Discovery response format - E1.20 RDM (Remote Device Management) Protocol Forums

hamish · November 17th, 2020

Welcome to RDM!!

In the first instance, I'd recommend equipping your self with a scope and monitoring the A/B of the 485 bus, to ensure that your response is genuinely being transmitted. If your (responder) transceiver is not reverting to RX within the specified time, you may miss subsequent controller traffic.

Stay well.

Hamish

FishFood6 · November 18th, 2020

I can't believe I didn't check it before but I check the A/B lines of the 485 bus and no data was being send. I went to work on it and got it to work. Turns out that the rs485 shield I was using wasn't working properly. Now when I check the A/B lines I see data being transferred. My RDM controller still doesn't seem to recognize it though, so the bigger problem there hasn't quite been fixed yet. Do you have any idea what may be the cause?

Thanks in advance.

November 17th, 2020	#1
hamish Member Join Date: Apr 2009 Location: Dartmoor, Devon, England Posts: 56	Discovery response. Welcome to RDM!! In the first instance, I'd recommend equipping your self with a scope and monitoring the A/B of the 485 bus, to ensure that your response is genuinely being transmitted. If your (responder) transceiver is not reverting to RX within the specified time, you may miss subsequent controller traffic. Stay well. Hamish __________________ ______________________________________________ Hamish Dumbreck

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November 18th, 2020	#2
FishFood6 Junior Member Join Date: Nov 2020 Posts: 3	I can't believe I didn't check it before but I check the A/B lines of the 485 bus and no data was being send. I went to work on it and got it to work. Turns out that the rs485 shield I was using wasn't working properly. Now when I check the A/B lines I see data being transferred. My RDM controller still doesn't seem to recognize it though, so the bigger problem there hasn't quite been fixed yet. Do you have any idea what may be the cause? Thanks in advance.