Machsupport Forum

Mach Discussion => Mach4 General Discussion => Topic started by: compewter_numerical on March 10, 2021, 05:21:00 PM

Title: Modbus Basic Step By Step Manual with Examples
Post by: compewter_numerical on March 10, 2021, 05:21:00 PM

Here's a document with examples of how to use basic read/write registers and coils via Modbus in Mach4 using very cheap and simple hardware. I made this for a class I am teaching and thought it might be helpful to others.

It includes the following examples:
1. Activate Output Example (Write Coil)
2. Monitor Inputs Example (Read Coils)
3. Read Register Example (Read Holding Registers 16bit)
4. Write Single Register Example (Write Single Register 16bit)
5. Write a Decimal Value using Two Registers (Write Multiple Registers 16bit)
6. LUA Mach4 Read/Write Access of Modbus Holding Registers

Title: Re: Modbus Basic Step By Step Manual with Examples
Post by: smurph on March 10, 2021, 09:50:16 PM

Wow...  Nice job!  You have the heart of a teacher, so it seem appropriate that you are teaching a class.  :)

Steve