Posted 28 Jun 2016 Hi All I am new here without much experience of plcs. I have a PV 550 with DH485 coms port that I want to replace another PV550 with rs232 that communicated with an SLC 5/04. Is there some way to connect the two with a cable or protocol connector? Alternatively can you connect through the printer port on a PV600? CHeers Azza Share this post Link to post Share on other sites
Posted 28 Jun 2016 Please provide the complete catalog number(s) of your old PV550 and the new PV550. Tell us how the old PV was connected to your SLC5/04 ( cables and hardware if any) The printer port on a PV600 (standard PV) can be use for uplaod/download of its program or for a printer depending on its protocol. On DH485 standard PV's the printer/AUX port can only be used for a printer. Please provide the complete catalog number of your PV600. Share this post Link to post Share on other sites
Posted 29 Jun 2016 Azza, Your best bet in my opinion would be to purchase a 1761-NET-AIC to convert the DH485 signal to a RS232 signal to then connect to the 5/04. They are not too expensive, and will last a lifetime. Dennis Share this post Link to post Share on other sites