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Hi Mike, Since our VFDs are communicating using MODBUS RTU the limitation is 31 (If you need more then that you will have to add another modbus port and implement the communication manually) I\Os (digital and analog) can be red using communication so it seems that your paln should work. Please note that since it uses a serial communication it is recommanded using the "read parameter" element instead of reading all values from every VFD and so improve the response time

PLC and HMI not in 2020, But it is always Engineer's Choice! Because every engineer knows that HMI, PLC and SCADA Systems is the future of Industrial Automation.

YES!!! no time frame right now, but yes :-)

i will try it

I just installed the app on my iPhone and tried it out. It works! And it's pretty cool. Great work!