Connect a CLICK PLC to a GS4 VFD via Modbus TCP

https://www.automationdirect.com/VFD - (VID-DR-0174)

*************** BUG ALERT *************
We found an issue with the CLICK PLC that prevents Modbus TCP from working properly with a GS4 drive.
We discovered the GS4 drive closes the TCP connection pretty quickly after CLICK sends a command. But the CLICK does NOT open this connection back up as it should. We expect a release that will fix this issue in the September to October 2020 time frame.” This notice will be removed when the issue is resolved.

Meanwhile, there are a couple temporary workarounds:

1) Add a timer and a Receive command to check the status of the drive (408449). I put a timer in for 250ms. This keeps the TCP connection alive and prevents the problem from occurring.

2) Changing the com port setup "Server Inactivity timeout" from 60 seconds to 1 second. The drive waits a little over 2 seconds before it FINs the TCP connection on its side. So CLICK closing at 1 second negates this. If the program is sending messages faster than 1 second, the connection won't go down at all.

*****************************************

Learn how to connect a CLICK PLC to a GS4 Variable Frequency Drive (VFD) via Modbus TCP in this live tutorial Video/Demo from AutomationDirect.com.

Our FREE Practical Guide to Programmable Logic Controllers eBook: https://go.pardot.com/l/548202/2018-0...
To learn more visit https://www.automationdirect.com/

Check out all of our videos at https://www.AutomationDirect.com/Videos

To subscribe: https://www.youtube.com/user/automati...
Facebook:   / automationdirect  
Twitter:   / automationdirec  
LinkedIn:   / automationdirect  

**Prices were valid at the time the video was released and are subject to change.


Related AutomationDirect.com part numbers: GS4-21P0,GS4-22P0,GS4-23P0,GS4-25P0,GS4-27P5,GS4-2010,GS4-2015,GS4-2020,GS4-2025,GS4-2030,GS4-2040,GS4-2050,GS4-2060,GS4-2075,GS4-2100,GS4-41P0,GS4-42P0,GS4-43P0,GS4-45P0,GS4-47P5,GS4-4010,GS4-4015,GS4-4020,GS4-4025,GS4-4030,GS4-4040,GS4-4050,GS4-4060,GS4-4075,GS4-4100,GS4-4125,GS4-4150,GS4-4175,GS4-4200,GS4-4250,GS4-4300