Overview
Configured for programmable logic execution and integrated I/O control in ABB AC500-eCo systems, the ABB PM556-TP-ETH (PM556-TP-ETH AC500-eCo CPU Processor) provides direct physical and electrical execution. The controller integrates 8 digital inputs, 6 transistor digital outputs, Ethernet communication, one RS485 interface, 512 kB memory, and two option slots for system expansion.
Suffix Breakdown & Model Matrix
The provided documentation identifies PM556-TP-ETH as a fixed product model. No official suffix breakdown or ordering matrix is provided; therefore, no suffix logic is inferred.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PM556-TP-ETH |
| Product ID | 3ABD00034186 |
| Brand | ABB |
| Product Type | AC500-eCo CPU Processor |
| Series | AC500-eCo |
| Memory | 512 kB |
| Digital Inputs | 8 DI |
| Digital Outputs | 6 DO transistor outputs |
| Ethernet | Integrated Ethernet interface |
| Serial Communication | 1 x RS485 |
| Option Slots | 2 |
| Supply Voltage | 24 VDC |
| Origin | China / Germany |
| Weight | 0.35 kg net; 0.51 kg gross |
| Dimensions | 74 mm x 135 mm x 82 mm |
| Core Function | Programmable logic control, integrated I/O processing, Ethernet and RS485 communication |
| Product Name | PLC-AC500-eCo |
| Invoice Description | PLC-eCo CPU PM556-TP-ETH |
| Minimum Order Quantity | 1 piece |
Industrial Network and I/O Integration
The ABB PM556-TP-ETH processes local digital input and output signals while coordinating logic execution and communication through its integrated interfaces. Ethernet provides network connectivity, while the RS485 interface supports serial communication architectures.
In addition, the two option slots allow the controller configuration to accommodate supported expansion hardware. The integrated 8 DI and 6 transistor DO channels provide local I/O capacity without requiring separate basic signal modules for these functions.
For PLC system integration, communication behavior depends on the installed firmware, connected network devices, and the configuration supported by the AC500-eCo engineering environment. Therefore, compatible firmware and expansion hardware should be verified before installation or replacement.
Frequently Asked Questions
Q: What local I/O is integrated into the PM556-TP-ETH?
A: The controller includes 8 digital inputs and 6 transistor digital outputs according to the provided ABB product description.
Q: Which communication interfaces are available on the PM556-TP-ETH?
A: The unit includes an Ethernet interface and 1 x RS485 communication interface.
Q: Can the PM556-TP-ETH accept expansion hardware?
A: Yes. The provided product information specifies 2 option slots. Compatible option hardware and firmware requirements should be checked against the AC500-eCo system configuration.
Field Installation Guidelines
Mount the ABB PM556-TP-ETH according to the mechanical requirements of the applicable AC500-eCo control assembly. Keep the controller securely fixed and maintain adequate clearance for wiring and connected communication cables.
Connect the 24 VDC supply using correctly rated conductors and observe polarity requirements. Route power wiring separately from communication and signal wiring where practical to reduce electrical interference.
Use appropriate industrial Ethernet cabling for the network connection. For RS485 wiring, follow the required bus topology and termination practices for the connected communication network. In addition, connect cable shielding and protective grounding according to the installation requirements of the complete control cabinet.
Before energizing the controller, verify terminal connections, supply voltage, I/O wiring, communication interfaces, installed option hardware, and firmware compatibility.
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