ABB PM556-TP-ETH CPU Module
ABB PM556-TP-ETH
The PM556-TP-ETH is a CPU module belonging to the ABB AC500-eCo series, engineered specifically for small-scale machinery and complex control tasks in industrial automation. Powered by 24 V DC, it comes with 512 kB (approx. 642 kB) of program memory, and is equipped with dual communication interfaces of Industrial Ethernet and RS-485. This module can operate independently in distributed control systems (DCS) or be integrated with S500-eCo I/O modules for expanded functionality.
Key Technical Specifications
| Parameter | Details |
|---|---|
| Supply Voltage | 24 V DC |
| Program Memory | 512 kB (approx. 642 kB) RAM |
| Digital I/O | 8 DI / 6 DO |
| Communication Interfaces | 1 × Industrial Ethernet (10/100 Mbps) + 1 × RS-485 |
| Dimensions & Weight | Approx. 74 mm × 82 mm × 135 mm; Approx. 0.28 kg |
| Operating Temperature | -25 °C – +60 °C (standard industrial environment) |
| Protection Rating | IP20 |
Product Features
- High-performance Processor
Delivers rapid execution of complex control algorithms, ensuring exceptional real-time responsiveness for time-critical industrial operations.
- Flexible Communication Capabilities
Dual Ethernet and RS-485 interfaces support multiple protocols including Fieldbus, Modbus TCP, and EtherNet/IP, enabling seamless integration with upper-level systems and other PLCs.
- Modular Design
Adopts the same mechanical interface as S500-eCo I/O terminal blocks, supporting expansion with up to 7 I/O modules for quick on-site assembly and configuration flexibility.
- Compact & Lightweight
Its small footprint and light weight make it ideal for installation in space-constrained cabinets or embedded applications.
- Industrial-grade Reliability
Complies with the IEC 61131-3 standard, featuring robust anti-interference performance and a long-service-life design suited for harsh industrial environments.
Structure & Components
- CPU Main Unit: Serves as the core processing component, integrating memory, communication interfaces, and power management functions.
- Communication Slots: Two standardized slots are dedicated to Ethernet and RS-485 respectively, with the option to insert additional communication modules for customized connectivity.
- Terminal Board: Supports wiring for both 24 V DC and 230 V AC voltage levels, compatible with screw or spring-type terminals for easy and secure connections.
- Heat Sink: A metal heat sink efficiently dissipates heat to maintain the module’s stable operating temperature.
Typical Application Areas
- Control systems for small packaging machinery and assembly lines
- Local control units in process automation setups
- Motion control subsystems for robotics or CNC machine tools
- Energy management and monitoring (e.g., power distribution cabinets, frequency converter front-ends)
- Fieldbus gateways or edge gateway nodes for industrial IoT deployments
Installation & Maintenance Guidelines
Installation
- Insert the CPU module into a standard 19-inch cabinet or DIN rail, and ensure that the fixing screws are fully tightened.
- Connect the 24 V DC power supply according to specifications, and verify the polarity before powering on the module.
- Use the corresponding terminal board for wiring. If no I/O modules are used, the pre-wiring function of the terminal board can be directly utilized to complete basic input/output configurations.
- Connect to upper-level systems or fieldbuses via Ethernet or RS-485 interfaces. It is recommended to use shielded twisted-pair cables and ensure proper grounding to minimize signal interference.
Commissioning
- Download programs using ABB’s PC-Based tools such as Automation Builder. For first-time use, it is advisable to perform a hardware detection to confirm that all modules are recognized correctly.
- Check the I/O status to ensure that the digital input/output signals correspond accurately with field devices.
Maintenance
- Regularly inspect power supplies and wiring terminals for looseness or corrosion to prevent electrical faults.
- Monitor the module temperature, and clean dust from the heat sink when necessary to maintain optimal heat dissipation.
- Use official safety upgrade packages for firmware updates to avoid compatibility issues caused by non-official firmware versions.
- In case of communication abnormalities, first check network cables, IP configurations, and the RS-485 terminal resistors for faults.
If you would like to learn more about our products and services, please feel free to contact us at any time!
- Sales Manager : Jinny
- Email : sales5@xrjdcs.com
- Whatsapp/Mobile:+86 15359273791
Global renowned brand cooperation
ABB 丨 GE 丨Allen Bradley 丨 Honeywell 丨 Emerson 丨 Bently Nevada 丨 Westinghouse
Triconex 丨 Foxboro 丨 ICS Triplex 丨 Hima 丨 Schneider 丨 Yokogawa 丨 Woodward
—————————————————————————————
Professional Supplier of Large-Scale Control Systems & Imported Module Spare Parts
About Logistics
-
Geographical AdvantageHeadquartered in Xiamen, a key port city, we leverage convenient sea, air and land transportation networks to realize fast domestic and international deliveries, significantly shortening lead times.
-
Global Logistics NetworkWe cooperate with world-leading logistics companies to offer multiple transportation options, including sea freight and air freight, ensuring that goods are delivered to destinations across the globe safely and efficiently.
-
Flexible Shipping SolutionsTailored to customer requirements, we provide diverse logistics plans such as door-to-door delivery, less than container load (LCL) and full container load (FCL), helping clients reduce costs and enhance operational efficiency.
-
Real-Time Logistics TrackingWe support real-time cargo tracking, enabling customers to monitor the transportation status at any time and guaranteeing on-time delivery.
-
Professional Customs Clearance ServicesOur team provides fast customs declaration and tariff consulting services, ensuring smooth customs clearance for international shipments and minimizing delivery delays.
-
High-Standard PackagingWe adopt international-standard packaging to protect goods from damage during transit. Customized packaging solutions are also available to meet specific customer needs.
