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Author Topic: mach3 modbus or serial communication limitations  (Read 2418 times)

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mach3 modbus or serial communication limitations
« on: August 05, 2011, 11:33:24 AM »
Hello friends,
i want to control mach3 totally from external switches so obviously, the inputs and outputs of 2 ports are not enough. The one solution is modbus i guess.
I know a little bit of uC programming and use of their i/O and want to know where should i start with mach3 modbus. I want to know how it works and what are the limitations of using it. Can just two pins on the port can create a way between 20 switches and mach3?

i don't have any prior knowledge about serial communication. I don't even know if there is any difference between modbus and serial com.
Any help from there?

regards.
jasminder singh
Re: mach3 modbus or serial communication limitations
« Reply #1 on: August 05, 2011, 11:35:05 AM »
Or i was just thinking about hacking a keyboard to make a panel and use the oem triggers.

Offline BR549

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Re: mach3 modbus or serial communication limitations
« Reply #2 on: August 05, 2011, 12:13:39 PM »
Why not simply use a standard or MINI  key board and setup hotkeys for your functions. I use an industrial keyboard that has 24 Fkeys and CAN do more with alternate hotkeys.

Or use the Pokeys usb I/O unit and add the keypad matrix switches (May require programming the I/o functions)

Why reinvent the wheel the old one rolls very smooth(;-) TP