ABB AC500 CPU PM573-ETH | PLC Processor Module – Replacement, Equivalent & Selection Guide
The ABB AC500 PM573-ETH (SKU: ABB-CPU-AC500) is a high-performance PLC CPU module from ABB’s AC500 series, designed for demanding industrial automation applications. This page provides full technical specifications, compatible replacement models, and a structured selection guide to help engineers and procurement teams make informed decisions.
Technical Specifications
- Manufacturer: ABB
- Series: AC500
- Model / SKU: PM573-ETH (ABB-CPU-AC500)
- Module Type: PLC CPU Processor Module
- Communication: Ethernet (ETH), MODBUS, CANopen
- Program Memory: Up to 1 MB
- Data Memory: Up to 512 KB
- I/O Capacity: Up to 512 digital I/O / 128 analog I/O (via expansion)
- Operating Voltage: 24 V DC
- Operating Temperature: -25°C to +60°C
- Protection Rating: IP20
- Programming Standard: IEC 61131-3 (LD, FBD, ST, IL, SFC)
- Weight: ~140 g
- Country of Origin: Germany / Switzerland
Compatible Replacement & Equivalent Models
The following models are commonly evaluated as replacements or equivalents for the ABB AC500 PM573-ETH. Always verify electrical and communication compatibility before substitution:
- ABB PM571-ETH – Lower-spec AC500 CPU; suitable for smaller applications
- ABB PM572-ETH – Mid-range AC500 CPU; direct functional equivalent with reduced memory
- ABB PM582-ETH – Higher-spec AC500 CPU; drop-in upgrade with expanded I/O
- Siemens S7-1200 CPU 1214C – Cross-brand alternative; requires re-programming
- Schneider Electric M241 – Cross-brand alternative; Ethernet-capable, IEC 61131-3 compliant
- Mitsubishi FX5U-32MT/ES – Cross-brand; suitable for smaller standalone systems
Note: Cross-brand replacements require full system re-validation. Contact our engineers for compatibility assessment.
Why Choose the Original ABB AC500 PM573-ETH
- ✅ Guaranteed compatibility with existing ABB AC500 I/O modules and expansion racks
- ✅ Native support for ABB Automation Builder programming environment
- ✅ Proven reliability in continuous 24/7 industrial environments
- ✅ Full ABB firmware update and lifecycle support
- ✅ Seamless integration with ABB drives, HMIs, and SCADA systems
- ✅ Certified to IEC, CE, UL, and cULus standards
Typical Applications
- Factory automation and discrete manufacturing lines
- Water and wastewater treatment plant control
- Building management and HVAC systems
- Energy management and power distribution monitoring
- Conveyor and material handling systems
- Oil & gas process control (non-hazardous zones)
System Compatibility
The PM573-ETH is designed to operate within the ABB AC500 ecosystem:
- Compatible I/O Modules: DC532, DC522, AI523, AO523, and all AC500 S500 I/O series
- Compatible HMIs: ABB CP600 series, CP400 series
- Compatible Drives: ABB ACS880, ACS580, ACS355 via fieldbus
- Programming Software: ABB Automation Builder 2.x / Automation Builder 1.x
- Communication Protocols: MODBUS TCP/IP, MODBUS RTU, CANopen, CS31
Selection Guide
Use the table below to select the right AC500 CPU for your application:
| Model | Memory | Max I/O | Ethernet | Best For |
|---|---|---|---|---|
| PM571-ETH | 256 KB | 256 DI/O | Yes | Small systems |
| PM572-ETH | 512 KB | 512 DI/O | Yes | Mid-size systems |
| PM573-ETH | 1 MB | 512 DI/O | Yes | Standard industrial (recommended) |
| PM582-ETH | 2 MB | 1024 DI/O | Yes | Large-scale systems |
| PM592-ETH | 4 MB | 2048 DI/O | Yes | Enterprise / redundant systems |
Quality Assurance & Sourcing
- 🔍 100% Original: All units sourced directly from ABB authorized distributors or certified secondary market channels
- 📦 Inspection: Every module undergoes visual inspection and functional verification before shipment
- 📄 Documentation: Original datasheet, CE declaration, and test report available on request
- 🔒 Anti-counterfeit: Serial number verification available via ABB official channels
- 🚚 Lead Time: In-stock units ship within 1–3 business days; special orders within 7–15 days
How to Order
- Confirm your required model number and quantity
- Add to cart or contact us directly for bulk/OEM pricing
- Provide your project specs for free compatibility review (optional)
- Receive order confirmation and tracking within 24 hours
📧 Email: support@konmask.com
📞 Phone/WhatsApp: +0086 19859288691
🌐 Website: https://Konmask.com
Replacement & Compatibility FAQ
Q: Can I replace PM573-ETH with PM572-ETH without reprogramming?
A: In most cases yes, but memory limitations on PM572 may require program optimization. Backup your project first.
Q: Is the PM573-ETH compatible with older AC500 V1 I/O modules?
A: Yes, the PM573-ETH supports both AC500 V1 and V2 I/O modules with appropriate firmware.
Q: Can I use a Siemens S7-1200 as a direct replacement?
A: No. Cross-brand replacement requires full re-engineering of the control program and I/O wiring. We recommend staying within the ABB AC500 family for minimal downtime.
Q: Do you supply new, refurbished, or used units?
A: We primarily supply new original units. Certified refurbished units are available upon request with full test documentation.
Q: What warranty is provided?
A: 12-month warranty on all units. Extended warranty available for volume orders.
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Contact: support@konmask.com | +0086 19859288691
