Workpiece zero point offset value???

[rylanrouge]

When using Fanuc 16i control, I'm trying to better understand the workpiece zero point offset value. For example: when using G55, X = variable number #5241, Y=#5242, and Z=#5243. At the top of the program I have the work shift = G90G10L2P2X0.0Y0.0Z0.0
If I were to use the axis workpiece zero point offset for G54.1P1, at the top of my program I would have G90G10L20P1X0.0Y0.0Z0.0 (X=#14001, Y=#14002, Z=#14003).
What determines whether you use the variable numbers #7001 for G54.1P1 or variable numbers #14001 for G54.1P1?

[dcoupar]

It depends on the options that are installed on your control:

Standard work coordinates are stored in system variables #5201 - #5328.

Extended (48) work coordinates (G54.1 P1 to P48) are stored in system variables #7001-#7948.

Extended (300) work coordinates (G54.1 P1 to P300) are stored in system variables #14001 - #19988.

In any case, if you're using G10L2PnXnYnZn or G10L20PnXnYnZn to set your offsets, you don't need to be concerned with what the variable #s are being written to unless you need to read them from a user macro.

I don't know if this is the answer you're looking for or not...

[rylanrouge]

I am using the variables for a macro in the program. We're using an angle head and I'm using the X offset to add the length of the tool to the centerline of the spindle. Basically, if a machine has the extended offsets #7001-#7948 and #14001-#19988, and I'm using G54.1P1, how do I know which variable to use, since I'm able to use both?

[dcoupar]

Do you have 48 work coordinates or 300? The way I read it, if you have 48, you use #7001 for G54.1P1X. If you have 300, you can use either #7001 or #14001.

I would MDI in a G10L20P1X12.3456 and then check OFFSET > MACRO for the values stored in #7001 and #14001. My guess is it's in both variables.

[sinha_nsit]

Even without any G10 command, contents of 7000 series and 14000 series can be compared. Considering Fanuc's way of doing things, both series should be available for first 48 additional WCS.