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This Knowledge Base provides clear answers about compressed air monitoring and SUTO iTEC products. Topics include installation, choosing the right instruments, and solving common issues. We update this section regularly with new content. If you cannot find the information you need, please contact us.

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What is Modbus/RTU?

Modbus RTU is a serial communication protocol for connecting industrial devices such as PLCs, sensors and controllers in one network.

Modbus RTU is a serial communication protocol used to connect industrial devices such as PLCs and sensors. It works with a master slave structure, where the master sends requests and the slaves respond. Data is transmitted in binary form over RS 232 or RS 485 lines, using predefined functions to read and write registers or coils.
Modbus RTU is popular because it is simple, reliable, and supported by many manufacturers, making it easy to integrate different devices into one network for real time monitoring and control.
Tags: industrial serial communication, master slave communication, Modbus RTU basics, RS485 Modbus protocol
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