Hi everyone,
I am having real problems trying to get 2 v570's to talk via modbus ip at the same time as scada system reading from them both. I Currently have a PC scada system reading from the 2 v570's ok but also want one of the v570's to read from the other.
they both have 2 modbus configurations, the slave v570 has 2 scan-ex fb's one for the scada and one for the other v570 and the master v570 has one scan-ex and one read holding register fb,
i am using socket 2 for the scada system and socket 3 for the v570 using ports 502 and 503 respectivly with a socket init for socket 3, i have noticed that sb150 (socket 3 connected ) is 0
If i use some modbus scanning software i can access the slave on both ports so i'm sure the slave is ok but my read holding registers fb shows status of 5 and 0 acks.
I have attached only the modbus part of the software.
i think i must of done something stupid but i have now gone blind from looking at for so long so if anyone could cast an eye i would be very greatfull
Regards
Chris
v570modbusread slave.vlp
v570modbusread.vlp