, installation or removal must be done with the power completely off to prevent burnout. High voltage must never be wired into the 24V DC inputs. In addition, since its relay output current is limited to 2A per point, intermediate relays or surge suppressors must be installed when driving heavy inductive loads to prolong contact life.
The 6ES7223-1PH22-0XA0 is a SIMATIC S7-200 digital input/output expansion module (EM 223) engineered exclusively for S7-22X CPU controllers only. This unit expands automation setups by adding 8 digital inputs rated at 24 VDC and 8 digital relay outputs. The input channels are built with a flexible configuration that fully accommodates both sink and source wiring topologies, adapting easily to various industrial field sensors. For the output circuits, the robust mechanical relay contacts provide a high switching capacity capable of handling up to 2A per point, making them suitable for directly driving inductive and resistive loads like solenoids and contactors. This compact module integrates directly into the legacy S7-200 control architecture via a backplane ribbon cable, delivering efficient field-level signaling and stable mechanical operations.
How to install the 6ES7223-1PH22-0XA0 in an industrial control system?
The module can be snapped onto a standard 35 mm DIN rail or screw-mounted onto the backplate of a control cabinet, and it connects to the S7-200 CPU host via its built-in ribbon cable.
What is the maximum switching current for the relay outputs of the 6ES7223-1PH22-0XA0?
Each relay output contact can handle a maximum current of 2 Amperes (2 A) under resistive load conditions.
Does the 6ES7223-1PH22-0XA0 module require an external power supply to operate?
Yes, the expansion module draws power from the CPU via the internal bus, and the field-side 24 VDC input loops typically require an external 24 VDC power supply.
n which programming software can the 6ES7223-1PH22-0XA0 be configured?
This module is programmed and hardware-configured using Siemens STEP 7-Micro/WIN software.
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