Vic Posted September 7, 2022 Report Share Posted September 7, 2022 I have a unistream US5-B10-TA30 plc......... ihave setup MODBUS TCP connection to v570 plc using port 502------ but as this plc will be used as a replacement upgrade i need to use UDP --- i have set up as best i can but can not connect --- ? are there examples or help to set -------up vic Quote Link to comment Share on other sites More sharing options...
dierkens Posted September 7, 2022 Report Share Posted September 7, 2022 I don’t understand the ‘use of replacement’ and the need for UDP in regards to MODBUS. Can you outline this please. Quote Link to comment Share on other sites More sharing options...
MVP 2021 Flex727 Posted September 7, 2022 MVP 2021 Report Share Posted September 7, 2022 My guess is that Vic's V570 is set up to communicate via MODBUS over UDP and he doesn't want to (or can't) modify the V570 program to change the socket protocol. Therefore he needs the UniStream PLC to communicate with the V570 using UDP. Quote Link to comment Share on other sites More sharing options...
Vic Posted September 8, 2022 Author Report Share Posted September 8, 2022 Hi I have V570 PLC [ET1]Master and [ET1]21 Slaves [10xV570-11 V280] as the ET1 cards are no more available. If I upgrade my V570 PLC Master to Unistream (unistream communicates with ET1 and ET2 cards) then slave replacement of ET1 I can use ET2 card [ ET1 cards don't communicate with ET2] hence the unistream master which communicates with ET1 or ET2 . As I am using UDP in Master V570 -then replacement to unistream I will not have to re-program slaves. Kind regards Vic Quote Link to comment Share on other sites More sharing options...
Vic Posted September 8, 2022 Author Report Share Posted September 8, 2022 UNISTREAM UDP ----JOE TAUSER MVP2021 [Posted 3 February]------- seem to be in the same place as me when he answer someone question in regards to UDP- Socket selection But also could not find any documents in help on how to move the data kind regards vic Quote Link to comment Share on other sites More sharing options...
Vic Posted September 8, 2022 Author Report Share Posted September 8, 2022 I have no problem replacing the Present Master V570 with any range of Unitronic plc that can [a] communicate UDP --[b]-communicate to ET1 or ET2 card Quote Link to comment Share on other sites More sharing options...
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