This tool downloads compressed control applications to local or remote Unitronics controllers. You generate a compressed application from within either U90 Ladder or VisiLogic. Your end user will be able to download the application, but will not be able to view or modify it. The tool can download applications and OS.
For starters, did you download the NI LabView modbus library?
I downloaded your application from your other post and see that you don't have Ethernet configured. Do you have an Ethernet module installed in the Jazz? If so, search the Help for "Ethernet" on how to do that.
There is also Help on what you need to do in the SI registers to get Modbus working in that same search for Ethernet.
The Modbus address for MI 19 is 40020, or Holding Register 20. Unitronics starts counting at zero, Modbus starts counting at 1 so you have to offset the address.
As an aside, you're running into a lot of difficulty because of what I call the "Jazz Wall". Jazz controllers are hard to configure for communications - everything has been tacked on to the old M90 operating system after the fact. You have to really know what you're doing.
The Vision and especially the new UniStream products are much better at PID and Modbus and easier to make work. If you do another project I would seriously recommend migrating to one of these. Your time is valuable.
Have you looked at Help/Contents which is next to Tools in the U90 menus? In the index, Analog, Thermocouple and Modbus are clearly displayed along with more references and explanations once you open the topic.
I just have a small problem, and I keep on asking some simple stuff, because I'm new to Unitronics, and programming PLCs. I have a JZ20-J-UA24, and I want to read from it, and write via labview. This requires a modbus configuration. I looked at the sample modbus configuration on that unitronics supplies with U90 ladder, and some modbus forums on unitronics, but didn't clearly understand what to do next. So suppose I want to read on labview the temperature measured via a KTC connected to the PLC's analog input channel 1 displaying its value at the level of MI 19, how can I do that? And can someone explain the configuration of the PLC because I didn't get alot what's going on, or how even to read the IP of the PLC.