Another plasma component...

@Jt,

In plasma world you don't work with G54. You can use the benefit's of G10 if you want to have a plate switch position in the gui. Then simply press the goto home button for plate switch position.
G10 L2 P1 X0 Y0 Z0 (clear offsets for X,Y & Z axes in coordinate system 1)

For torch height zero point. The torch zero point is 3 to 4mm above plate or product. No need to use G54.
In sheetcam you can define it several way's. Easyes't way is the way above. Your probe or thc will do the trick for you.

In fact if your probe is on, you can zero at 50mm above the plate if you want. If you set your probe trigger to -15mm it will probe to that distance. All the logic is implemented in a good thc. The next probe will be done at a your given x,y distance and probing will start at travelheigh. So not at 50mm but at 10mm if 10mm is active in your screen. So the logic is inside the thc.

linkpp or linksp i never used, does it work until today pcw? It's a opposite connection request. Very confusing, just as you argumented.

linkpp still works (on 2. but the hal file parser complains about it

Guess I was just confused because my home switch is all the way up. So going down in the Z is negitive. I was getting confused on how to set the z so it knows where to rapid to befor probing. When I ran a wire edm I used g92 a lot. It was nice because I would probe a hole and run g92 which would set its current position as XY zero. Is that the same in the plasma world. The reasion I was using a G54 was because my home position is all the way back and to the right so any move from that point is in the negitive direction.

So going down in the Z is negitive. That is correct. Z down is negative. Home switch for plasma z is often not used. Probe switch is more important for z.

G92 is almost the same. It is handy for temponary offset's. I use it for milling machine's. To offset some program's.
For plasma i don't use G92 at all, no need to at custom plasma technique.

so any move from that point is in the negitive direction.
If you have a plasma machine, one corner of the machine is always your lowest x,y value. If your plate is at the table and you move to the start corner of your plate. You will moving positive in x and y direction, if not, inverse your x or y axis.

JTK, I have a similar problem where top is 0mm and the bottom is -84mm.
For plasmac, I just use the Gmocappy touchoff to touchoff at 84mm (with G54) so that puts 0 where it should be. I used to do the same pre plasmac with a G92 but plasmac startup code clears these.
This does not get reset between sessions but a plasmac upgrade does zero it out.

On my z I have a home/limit switch and a float switch and the ohmic. I HAVE to have the Z limit switching working because my torch handle extends under the Y axis and if i retract to far it will crash into the bottom of the y axis. I was not planning on having it face this way but i ran short on length and had to. I could possibility strip the torch handle down and straighten it out and that would give me the length.

Could you not invert the Z axis so positive is down?