Industrial_Networks_of_PLC_Presentation.pptx

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1. Industrial Networks of PLC Communication Protocols and Implementation of Industrial Networks A presentation for Engineering Students

2. Introduction to Industrial Networks and PLCs PLCs coordinate sensors, actuators, and logic in automation. Industrial networks connect PLCs, HMIs, SCADA, and enterprise systems. Types evolved from serial to Fieldbus to Industrial Ethernet. Reliability and determinism are essential for real-time control.

3. Importance of Communication in Automation Real-time data exchange between controllers and devices. Centralized control improves efficiency and diagnostics. Ethernet-based networks enable enterprise connectivity. High-speed communication supports advanced automation.

4. Types of Industrial Networks Fieldbus Networks – PROFIBUS, Modbus, DeviceNet. Ethernet-based Networks – PROFINET, EtherNet/IP, EtherCAT. Wireless Networks – WirelessHART, ISA100, 5G. Each offers unique advantages for specific environments.

5. Fieldbus Networks Use serial communication (RS-485, CAN). Examples: PROFIBUS DP/PA, DeviceNet, Foundation Fieldbus. Deterministic, robust, but limited in speed and scalability. Still common in legacy and process systems.

6. Ethernet-based Networks Industrial Ethernet uses TCP/IP and switched infrastructure. Protocols: PROFINET, EtherNet/IP, Modbus TCP, EtherCAT. Advantages: high speed, interoperability, IT integration. Deterministic real-time achieved via RT/IRT and CIP Sync.

7. Wireless and IIoT Networks WirelessHART, ISA100 for sensors and process control. Wi-Fi 6 and 5G for mobile and flexible setups. Advantages: mobility and easier installation. Challenges: interference, latency, security.

8. Communication Protocols Overview Modbus: Simple, open, legacy protocol. PROFIBUS: Robust, multi-master fieldbus. PROFINET: Real-time Ethernet for automation. EtherNet/IP: CIP-based Ethernet standard. EtherCAT: High-speed deterministic fieldbus.

9. OSI Model and Industrial Relevance Layered communication model (Physical → Application). Industrial networks focus on lower layers for real-time. PROFINET and EtherNet/IP use TCP/UDP and IP layers. EtherCAT works directly at the data link layer.

10. Network Topologies Star – Common for Ethernet. Line – Used in PROFIBUS and EtherCAT. Ring – Redundant loops for fault tolerance. Tree/Mesh – Hybrid or wireless structures.

11. PLC Networking Hardware PLCs with built-in or modular communication ports. Industrial switches and routers (Siemens SCALANCE, Stratix). Gateways for protocol translation. Managed switches enable diagnostics and redundancy.

12. Siemens Network Architecture Uses PROFINET and PROFIBUS. S7 series PLCs with integrated Ethernet ports. Configured via TIA Portal with GSDML files. SCALANCE devices ensure redundancy and diagnostics.

13. Allen-Bradley Network Architecture Uses EtherNet/IP and DeviceNet. ControlLogix and CompactLogix PLC families. Studio 5000 for configuration with EDS files. Stratix switches and CIP Security enhance safety.

14. Network Configuration and Addressing Each device assigned IP or node address. Static IPs typical for PLCs; DHCP rare. Network segmentation improves performance. Device files (GSDML/EDS) simplify configuration.

15. Real-World Implementation Examples Automotive: PROFINET with Siemens PLCs. Process Industry: EtherNet/IP in chemical control. Packaging: EtherCAT for high-speed motion. WirelessHART for remote sensor integration.

16. Troubleshooting and Diagnostics Check cabling and connections first. Use diagnostic tools (Wireshark, ProfiTrace). Monitor switch logs and PLC error flags. Ensure proper addressing and configuration.

17. Cybersecurity in Industrial Networks Segmentation between OT and IT networks. Firewalls, VPNs, and device authentication. Use CIP Security and IEC 62443 standards. Monitor for anomalies and update firmware.

18. Trends and Future Developments OPC UA over TSN for unified real-time Ethernet. 5G and Private LTE for low-latency control. Edge computing and cloud integration. AI-based predictive maintenance.

19. Summary Industrial networks link PLCs to automation layers. Key protocols: Modbus, PROFIBUS, PROFINET, EtherNet/IP. Topology and configuration ensure reliability. Security and future protocols shape Industry 4.0.