Machine Automation Solution – SIEMENS 6ES7223-1PM22-0XA8 | S7-200 SMART Series
The SIEMENS 6ES7223-1PM22-0XA8 is a compact digital I/O expansion module for the S7-200 SMART PLC platform, delivering 8 digital inputs and 8 digital outputs at 24 VDC. Engineered for demanding industrial environments, it extends the I/O capacity of S7-200 SMART CPUs with minimal panel footprint and deterministic signal response — making it the preferred choice for machine builders and system integrators across Asia and globally.
Where This Product Is Used
The 6ES7223-1PM22-0XA8 is deployed across a wide range of industrial automation applications:
- Packaging Machinery — Conveyor sequencing, reject gate control, and sensor feedback loops in FMCG and pharmaceutical lines.
- Material Handling — Pallet transfer systems, sorter diverters, and end-of-line inspection stations.
- Machine Tool Control — Spindle interlocks, door safety monitoring, and axis limit sensing on CNC and semi-automatic machines.
- Water & Wastewater Treatment — Pump start/stop control, valve actuation, and level switch monitoring in compact SCADA-less installations.
- Building Automation & HVAC — Fan/pump sequencing, damper control, and alarm annunciation in small-to-mid-scale BMS panels.
- Food & Beverage Processing — Hygienic-area I/O extension where S7-200 SMART CPUs manage filling, capping, and labeling stations.
- OEM Panel Builders — Standard expansion block in pre-engineered control panels for export machinery.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 6ES7223-1PM22-0XA8 |
| Series | SIMATIC S7-200 SMART |
| Module Type | Digital Combination I/O Expansion Module |
| Digital Inputs | 8 × 24 VDC (sink/source) |
| Digital Outputs | 8 × 24 VDC Transistor (source) |
| Input Voltage Range | 20.4 – 28.8 VDC |
| Output Current (per point) | 0.75 A |
| Total Output Current | 6 A (max, all outputs) |
| Input Delay (ON) | ≤ 6.4 ms (standard filter) |
| Isolation | Optical (500 VAC, 1 min) |
| Backplane Bus Current Draw | 105 mA @ 5 VDC |
| Power Dissipation | 2.5 W (typical) |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | −40 °C to +70 °C |
| Relative Humidity | 5 – 95% (non-condensing) |
| Degree of Protection | IP20 |
| Dimensions (W × H × D) | 45 × 100 × 81 mm |
| Weight | ≈ 480 g |
| Mounting | DIN rail (EN 60715) |
| Certifications | CE, UL, cULus, RCM |
Why Engineers Specify This Model
- Seamless S7-200 SMART Integration — Plug-and-play expansion via the CPU’s I/O bus; no additional configuration hardware required.
- Transistor Outputs for High-Cycle Applications — Solid-state switching supports >10 million operations — ideal for high-frequency solenoid and relay coil driving.
- Compact DIN-Rail Form Factor — 45 mm wide profile minimises panel real estate in space-constrained enclosures.
- Optical Isolation — Protects the CPU backplane from field-side voltage transients and ground loops.
- Wide Temperature Tolerance — Operates reliably in unair-conditioned factory floors up to 55 °C.
- Proven Platform Longevity — S7-200 SMART is actively supported by Siemens with firmware updates and spare-part availability.
Complete System Bill of Materials
For a complete S7-200 SMART control system using this expansion module, engineers typically specify:
- S7-200 SMART CPU (e.g., CPU ST20 / ST30 / ST40 / ST60)
- 6ES7223-1PM22-0XA8 — Digital I/O Expansion Module (this item)
- SIEMENS LOGO! Power or PM207 24 VDC Power Supply
- STEP 7-Micro/WIN SMART Programming Software (V2.6+)
- PC/PPI+ USB Programming Cable or Ethernet patch cable
- DIN rail, terminal blocks, and cable duct (panel accessories)
- Optional: EM AM06 Analog I/O module for process variable feedback
Compliance & Industry Standards
- CE Marking — Complies with EU Low Voltage Directive 2014/35/EU and EMC Directive 2014/30/EU.
- UL / cULus Listed — Recognized for use in North American industrial control panels.
- IEC 61131-2 — Programmable controller hardware standard compliance.
- EN 61000-4 Series — EMC immunity: ESD, EFT/Burst, surge, conducted RF.
- RCM (Australia/NZ) — Regulatory compliance mark for Oceania markets.
- RoHS Compliant — Restriction of hazardous substances per EU Directive 2011/65/EU.
Quality Assurance & Sourcing
Konmask.com sources the 6ES7223-1PM22-0XA8 through verified industrial distribution channels. Every unit undergoes the following before dispatch:
- Visual inspection of housing, connector pins, and label integrity.
- Verification of Siemens holographic authenticity label and date code.
- Functional power-on check where applicable.
- Anti-static packaging with humidity indicator card for long-haul shipping.
We maintain traceability records for all stock batches. Certificates of conformity and test reports are available upon request for project procurement teams.
How to Source This Part
- In-Stock Orders — Add to cart and check out directly. DHL / FedEx / UPS international express available.
- Bulk / Project Quantities — Contact [email protected] for volume pricing and lead-time confirmation.
- Urgent Requirements — WhatsApp / WeChat: +0086 19859288691 for same-day quotation on critical spares.
- OEM / System Integrator Accounts — Apply for a trade account to access tiered pricing and priority allocation.
- Export Documentation — Commercial invoice, packing list, CO, and FORM E available for customs clearance support.
Application-Specific FAQ
Q: How many 6ES7223-1PM22-0XA8 modules can I connect to one S7-200 SMART CPU?
A: Up to 6 expansion modules can be connected to a single S7-200 SMART CPU, subject to the CPU’s maximum I/O point count and backplane current budget.
Q: Are the outputs sourcing or sinking?
A: The transistor outputs are source-type (PNP), providing +24 VDC to the load. Ensure your field devices (solenoids, relays, indicators) are wired accordingly.
Q: Can this module replace the older 6ES7223-1PM22-0XA0?
A: Yes. The -0XA8 is the current production revision and is backward-compatible with earlier -0XA0 hardware in the same S7-200 SMART system.
Q: Is this module compatible with S7-200 (classic) CPUs?
A: No. The S7-200 SMART expansion bus is not compatible with the legacy S7-200 (EM series) modules. Ensure your CPU is from the S7-200 SMART family.
Q: What programming software is required?
A: STEP 7-Micro/WIN SMART V2.4 or later. The software is available free of charge from the Siemens Industry Online Support portal.
Q: Do you provide a warranty?
A: Yes — 12-month warranty against manufacturing defects. DOA (Dead on Arrival) units are replaced or refunded within 7 business days of confirmed inspection.
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