The DMC-700 series is an older legacy unit and meant to run as a stand-alone system, It either came with analogue output or built in servo amplifiers.
It is quite a powerful unit, but a bit dated now.
Although you could run it with native commands over a serial bus, the main object was to run stand alone applications with a downloaded program into memory.
If this unit does not have the built in amps, you would need analogue type drives with built in or separate P.S. or for the motors you have.
Unfortunately, there is hardly anything in the way of an off-the-shelf PC HMI to run this unit.
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.