You can write in a brief description in the "Device" column. Now open "Function Cfg's" on Menu scroll down to "Setup Serial ModBus Control", and click open the page, "ModBus Configuration".įill in the boxes at the top of the page Port Num:, Baud Rate,Įach ModBus input signal will be listed in one of the Cfg # rows. Then you must enable the correct port in:Ĭonfig/ General Config Lower left box "Serial Output, check the serial port#, input BaudRate in the box, select 8-bit 1stop. You have to check the box in the first page of Config/ Ports and Pins/Engine Configuration. Mach3 will read serial data from ModBus output. Does Mach allow for any other serial data input other than modbus? In other words could I simply send the data in ascii or hex format and map it the control the register I need in Mach? This would make things very simple as far as a micro is concerned. My PC does not have a modbus port that supports true modbus electrical signals, do I just use the serial DB9 port and an adapter so it can receive the 5 volt signals?Ģ. 1, use a small PLC that I have on hand to read the value and send it out of the modbus serial port or 2, read the potentiometer with a PIC micro and serial the data out to Mach.ġ. ![]() I have a couple of ways that I can digitize the analog value and send it to Mach. ![]() I understand that Mach is configured to operate within the modbus protocol and that the modbus analog digital value could be used to control the feed rate. ![]() I am wanting to be able to input a analog value to Mach3 to control the feed rate of my machine.
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