If it helps, attached are images of my 5000 parameter settings for dnc that are working for me with dnc4pc. I’m not using a cal motion device so it may not help with that but dnc4pc has a free trial so you could atleast use it to test it out to see if it’s a parameter issue or something with the cal motion device.
When I first set mine up I only set up the parameters for DVC1 but they were needed for DVC2 on mine for the control side rs232 like you showed. I did try a pre made cable that did not work then tried one from Amazon called EZSync and it worked.
Also, the sequence you initiate the dnc transfer matters, doing it out of order will cause a feed rate error. You need to select tape, hit cycle start, then send the program. It will start the program as soon as you hit send on the dnc device. I suggest setting your rapid override to feedrate when trying the dnc for the first time. If your not ready and it’s at 100% you will find out if your offsets are correct real quick.
I know a lot of folks are happy with devices like the cal motion box, but to offer up another idea I put one of those cheap fanless pc’s inside the control cabinet and mounted the on-off switch through a small hole drilled in the side of the case. I then added a monitor above the control and keyboard under it. I have the pc on my wireless network and use one-drive to share my files with my office pc. I do most programming in the office on fusion360 but can make changes at the machine as well as I have fusion on it too and don’t have to scroll through a little screen to find the right program to send.