C-More EA9 HMI Controls a PLC Over Ethernet — Here's How!

Build your first C-More EA9 HMI program — add Start-Stop-Jog buttons and an indicator, then control a PLC simulator live over Ethernet Modbus TCP. ⚡ QUICK ANSWER Building a first C-More EA9 program means creating a screen in the EA9-PGMSW software, dropping on objects (pushbuttons and an indicator light), and pointing each at a PLC tag address. The panel talks to the PLC over Ethernet using Modbus TCP, so a button writes to a coil and the indicator reads one back. Here a modified Start-Stop-Jog circuit runs on a Do-More simulator so the HMI can control the inputs and monitor the output. The full step-by-step with addresses is in the written guide below. 📖 FULL STEP-BY-STEP + DOWNLOADS (project file, addresses, screenshots) https://accautomation.ca/c-more-ea9-h... ⏱️ TIMESTAMPS 0:00 - Introduction: C-More First Program (EA9 Series) 0:33 - Page Display & Zooming 1:32 - Panel and Communication Setup 2:20 - Review of the PLC Program & Addresses 3:16 - Adding Pushbuttons (Start, Stop, Jog) 7:07 - Adding an Indicator Light 8:42 - Transfer and Test the Program 📚 WHAT YOU'LL LEARN ✅ Set up the C-More EA9 panel and its Ethernet Modbus TCP communication ✅ Add Start, Stop, and Jog pushbuttons and link them to PLC addresses ✅ Add an indicator light that reads a PLC output back to the screen ✅ Match HMI object addresses to a Start-Stop-Jog PLC program ✅ Transfer the project to the panel and test it against a PLC simulator ❓ FREQUENTLY ASKED Q: How do you make your first program on a C-More EA9 HMI? A: In the EA9-PGMSW software, add screen objects like pushbuttons and an indicator, assign each to a PLC address, then transfer to the panel. The full walkthrough is in the written guide. Q: How does the C-More EA9 communicate with the PLC? A: Over its Ethernet 10/100 port using the Modbus TCP protocol — the panel reads and writes PLC coils and registers by address. Q: How do I link an HMI button to a PLC output? A: Assign the object the PLC tag address it should write or read; a pushbutton writes to a coil, an indicator reads one back. Addresses are covered in the guide. 👉 Full step-by-step, addresses & project file: https://accautomation.ca/c-more-ea9-h... 🔗 MORE RESOURCES ▶ Series: https://accautomation.ca/series/c-mor... ▶ Establishing Communication & Firmware Update:    • Master C-More HMI Programming: Live PLC Co...   ▶ PLC Beginners Guide: https://accautomation.ca/programming/... ▶ Free eBooks: https://accautomation.ca (subscribe for download) 🛒 RECOMMENDED HARDWARE ▶ Shop: https://www.automationdirect.com/ ▶ Parts Guide: https://www.accautomation.ca/purchase... 💬 Questions? Drop a comment below. 🔔 New tutorials every Monday — Subscribe and hit the bell! #PLC #LadderLogic #IndustrialAutomation #PLCProgramming #ACCAutomation #CMore #HMI #AutomationDirect #Modbus #LearnPLC Regards, Garry ACC Automation http://www.accautomation.ca We will now put our first program into the C-More EA9 HMI Panel using the C-More programming software. The Do-more Designer Simulator will be used with a modified Start Stop Jog Circuit so we can use our HMI screen to monitor the output as well as control the inputs on the PLC. Communications will be established to our C-More EA9-T10CL unit and the firmware will be updated. We will then develop our control for our PLC ladder logic circuit. The PLC logic for our circuit can be found in our post: How to Make a Start / Stop / Jog Circuit in a PLC. Our C-More EA9 HMI Panel will be communicating to the PLC simulator via Ethernet with the Modbus TCP protocol. Let’s get started. c-more first program Establishing Communication and Updating Firmware Video    • Master C-More HMI Programming: Live PLC Co...   First Program Video    • C-More EA9 HMI Controls a PLC Over Etherne...   Previously we have discussed the following in our C-More HMI Panel: System Hardware https://accautomation.ca/c-more-micro... Unboxing and Review Video    • C-More Micro HMI Hardware Unboxing and Review   Powering the Unit    • C-More Micro HMI Programming Tool Download...   Installing the Software https://accautomation.ca/c-more-ea9-h...    • C-More EA9 HMI Programming Software Instal...   System Setup Screens https://accautomation.ca/c-more-ea9-h...    • C-More EA9 HMI Series Panel System Setup S...