WAGO 750-816/300-000 MODBUS RTU programmable logic controller with RS-232 communication, 16-bit processor, IEC 61131-3 programming support and compatibility with WAGO-I/O-SYSTEM 750 modules.
£435.36
The WAGO 750-816/300-000 is a powerful MODBUS RTU programmable logic controller (PLC) designed for decentralised industrial automation, machine control and distributed I/O applications. As part of the highly respected WAGO-I/O-SYSTEM 750 series, it combines PLC functionality and MODBUS communication within a compact DIN rail mounted controller, providing a cost-effective solution for industrial control systems.
Developed for OEMs, machine builders and automation engineers, the controller enables local processing of automation tasks while reducing network traffic. With support for IEC 61131-3 programming standards, engineers can access all fieldbus and I/O data directly to create efficient and scalable automation solutions.
Featuring MODBUS RTU communication via RS-232, a 16-bit processor and support for up to 64 I/O modules, the 750-816/300-000 is ideal for industrial machinery, process automation, material handling systems and building management applications. Its compact design simplifies installation while supporting flexible system expansion.
The WAGO 750-816/300-000 combines a MODBUS fieldbus coupler with integrated PLC functionality, allowing decentralised control of industrial processes. By processing signals locally, the controller reduces communication overhead while improving response times and overall system efficiency.
Its IEC 61131-3 compliant programming environment enables engineers to develop sophisticated automation applications while maintaining compatibility with established industrial programming standards. This makes the controller ideal for distributed control systems requiring reliability, flexibility and scalability.
| 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-232 (D-Sub 9 socket) |
| 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 | 0°C to +55°C |
| Dimensions (W × H × D) | 50.5 × 71.1 × 100 mm |
| Weight | Approx. 185 g |
| HS Code | 85371091 |
| Country of Manufacture | Germany |
The controller is used for industrial automation, machine control and distributed I/O applications requiring MODBUS RTU communication via RS-232.
The unit supports MODBUS RTU communication over an RS-232 interface.
The controller can communicate with up to 247 MODBUS field devices when operating as a master.
Up to 64 WAGO I/O modules can be connected within a single node configuration.
The controller is programmed using WAGO-I/O-PRO V2.3, based on the CODESYS development environment and compliant with IEC 61131-3 standards.
WAGO MODBUS controllers are widely deployed in industrial automation systems where reliable communication, decentralised control and scalable I/O integration are essential for efficient long-term operation.
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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...