AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |
Back to Blog
Usb Mdk 2 4 Mach34/24/2021
Contact Now Warranty Exhibitions Why Select Us Video Factory Team Certifications.
Usb Mdk 2 4 H3 Free And ItBecause it has special advantages such as it is free and it support multi-language and also work very steady too.Even though the cost is a little higher, customers still like to select it. The last image shows you the window where you can check the communication. This will not use any modbus library it is just proof of working. You will end up with ability of mach3 to read input pin on arduino. But if this will work for you then adding full modbus library for proper comunications shouldnt be any problem. Small think about modbus Modbus is software protocol not hardware, so you can use it not only ower rs232 or rs485 but also let say uart usart. Doesnt matter the amount of connections the hardware protocol uses, basicaly it boils down to one comunication line for half duplpex and two for full duplex. The comunication of mach3 with arduino will be done using uart. But you can buy USB to rs485 adapter and connect to rx tx lines and it should be basicaly the same think. Arduino connected to PC one led but you dont need the LED (it is just indicator so i know what information should be send back from arduino) and cable so you can ground a pin on arduino. Led should have resistor in series, i just coudnt be bothered and the led suvived. On left side of image is the USB to rs485 adapter (you dont need that). Add Tip Ask Question Comment Download Step 1: Owerview of Concept I did my test with arduino mini pro. This was the inspiration for my test and the code is from this page:,2. First software for arduino: The whole think is very simle, arduino recives in this case any 8 bites and replies with 01 04 02 00 00 78 f0 or 01 04 02 00 01 b9 30 In real comunication these packets are modbus reply for 01 04 00 00 00 01 31 ca question. So we will send request from mach3 to read input register and arduino replyes with data containing 1 or 0. Attached image is from the tester it will automaticaly show you port on which is arduino connected if you have more ports connect and disconnect arduino you will see which port dissapear and then appeard in the list again. When the Port is open no other program can communicate to arduino you will need to CLOSE it first. This code is basicaly copy form the page i used as inspiration. We could send any 8 bytes to arduino as you can see from program, it is just to properly answer so arduino doesnt care for question in this case. Add Tip Ask Question Comment Download Step 4: Mach3 Side 1 First in your modbus tester press CLOSE button. Otherwise Mach3 will be unable to communicate with arduino (it will not be able comunicate on already OPEN COM port). Add Tip Ask Question Comment Download Step 5: Mach3 Side 2 In Mach 3 go to top menu-setup serial modbus controll and in popup window press test modbus. Mach3 will not add automaticaly any choice for Port Num.: but this will be the same port you have seen in the modbus tester application so if it was showing Com5 write in Port Num.: 5. As usualy you need to pres OPEN to allow for communication on the com port. Add Tip Ask Question Comment Download Step 6: If Any Trouble I am using a software called free-serial-analyser.
0 Comments
Read More
Leave a Reply. |