WAGO 750-815/325-000 MODBUS RTU programmable logic controller with RS-485 communication, 16-bit processor, IEC 61131-3 programming support and extended temperature operation.
Why Choose the WAGO 750-815/325-000 MODBUS Controller?
The WAGO 750-815/325-000 is a robust MODBUS RTU programmable logic controller (PLC) designed for decentralised industrial automation and control applications operating in demanding environments. As part of the proven WAGO-I/O-SYSTEM 750 series, this controller combines PLC functionality with MODBUS communication, enabling reliable machine control and distributed I/O management from a single compact device.
Developed for OEMs, panel builders and automation engineers, the controller supports IEC 61131-3 programming and allows direct access to both fieldbus and I/O data. By processing automation tasks locally, it helps reduce network traffic while improving overall system response times and reliability.
Featuring MODBUS RTU communication via RS-485, a 16-bit processor and an extended operating temperature range, the 750-815/325-000 is ideal for industrial machinery, process automation, building management and remote control applications where environmental conditions exceed standard controller specifications.
Key Advantages
Integrated PLC and MODBUS RTU controller in a single device.
Extended temperature version for demanding environments.
Supports up to 247 MODBUS field devices.
Compatible with the extensive WAGO-I/O-SYSTEM 750 module range.
Local signal processing reduces network traffic.
Programmable fault response during communication failures.
Compact DIN rail mounted design.
Suitable for decentralised automation architectures.
Key Features
WAGO-I/O-SYSTEM 750 Controller.
MODBUS RTU communication.
RS-485 interface supporting up to 115.2 kBd.
16-bit processor architecture.
IEC 61131-3 programming support.
WAGO-I/O-PRO V2.3 programming environment.
Supports up to 64 I/O modules per node.
Maximum 6000 I/O points.
Integrated diagnostic LEDs.
IP20 protection rating.
Reliable MODBUS Control for Harsh Industrial Environments
The WAGO 750-815/325-000 combines PLC functionality and MODBUS communication into a single compact controller. Its decentralised architecture allows local control of connected devices, reducing dependence on central PLC systems while improving machine responsiveness and reducing communication overhead.
The extended temperature specification makes this controller particularly suitable for industrial installations exposed to challenging environmental conditions, including outdoor enclosures, utilities infrastructure and remote automation systems.
Typical Applications
Industrial machine control.
Process automation systems.
Utilities and infrastructure projects.
Remote automation installations.
Building management systems.
Material handling equipment.
Distributed I/O architectures.
OEM machinery and control panels.
Technical Specifications
Voltage
24 V
IP Rating
IP20
Series
WAGO-I/O-SYSTEM 750
Product type
MODBUS RTU PLC Controller
CPU
16-bit processor
Communication protocol
MODBUS RTU
Communication interface
RS-485
Transmission rate
150 Bd to 115.2 kBd
Supply voltage
24 V DC (-25% to +30%)
Program memory
32 KB
Data memory
32 KB
Non-volatile memory
8 KB
Maximum I/O points
6000
Maximum fieldbus nodes
247
Maximum I/O modules
64
Protection rating
IP20
Mounting type
35 mm DIN rail
Operating temperature
-20°C to +60°C
Dimensions (H × W × D)
Approx. 100 × 50.5 × 71.1 mm
Weight
Approx. 188 g
HS Code
85371091
Country of Manufacture
Germany
Frequently Asked Questions
What is the WAGO 750-815/325-000 used for?
The controller is used for industrial automation, machine control and distributed I/O applications requiring MODBUS RTU communication and extended temperature operation.
Which communication protocol does the controller support?
The unit supports MODBUS RTU communication over an RS-485 interface.
How many MODBUS devices can be connected?
The controller can support communication with up to 247 fieldbus devices when configured as a MODBUS master.
What operating temperature range is supported?
The extended temperature version is designed for operation between approximately -20°C and +60°C.
What programming software is used?
The controller is programmed using WAGO-I/O-PRO V2.3, based on the CODESYS development environment and compliant with IEC 61131-3 standards.
Trusted by Automation Professionals Worldwide
WAGO MODBUS controllers are widely deployed in industrial automation systems where dependable communication, decentralised control and reliable operation in challenging environments are essential for long-term performance.
Voltage
24 V
IP Rating
IP20
Series
WAGO-I/O-SYSTEM 750
Product type
MODBUS RTU PLC Controller
CPU
16-bit processor
Communication protocol
MODBUS RTU
Communication interface
RS-485
Transmission rate
150 Bd to 115.2 kBd
Supply voltage
24 V DC (-25% to +30%)
Program memory
32 KB
Data memory
32 KB
Non-volatile memory
8 KB
Maximum I/O points
6000
Maximum fieldbus nodes
247
Maximum I/O modules
64
Protection rating
IP20
Mounting type
35 mm DIN rail
Operating temperature
-20°C to +60°C
Dimensions (H × W × D)
Approx. 100 × 50.5 × 71.1 mm
Weight
Approx. 188 g
HS Code
85371091
Country of Manufacture
Germany
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
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● frequently asked questions
Common questions about our products and support
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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...