Skip to main content
Log in
Siemens 6ES7223-1PH20-0XA0 — PLC I/O & Expansion Modules

Siemens 6ES7223-1PH20-0XA0 EM 223, 8 DI x 24 VDC

MPN6ES7223-1PH20-0XA0

Siemens 6ES7223-1PH20-0XA0 EM 223, 8 x 24 VDC inputs, 8 x relay outputs 2 A, for S7-1200 PLC system.

$129.16Ref. price · indicative, final on quote
Siemens 6ES7223-1PH20-0XA0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6ES7223-1PH20-0XA0 — Specifications
ParameterValue
Weight0.09 kgs

Product details

What this module does in the S7-1200 rack

The Siemens 6ES7223-1PH20-0XA0 is an EM 223 expansion module that adds 8 digital inputs at 24 VDC and 8 relay outputs rated 2 A per channel to a Siemens S7-1200 PLC system. The relay output side means the module handles mixed-voltage loads — 24 VDC on the inputs, and the relay contacts can switch 24 VDC or 120/230 VAC loads up to 2 A independently, isolating the PLC backplane from the field wiring.

I/O mix and field wiring constraints

Eight 24 VDC sinking/sourcing inputs (type 3 per IEC 61131-2) give the module a 4 ms nominal input filter — fast enough for most discrete sensors on a conveyor or packaging line, but slow enough to debounce mechanical limit switches without a separate timer in the logic.

Frequently asked questions

Is the 6ES7223-1PH20-0XA0 compatible with Siemens S7-1200?

Yes, the EM 223 is designed for the S7-1200 system. It mounts directly on the right side of the CPU or another expansion module, communicating over the backplane bus without additional wiring.

What is the output type of 6ES7223-1PH20-0XA0?

The output type is relay, 8 channels, each rated 2 A. The relay contacts are form-A (normally open) and can switch AC or DC loads up to 2 A, providing galvanic isolation between the PLC and the field devices.

How do I wire the relay outputs on 6ES7223-1PH20-0XA0?

Each relay output has a common terminal shared by two outputs. Wire the load between the common and the normally-open contact. For inductive loads (contactors, solenoids), install a flyback diode across DC loads or an RC snubber across AC loads to protect the relay contacts.

What are the specifications of 6ES7223-1PH20-0XA0?

The module provides 8 digital inputs at 24 VDC and 8 relay outputs at 2 A. It is part of the Siemens EM 223 family for the S7-1200 system. Weight is 0.09 kg.

MPN
6ES7223-1PH20-0XA0