Modbus is a widely used industrial serial communication protocol. This category features user manuals and guides for various Modbus-compatible control devices.
Modbus is a de facto standard serial communication protocol originally published in 1979 by Modicon for use with its Programmable Logic Controllers (PLCs). Today, it is an open standard overseen by the Modbus Organization. Because of its robustness, openness, and easy deployment, it has become one of the most commonly used means of connecting industrial electronic devices worldwide.
Our Modbus category curates user manuals, configuration guides, and technical instructions for a wide array of Modbus-compatible products. This includes Remote Terminal Unit (RTU) relays, advanced temperature and humidity sensors, gateways, and dual I/O modules from various manufacturers. Whether you are wiring an RS-485 network, configuring baud rates and parity, or setting up Modbus TCP communication, these guides provide the essential steps needed to integrate Modbus-enabled hardware into your industrial automation systems securely and efficiently.
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Modbus is a widely used industrial communication protocol. Devices categorized under Modbus include Programmable Logic Controllers (PLCs), RTU relays, temperature sensors, gateways, and I/O modules from various automation electronics manufacturers.
You can download user manuals, installation guides, and configuration instructions for a variety of Modbus-compatible devices directly on this category page.
No, Modbus is an open serial communication protocol originally developed in 1979. Modern automation manufacturers build Modbus communication functionality into their industrial control products to allow them to talk to each other.
Typically, Modbus RTU devices connect via RS-485 or RS-232 serial lines. You must consult your specific device's user manual for pinouts, holding register maps, baud rate, parity, and slave ID configuration settings.