Industrial communication protocol.docx Ethernet ,Can comm,Profinet,
- 1. lide: Common Industrial Communication Protocols Key protocols used in Industrial Automation & Control Systems Ethernet/IP (Ethernet Industrial Protocol) Type: Ethernet-based industrial network Developed by: Rockwell Automation, ODVA Uses TCP/IP and CIP (Common Industrial Protocol) Applications: PLCs, HMIs, I/O modules, SCADA systems Features: o High-speed real-time control & data o Reliable for control & information sharing Modbus TCP / RTU Modbus RTU: Type: Serial (RS-232/RS-485) Binary-based protocol Master-slave communication Used for industrial meters, sensors, controllers Modbus TCP: Type: Ethernet-based version Uses TCP/IP Faster, suitable for SCADA & PLCs Profibus (Process Field Bus) Type: Serial Fieldbus (RS-485) Developed by Siemens & PI Organization Variants: o Profibus DP (Decentralized Peripherals) - Fast I/O Communication
- 2. o Profibus PA (Process Automation) - Safe areas, lower speed Applications: Motors, Drives, PLCs Data Rate: Up to 12 Mbps Profinet (Process Field Net) Type: Industrial Ethernet Protocol Developed by Siemens Uses Standard Ethernet with Real-time capabilities Variants: o Profinet IO - Cyclic Data Exchange o Profinet IRT - Isochronous Real-Time for Motion Control Applications: High-speed automation, robotics CANbus (Controller Area Network Bus) Type: Serial, Message-based Protocol Developed by Bosch Speed: Up to 1 Mbps (higher with CAN-FD) Robust, real-time communication Applications: Automotive ECUs, Industrial Controls, Robotics DeviceNet Type: CANbus-based Industrial Protocol Developed by Rockwell Automation Speed: Up to 500 Kbps Topology: Trunk-line / Drop-line Power + Data in same cable Applications: Sensors, Actuators, Simple I/O devices Summary Table
- 3. Protoc ol Medium Sp ee d Topo logy Key Use Highlights Ethern et/IP Ethernet Hi gh Star PLCs, I/O, SCADA Ethernet-based, CIP Protocol Modbu s RTU RS- 232/485 Lo w Bus Simple Controllers, Sensors Simple, Widely Used Serial Modbu s TCP Ethernet Me diu m Star PLCs, SCADA Ethernet-based Modbus Profibu s RS-485 Me diu m Bus Motors, Drives, PLCs Robust Industrial Fieldbus Profine t Ethernet Hi gh Star Motion Control, Automation High-speed Industrial Ethernet CANbu s Twisted Pair Me diu m Bus Automotive, Industrial Robust, Real-time Messaging Device Net CANbus- based Me diu m Bus Sensors, Actuators Power + Data on Same Cable Selection Tips For High-Speed Ethernet Networks: Profinet, Ethernet/IP, Modbus TCP For Cost-Effective Serial Communication: Modbus RTU, CANbus, DeviceNet For Harsh Industrial Environments: Profibus, CANbus For Motion Control & Safety: Profinet IRT, EtherCAT Thank You!