Why Choose the Finder 8A.04.9.024.832C OPTA CODESYS Advanced Programmable Logic Relay?
The Finder 8A.04.9.024.832C is the flagship OPTA CODESYS Advanced Programmable Logic Relay (PLR), designed to deliver PLC-level functionality within a compact DIN rail-mounted platform. Developed in collaboration with Arduino Pro and supporting the powerful CODESYS IEC 61131-3 programming environment, it combines industrial automation performance with exceptional flexibility and ease of integration.
Featuring 8 configurable digital or analogue inputs and 4 electromechanical relay outputs rated at 10 A, the controller is ideal for machine automation, HVAC systems, process control, building management and OEM equipment. Its advanced communication capabilities include Ethernet, Modbus TCP/IP, Modbus RS485, Wi-Fi and Bluetooth Low Energy, enabling seamless integration into modern connected automation systems.
The integrated AUX expansion port supports up to five Finder OPTA expansion modules, allowing users to scale I/O capacity as application requirements grow. Combined with the power of CODESYS programming, the 8A.04.9.024.832C offers a professional automation solution suitable for Industry 4.0 environments.
Key Advantages
Advanced OPTA CODESYS programmable logic relay.
8 configurable digital or analogue inputs.
4 relay outputs rated at 10 A AC1.
Full support for CODESYS IEC 61131-3 programming.
Integrated Ethernet, RS485, Wi-Fi and BLE connectivity.
Supports Modbus TCP/IP and Modbus RTU communications.
Expandable with up to 5 OPTA expansion modules.
Compact DIN rail mounted industrial design.
Key Features
Finder OPTA Advanced CODESYS PLR.
Model: 8A.04.9.024.832C.
8 configurable digital or 0-10 V analogue inputs.
4 normally open electromechanical relay outputs.
10 A AC1 relay output rating.
USB-C programming and data logging interface.
RJ45 Ethernet port with Modbus TCP/IP support.
RS485 serial communication port.
Integrated Wi-Fi and Bluetooth Low Energy.
Powerful STM32H747XI dual-core processor.
AUX expansion port for additional I/O modules.
Programmable user button.
Status LEDs for diagnostics and outputs.
DIN rail mounting according to EN 60715.
Advanced Industrial Control with CODESYS
The Finder 8A.04.9.024.832C bridges the gap between traditional smart relays and full-scale PLC systems. By supporting the internationally recognised CODESYS IEC 61131-3 environment, engineers can develop applications using Ladder Diagram (LD), Function Block Diagram (FBD), Structured Text (ST) and other industrial programming languages.
The combination of advanced communications, scalable expansion capability and industrial-grade hardware makes the OPTA Advanced CODESYS version ideal for both standalone control systems and networked Industry 4.0 applications. Built-in Ethernet, wireless connectivity and Modbus support enable seamless integration with SCADA systems, HMIs and cloud-based monitoring platforms.
Typical Applications
Industrial automation systems.
Machine building and OEM equipment.
Building management systems.
HVAC and ventilation control.
Pump and water treatment systems.
Energy monitoring and management.
Packaging machinery.
Industry 4.0 and IoT projects.
Technical Specifications
Current
8 A
Voltage
24 V
IP Rating
IP20
Series
OPTA Programmable Logic Relays
Product type
Advanced CODESYS Programmable Logic Relay
Programming environment
CODESYS IEC 61131-3
Supply voltage
12-24 V DC
Operating voltage range
10.2-27.6 V DC
Inputs
8 configurable digital or analogue (0-10 V)
Input compatibility
PNP / NPN
Outputs
4 NO relay outputs
Relay rating
10 A AC1
Maximum peak current
15 A
Protocols
Modbus TCP/IP, Modbus RTU
Processor
STM32H747XI Dual ARM Cortex-M7/M4
Expansion capability
Up to 5 OPTA expansion modules
Protection rating
IP20
Mounting type
DIN rail EN 60715
Operating temperature
-20°C to +55°C
Dimensions (W × H × D)
70 × 84 × 56.8 mm
HS Code
85371098
Country of Manufacture
Italy
Frequently Asked Questions
What is the Finder 8A.04.9.024.832C used for?
The controller is used for industrial automation, machine control, HVAC systems, building automation and OEM applications requiring flexible I/O and advanced communications.
How many inputs and outputs are available?
The unit provides 8 configurable digital or analogue inputs and 4 relay outputs rated at 10 A.
Which communication interfaces are built in?
The controller includes USB-C, Ethernet RJ45, RS485, Wi-Fi and Bluetooth Low Energy connectivity.
Can expansion modules be connected?
Yes. The AUX expansion port supports up to five compatible Finder OPTA expansion modules for additional I/O capacity.
Which programming environment does this version support?
The 8A.04.9.024.832C is specifically designed for the CODESYS IEC 61131-3 industrial automation platform.
Trusted by Automation Engineers Worldwide
Finder OPTA CODESYS programmable logic relays combine industrial reliability, modern connectivity and scalable expansion capabilities, helping engineers develop powerful automation solutions without the complexity of traditional PLC systems.
Current
8 A
Voltage
24 V
IP Rating
IP20
Series
OPTA Programmable Logic Relays
Product type
Advanced CODESYS Programmable Logic Relay
Programming environment
CODESYS IEC 61131-3
Supply voltage
12-24 V DC
Operating voltage range
10.2-27.6 V DC
Inputs
8 configurable digital or analogue (0-10 V)
Input compatibility
PNP / NPN
Outputs
4 NO relay outputs
Relay rating
10 A AC1
Maximum peak current
15 A
Protocols
Modbus TCP/IP, Modbus RTU
Processor
STM32H747XI Dual ARM Cortex-M7/M4
Expansion capability
Up to 5 OPTA expansion modules
Protection rating
IP20
Mounting type
DIN rail EN 60715
Operating temperature
-20°C to +55°C
Dimensions (W × H × D)
70 × 84 × 56.8 mm
HS Code
85371098
Country of Manufacture
Italy
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...