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Old September 24th, 2014   #11
ericthegeek
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Join Date: Aug 2008
Posts: 375
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Use the "View Previous Response" function in the DMXter to look at the actual data received by the DMXter. This will tell you if the data it received from the wire matches what you think you're sending.

You can get to this by pressing the RED key from any RDM menu option.

"EUID Decode Error" means the DMXter's RDM controller saw activity on the wire during the Discovery Response Period, but that it could not find a valid EUID in the data. It could be that the checksum does not match or some similar issue.

A common problem is the responder turning off the 485 line driver's transmit enable signal before the last byte has been fully sent. You need to make sure that all 8 bits have been shifted out along with the stop bits before turning off the transmitter.
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