High-Performance Compact PLC Core for Industrial Automation
The ABB PM556-TP-ETH (1SAP121200R0071) is a powerful AC500-eCo series PLC processor module designed for advanced industrial automation, machine control, and distributed process systems. It combines compact hardware design, Ethernet communication, and enhanced program memory capacity, making it suitable for OEM machines and mid-level industrial control applications.
Positioned within ABB’s AC500 PLC family, this module delivers a strong balance of performance, scalability, and system integration flexibility, especially in environments requiring stable 24/7 automation control.
Technical Specifications
| Parameter | Details |
|---|
| Model | PM556-TP-ETH |
| Order Code | 1SAP121200R0071 |
| Product Type | PLC Processor / CPU Module |
| Series | ABB AC500-eCo |
| Manufacturer | ABB |
| Supply Voltage | 24 V DC |
| Program Memory | 512 kB |
| Digital Inputs | 8 DI |
| Digital Outputs | 6 DO (transistor type) |
| Communication Interfaces | Ethernet + RS485 |
| Expansion Slots | 2 option slots |
| Power Consumption | ~2.5–3.3 W |
| Operating Temperature | -25°C to +60°C |
| Storage Temperature | -40°C to +70°C |
| Dimensions | Approx. 81 × 73 × 134 mm |
| Weight | Approx. 0.24–0.30 kg |
| Mounting Type | DIN rail installation |
Industrial Applications
This PLC processor module is widely used in:
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Packaging and labeling machines
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Conveyor and material handling systems
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OEM industrial machinery
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Pump and compressor control systems
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HVAC automation systems
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Light process automation lines
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Small-to-medium manufacturing cells
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Distributed control subsystems
Its Ethernet capability makes it especially suitable for networked factory automation and remote monitoring environments.
Key Advantages
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Strong processing capability for compact PLC class
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Ethernet communication for modern industrial networking
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Expandable architecture with 2 option slots
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Efficient power consumption for continuous operation
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Flexible integration with ABB AC500 ecosystem
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Compact footprint suitable for dense control cabinets
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Stable performance in harsh industrial environments
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Reliable long-term operation for OEM machinery
These strengths make it a popular choice for machine builders seeking a cost-efficient yet capable PLC core.
Technical FAQs
Q1: Is the ABB PM556-TP-ETH a full PLC system?
A: It is a PLC CPU module that requires I/O modules and expansion components to form a complete automation system.
Q2: What communication interfaces does it support?
A: It includes built-in Ethernet and RS485 communication ports.
Q3: How much memory does it have?
A: The module provides approximately 512 kB of program memory.
Q4: Can it be expanded with additional modules?
A: Yes, it supports 2 expansion option slots for system scalability.
Q5: What is the typical power supply requirement?
A: It operates on a standard 24 V DC industrial supply.
Q6: Is it suitable for standalone machine control?
A: Yes, it is commonly used in standalone OEM machine applications.
Q7: What is its approximate size?
A: Around 81 × 73 × 134 mm depending on configuration.
Q8: What is its weight?
A: Approximately 0.24–0.30 kg.
Q9: Does it support industrial networking?
A: Yes, Ethernet support allows integration into modern industrial networks.
Q10: What industries commonly use it?
A: Manufacturing, packaging, HVAC, utilities, and machine automation sectors.
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