- HMI Model: cMT-3108xp
- EasyBuilder Pro Version: V6.09.02.338
- Serial Number or supplier: Rohtek Automation
For some reason I cannot get EBPro Online Simulation to work with Codesys. It behaves just the same as an Offline Simulation.
When I download the application to the HMI, everything works fine. I can see Codesys variable values change as I interact with the HMI. However, when just running an Online Simulation, the simulation does not appear to be communicating with Codesys.
Is there a setting I could be missing to allow this to work?
Hi @JDControlsLLC,
What device are you attempting to communicate with and which Codesys driver are you using in your EBPro project (Weintek built-in CODESYS, CODESYS V3 (Ethernet))?
It’s Weintek built in Codesys and I’m attempting to communicate with the device itself (the Weintek HMI).
Recently I did a project for a customer that used an Allen Bradley PLC with a Weintek HMI and I was able to do online simulation before downloading to the HMI and everything worked as expected.
With this project, the online simulation does not communicate with Codesys. As a simple example, a numeric display just shows a value of zero rather than the value of that variable in Codesys. If I download the EBPro project to the HMI, it works correctly.
Hey @JDControlsLLC,
Online simulation will not work with our “Weintek built-in CODESYS” driver because it communicates with the CODESYS runtime built-in to our device. Since the PC does not have our CODESYS runtime built-in, it cannot communicate with it during online simulation.
So does this mean the only way to test HMI changes is to download to the HMI every time?
I can do that but it’s a bit cumbersome. Seems like it’d be more efficient to run a quick simulation of things to verify the control/animation is what I expected, then download to the HMI. Is there currently no way to achieve this if I’m using the Weintek built-in Codesys?
To test changes faster, you can deselect “Runtime” within the download menu of EBPro and uncheck the “reset” options. This should allow the HMI project to download in just a few seconds.
