ABB ci501-pnio-xc:s500, bus-module 8di/8do/4ai/2ao,

ABB dc551-cs31:s500,bus module 8di/16dc

Why Choose the ABB DC551-CS31:S500,BUS Module?

SKU: DC551-CS31Alt SKU: DC551-CS31MPN: 1SAP220500R0001
Price
List Price ex VAT
Your Price
Manufacturer Lead Time Please contact us for a delivery time before you order
Get the best trade prices Trade exclusive

Create a trade account to unlock exclusive pricing, special offers and more.

Trade pricing is personalised to your account

Manufacturer Lead Time

£235.00

Why Choose the ABB DC551-CS31:S500,BUS Module?

The ABB DC551-CS31:S500,BUS module provides reliable and flexible I/O expansion for your ABB AC500 PLC system. With 8 digital inputs and 16 configurable digital inputs/outputs, this CS31 slave module is designed to meet the demands of complex industrial automation applications, even in harsh environments. Its expandable design supports connection of up to 7 additional I/O modules, enabling scalable and adaptable control solutions.

This module offers significant advantages for system integrators and maintenance engineers seeking dependable and adaptable I/O solutions:

  • Robust design for operation in challenging industrial settings.
  • Flexible configuration with 8 DI and 16 configurable DI/DO.
  • Scalable expansion capabilities for growing system needs.
  • Seamless integration with ABB AC500 PLC systems via the efficient 1-wire CS31 interface.
  • Compliant with relevant industry standards for performance and safety.

Key Features

  • 8 Digital Inputs (24VDC)
  • 16 Configurable Digital Inputs/Outputs (24VDC, 0.5A)
  • CS31 Slave Module for AC500 PLCs
  • Expandable up to 7 additional I/O modules
  • 1-wire CS31 Interface for efficient communication
  • Robust design for industrial environments

Applications

  • Industrial Automation and Control Systems
  • Process Automation
  • Machine Control
  • Robotics
  • Harsh Environment Applications

Frequently Asked Questions

While designed for the AC500 platform, compatibility may vary depending on the specific PLC model and firmware version. Consult the ABB compatibility documentation or contact our technical support for confirmation.
Additional I/O modules are connected via the CS31 bus using standard ABB cabling and connectors, creating a daisy-chain configuration. Detailed connection instructions can be found in the product manual.

Technical Specifications

Part Number DC551-CS31:S500,BUS
Digital Inputs 8 (24VDC)
Digital Inputs/Outputs 16 (24VDC, 0.5A)
Communication Interface CS31 (1-wire)
Mounting DIN Rail
HS Code 85389091
Country of Manufacture Germany

● Service Agreements

Credit Accounts

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.

 Tick  Priority sourcing and supply support

 Tick  Flexible payment terms for qualifying organisations

 Tick  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.

● latest blog

Discover  our latest insights and
expert advice

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

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.

LED Controls: Danfoss Drives Authorised Partner

LED Controls: Danfoss Drives Authorised Partner

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...

LED Controls: Your Complete Control Panel Solution

LED Controls: Your Complete Control Panel Solution

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...