How do I set up automatic switching between PLCs of the same type using Ethernet communications when one PLC is unavailable.

If communication to one PLC is lost, the HMI has the ability to look for, find, and establish communications with another PLC.

To do this, the PLCs on the network must all use the same protocol. If no PLC has communication established when the project is originally downloaded, the HMI project will not automatically search for another PLC.

See Tech Note 5081, “Auto-Switching Between PLCs.”

Software Downloads & Upgrades

• EBPro

FAQ Sheets

• Local / Remote PLC
• My HMI Can’t Connect to my PLC

Manuals & Guides

• EBPro Programming Manual
• EBPro Quick Start Guide
• HMI5000L Series Installation Guide
• HMI5000P Installation Guide

Tech Notes

• Auto Switching between redundant PLCs
• Multiple HMIs connecting to one PLC
• PLC No Response

Videos

• Product Overview
• Quick Start: Part 1 – Introduction and Installation
• Quick Start: Part 2 – Create a Project
• Quick Start: Part 3 – Creating Windows
• Quick Start: Part 4 – Creating Static Elements
• Quick Start: Part 5 – Creating Digital Objects
• Quick Start: Part 6 – Create and Group Analog Objects
• Quick Start: Part 7 – Simulation Mode
• Troubleshooting ‘PLC No Response’ on Maple Systems HMIs
• Troubleshooting ‘PLC No Response’ on Maple Systems HMIs

Sample Projects

• Quick Start Guide Project Files
• Troubleshooting PLC No Response

Controller Information Sheets

• Controller Information Sheets

Communication Cables

• Communication Cables