CC-Link IE Field Network – System Configuration, Installation, and Wiring for Analog I/O

The CC-Link IE Field Network supports fast, robust data exchange across various devices. For analog I/O devices, careful system configuration, proper installation, and secure wiring are essential to ensure optimal network performance. Here, we outline how to set up a CC-Link IE Field Network for analog I/O, covering system layout, installation, and best wiring practices.

---

---

1. System Configuration

Before installation and wiring, configure your system for seamless communication. Establish device locations and connectivity requirements to streamline your setup.

Define Devices and Network Requirements

• Identify Analog I/O Devices: List all analog inputs and outputs, such as sensors and actuators, connected to the network.
• Plan Network Nodes: Map device locations and roles, including PLCs, HMIs, and other controllers, to meet project needs.
• Ensure Compatibility: Check that each device supports CC-Link IE Field Network standards.

Set IP Addresses and Network Parameters

• Assign Unique IPs: Assign distinct IP addresses within the network range to prevent conflicts.
• Define Communication Settings: Adjust parameters like baud rate and device numbers for consistent communication.

Map Data Points for Analog I/O

• Analog Inputs and Outputs: Map each analog I/O channel to specific PLC or SCADA data points for precise data handling.
• Allocate PLC Device Numbers: Assign device numbers to each channel, letting the PLC monitor and control each analog I/O accurately.

2. Installation Guidelines

With your system configured, start installing components. Proper installation will ensure stability and reduce interference, making your network reliable and efficient.

Set Up Network Components

• Install Analog I/O Modules: Mount analog I/O modules securely on DIN rails within control cabinets.
• Position PLC and Adapters: Place PLCs and network adapters close to analog modules to reduce signal interference.
• Plan Cabling Pathways: Arrange cables to prevent interference and accidental disconnection.

Grounding and Shielding

• Ground Devices: Ground analog modules, control panels, and other devices to prevent voltage fluctuations and electromagnetic interference (EMI).
• Use Shielded Cables: Use shielded cables for analog signals to prevent noise; ground shielding at one end to avoid ground loops.

Environmental Considerations

• Control Temperature: Install devices in a stable environment to avoid extreme temperatures, which affect analog signals.
• Protect Against Dust and Moisture: For harsh environments, use IP-rated enclosures to keep out dust and moisture.

3. Analog I/O – Wiring Guide

Accurate wiring is essential for stable analog signal transmission across the network. Follow these best practices to maintain signal integrity.

Connect Analog Input and Output Signals

• Analog Input Wiring: Connect sensor terminals (positive and negative) to matching analog input module terminals.
• Analog Output Wiring: Wire analog output terminals to receiving device inputs (e.g., actuators or controllers).
• Signal Types: Confirm each signal type (e.g., 4-20 mA or 0-10 V) and wire accordingly for accurate reading.

Power Supply Wiring

• Use a Stable Power Source: Connect all analog modules and network devices to a stable, regulated power source.
• Separate Power and Signal Lines: Keep analog signal lines away from power lines to prevent interference.

Choose Appropriate Network Topology

• Daisy-Chain or Star Topology: Choose either a daisy-chain or star configuration based on system requirements.
  • Daisy-Chain: Ideal for a linear setup; link each device consecutively.
  • Star Topology: Best for complex networks; link each device to a central hub for stability and easy troubleshooting.

Test Connections

• Verify Voltage and Current: Test each connection with a multimeter to confirm correct voltage and current levels.
• Continuity Testing: Use a tester to check for loose or broken connections before powering up the network.

Best Practices for Analog I/O on CC-Link IE Field Network

• Label Connections: Clearly label each terminal and cable for easier maintenance and troubleshooting.
• Avoid Tension in Cables: Avoid bending cables sharply or placing them under tension to prevent damage.
• Schedule Inspections: Regularly inspect wiring and components for signs of wear or damage.

Conclusion