Modbus RTU Insights

What is Modbus RTU?

Modbus RTU is a serial communication protocol widely used for connecting industrial automation devices. It's commonly used for transmitting data between control devices (like PLCs) and sensors or other instruments. RTU (Remote Terminal Unit) signifies that it is intended for communication between automation devices and it uses a compact, binary representation of the data making it efficient for serial communication. It employs a master/slave architecture where one device (the master) initiates communication and the other devices (slaves) respond to the master's requests.

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What other technologies are related to Modbus RTU?

Modbus RTU Competitor Technologies

Modbus TCP

Modbus TCP is an alternative Modbus protocol that uses Ethernet for communication. It offers similar functionality to Modbus RTU but over TCP/IP networks, thus competing for similar applications.

mentioned alongside Modbus RTU in 21% (955) of relevant job posts

Modbus TCP/IP

Modbus TCP/IP is essentially the same as Modbus TCP and is a direct competitor as it provides Modbus functionality over Ethernet networks.

mentioned alongside Modbus RTU in 22% (419) of relevant job posts

DNP3.0

DNP3 is a communication protocol often used in SCADA systems, especially in the utilities sector. It competes with Modbus RTU in applications requiring remote data acquisition and control, particularly where more advanced features are needed.

mentioned alongside Modbus RTU in 27% (141) of relevant job posts

BACnet MS/TP

BACnet MS/TP is a communication protocol used in building automation systems. It competes with Modbus RTU in applications requiring building control and automation.

mentioned alongside Modbus RTU in 39% (69) of relevant job posts

Ethernet/IP

Ethernet/IP is an industrial Ethernet protocol that provides real-time control and information. It competes with Modbus RTU, especially in applications where faster communication and more advanced features are required.

mentioned alongside Modbus RTU in 3% (559) of relevant job posts

BACnet IP

BACnet IP provides building automation functionality over IP networks and competes with Modbus RTU, especially in larger networked building automation scenarios.

mentioned alongside Modbus RTU in 14% (110) of relevant job posts

Profinet

Profinet is an industrial Ethernet protocol for automation, offering real-time communication. It competes with Modbus RTU in automation applications requiring higher performance and advanced features.

mentioned alongside Modbus RTU in 3% (458) of relevant job posts

Profibus

Profibus is a fieldbus standard used in industrial automation. It competes with Modbus RTU in various applications requiring field-level communication.

mentioned alongside Modbus RTU in 2% (504) of relevant job posts

Modbus RTU Complementary Technologies

OPC (UA, DA, HDA, A&E)

OPC standards (UA, DA, HDA, A&E) provide interoperability between different systems and can be used alongside Modbus RTU to provide a standardized interface for data access and exchange. Modbus RTU data can be accessed through an OPC server.

mentioned alongside Modbus RTU in 100% (103) of relevant job posts

OPC

OPC provides a standard interface for accessing data from various sources, including Modbus RTU. It complements Modbus RTU by enabling interoperability with other systems.

mentioned alongside Modbus RTU in 1% (196) of relevant job posts

RS-485

RS-485 is a communication standard for serial communication, and it's the physical layer upon which Modbus RTU often operates. Therefore, it is complementary.

mentioned alongside Modbus RTU in 2% (104) of relevant job posts