TimWilborne Posted June 6, 2006 Report Posted June 6, 2006 This is a continuation of THIS topic I was reading in the installation instructions of the RM7890A and noticed it has a DH-485 port. I have searched Honeywells site and can find no specifications on it. Does anyone know anything about how you could communicate with it and what information you can get from the RM7890A over it? Quote
Steve Bailey Posted June 6, 2006 Report Posted June 6, 2006 DH485??? Are you sure? It wouldn't surprise me to find an RS-485 port that could communicate via some Honeywell protocol or possibly Modbus, but DH485 is a proprietary Rockwell protocol. Quote
rlp122 Posted June 6, 2006 Report Posted June 6, 2006 (edited) I think this might be what you are referring to. See pages 5-8. Edited June 6, 2006 by rlp122 Quote
TimWilborne Posted June 6, 2006 Author Report Posted June 6, 2006 That looks like it. Thanks TW Quote
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