Ok, I followed up with the distributor for TECO, and it looks like now I'm stuck with the Mach4 portion of this project:
I am not sure how to proceed with incomplete manuals. I cant find documentation on this ModBus Plugin with Mach4.
Mach4 Scripting Manual.PDF
5.7 ModBus .... Completely blank Chapter
Mach4 installation Manual.PDF
All Plugins included as Appendices.... Nothing for Modbus Plugin.
I have the registers now for the VFD that I need to write to, and I found the info for using LUA to script.
I need info for creating Modbus functions, what is the difference between:
Read Coils
Read Input Discreats
Read Input Registers
Read Holding Registers
Write Coils
Write Registers
Also, I need to know how to use one of these functions in LUA after i name it inside the MODBUS plug in.
This Is what I need to do:
For TECO 7300CV JNTHBCBA0002AC-u-
1. Control Start/Stop Write to Register 101H, Bit 0
2. Control FWD/ REV Write to Register 101H, Bit 1
3. Set the Frequency Write to Register 102H
4. Read the Frequency Read Register 124H
5. Monitor the drive for error codes Read Register 121H