Solutions for IP Address Conflicts in Remote PLC Device Access

A key characteristic of the Industry 4.0 era is networkization and automation. PLCs (Programmable Logic Controllers), as essential devices in industrial control, undertake automated control of various tasks and instructions, boasting advantages such as diverse control instructions and stable, reliable operation.

Nowadays, many enterprises demand data collection from PLCs for remote monitoring purposes, enabling the interconnection of various production elements such as equipment, personnel, materials, and energy.

 This facilitates timely detection of equipment failures and production capacity defects, allowing for informed decision-making through data analysis. However, if IP address conflicts occur in the field, data collection and communication become unfeasible, rendering subsequent actions impossible. In response, WideIOT provides a Network Segment Isolator (NAT Gateway) solution.

The Network Segment Isolator enables NAT translation and cross-network segment access, facilitating device communication and data collection while effectively resolving IP address conflicts.

 It is suitable for network communication and data collection with PLCs, HMIs, CNCs, DCSs, MESs, and other devices in production networks, offering both cross-network segment isolation and IP translation capabilities. When multiple devices in a workshop have IP addresses on different network segments, they can be unified into IP addresses on the same network segment for online programming and data collection of devices (PLCs, CNCs).

Through the Network Segment Isolator, enterprises can modify PLC IP addresses to ensure they differ from those of other PLCs, thereby replanning the network IP.

 This allows for the establishment of reliable connections between data collection objects and receivers, ensuring real-time data transmission and internet access.

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Application Scenarios

1. Resolving issues where newly purchased equipment cannot be connected to the network due to unmodifiable IP addresses.
2. Addressing communication problems between devices on different network segments through NAT translation.
3. Achieving unified planning and management of IP addresses in production networks through IP renaming.
4. Concealing the true IP addresses of devices through IP renaming to prevent network attacks.
5. Enhancing resistance to network interference and attacks through firewall network segment isolation and port restrictions.