Modbus TCP Slave Problem

[khalil]

It can provide some debug info but not the lower-level communication. It can only be used via script and won't be useful if you use profiles.

What is the problem that you have?

I have VRV gateway from Midea GW-Modbus(A), but there are somme issue with commands and feedback.
some times command from SL didnt executed also feedback comes after a slight long time.
I want to trouple shoot this issue to exactly know where the isse, is it from SL or from the VRV GW.
I check the modbus error log but there are nothing.