Key facts
- Brand
- Siemens
- Model
- EM 223
- Industry
- Industrial
- Documents
- 2
- Languages
- ZH
- Last added
- 2022-09-03
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Siemens EM 223 24 VDC Digital Mixed Module Manual
The EM 223 24 VDC digital mixed module is a Siemens SIMATIC expansion module offering 32 digital inputs and either 32 digital outputs or 32 relay outputs. It is used to extend the I/O capacity of S7‑200 PLC systems and includes both sink and source input types.
The manual details the physical dimensions, power consumption, electrical characteristics, isolation ratings, cable length limits, and safety warnings. It also provides wiring diagrams and recommended external suppression circuits for switching inductive loads with the relay‑output version. This manual is written in Chinese.
Siemens EM 223 specifications
| Part Number (Solid State) | 6ES7 223-1BM22-0XA8 |
|---|---|
| Part Number (Relay) | 6ES7 223-1PM22-0XA8 |
| Physical Dimensions (WxHxD) | 196 mm x 80 mm x 62 mm |
| Weight | 500g to 580g |
| Input Voltage Requirement (+24V) | 4mA/point (input), 9mA/point (output) |
| Input Count | 32 inputs |
| Input Type | Sinking or Sourcing (IEC) |
| Rated Input Voltage | 24 VDC |
| Output Type (Solid State) | MOSFET (Sourcing) |
| Rated Output Voltage (Solid State) | 24 VDC |
| Rated Output Voltage (Relay) | 24 VDC or 250 VAC |
| Max Current per Point (Solid State) | 0.75A |
| Isolation (Field to Logic) | 500 VAC, 1 minute |
Source: Siemens EM 223 Digital I/O Module Product Information Sheet
All Siemens EM 223 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
Can the inputs be configured as sinking or sourcing?
Yes, the input type can be either sinking (漏型) or sourcing (源型).
From: Siemens EM 223 Digital I/O Module Product Information Sheet
What is the maximum cable length for shielded connections?
The maximum cable length for shielded cables is 500 meters.
From: Siemens EM 223 Digital I/O Module Product Information Sheet
What is the maximum number of simultaneous input points?
The module can handle up to 55 simultaneous input points in horizontal installation and 45 in vertical installation.
What is the isolation voltage rating for the module?
The module provides optical isolation of 500 VAC for up to one minute.