Used software: Mach4 4.2.0.5382.
https://www.machsupport.com/ftp/Mach4/DevlopmentVersions/Mach4Hobby_Installer-4.2.0.5382.exe
Used hardware: SC-1.
STEP 1: On many systems, MS Windows can recognize the USB drivers, but if not, you can download them from here:
https://www.cnc4pc.com/pub/media/productattachments/files/Driver_FT232_USB_UART.zip
STEP 2: Connect the SC-1 Touch Screen CNC Console to the USB port, Right Click on the USB Serial port, Select Update Driver Software.
STEP 3:
STEP 4:
STEP 5: Configure/Control/Plugins
STEP 6: Configure/Plugins/Modbus
STEP 7: CONFIGURING THE CONTROL SOFTWARE: To configure, use the following sample configuration screen:
STEP 8: Add Modbus Function
STEP 9: To configure the Encoder, use the following sample configuration screen:

Mach4 configure
STEP 10: Configure/Controller/Input Signal
STEP 11: Configure/Controler/Output Signal
STEP 12: Configure/Controller/MPGs
STEP 13: You can download, install, and use this screen:
https://cnc4pc.com/product_attachments/wx4_sc-1.zip