these machines are controled by a panadac 783 which has memory for 8 programs. How you can control these machines by a computer ? There is ,as I have heard, a Panasonic program host. what can it do , Is this the solution ?
It depends on what you mean by control. The host that you mention is PanaPro Software. PanaPro will upload and download programs to your machine, as well as optimize the cycle rate for the program (or groups of programs). This is a product sold by Panasonic.
There are also third party vendors that supply software as well. The only issue for them may be the age of the machines as related to ability to support.