02-26-2026, 07:03 AM
(02-25-2026, 10:57 AM)admin Wrote: can you take photo of your RS485 debug tool, i want to see all commands how send and received.
I made further deep testing with 2 different RS485 adapters:
1. HW-519 (TTL <=> RS485) => The problem appears. I need to put at least 2ms delay between the response from the first device before sending to the E16. Otherwise, the E16 would not respond.
2. JZK adaptor (USB <=> RS485) : everything is fine, no issue , no need for an additional grace period
From the timings I see on my debug output, the pymodbus library doesn't automatically respect the 1.75 ms grace period.
So, I think the Kincony E16V3 is fine !
Thanks for the help.
So, the lessons learned:
1. Some RS485 adaptors are better than others
2. Manage the grace period yourself in the code

