1 pointYou must use two different sockets to connect to two different PLCs.
1 pointYou can also try converting the value from the counter to a Float before dividing by 1000 and placing the result in a float as below. MI 3 can be substituted for your counter value. MF1 will be = (MI3/1000)
1 pointYou can use Modbus for Vision-Jazz communication. Jazz has only one Ethernet port but it can be configured for both Modbus and PC connection (only one active at a time). Put memory segments you need to read in sequence (MI0, MI1, MI2...). Contact support for additional help to make SCADA work with all PLCs, it must be something trivial that you overlooked. I always received fast and useful advice Unitronics support.