Why Choose the Distributed Automation PLCs [1SAP121200R0071]
The PM556-TP-ETH is an AC500 series programmable logic controller featuring 512kB memory, 8 digital inputs, and 6 digital transistor outputs. It supports Ethernet communication and operates on a 24V DC supply. The unit includes one RS485 port and two option slots for expanded functionality, ensuring compatibility with a range of industrial automation applications.
Trusted By Customers Worldwide
"Specified by UK panel builders for dependable control." Controls Engineer, UK
Technical Specifications
Model
PM556-TP-ETH AC500 Programmable Logic Controller.
Memory
512 kB programme memory.
Digital Inputs/Outputs
8 DI / 6 DO, transistor output.
Communication Ports
1 x RS485, 1 x Ethernet.
Expansion
2 x option slots for additional modules.
Supply Voltage
24 V DC.
Category
Distributed automation PLC.
Frequently Asked Questions
What is the memory capacity of the PM556-TP-ETH controller?
The PM556-TP-ETH controller has a programme memory capacity of 512 kB.
How many digital inputs and outputs does the PM556-TP-ETH have?
The controller features 8 digital inputs and 6 digital outputs.
What communication ports are available on the PM556-TP-ETH?
The PM556-TP-ETH is equipped with 1 x RS485 and 1 x Ethernet communication port.
Can the PM556-TP-ETH be expanded with additional modules?
Yes, the controller has 2 option slots for additional modules.
What is the supply voltage for the PM556-TP-ETH?
The supply voltage for the PM556-TP-ETH is 24 V DC.
Is the PM556-TP-ETH compliant with any standards?
See the manufacturer's data sheet for standards and approvals.
Model
PM556-TP-ETH AC500 Programmable Logic Controller.
Memory
512 kB programme memory.
Digital Inputs/Outputs
8 DI / 6 DO, transistor output.
Communication Ports
1 x RS485, 1 x Ethernet.
Expansion
2 x option slots for additional modules.
Supply Voltage
24 V DC.
Category
Distributed automation PLC.
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Can you help specify the correct part?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Do you have stock for urgent orders?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What are your delivery times and costs?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What about warranties, returns and faulty items?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...