Looking through my FRAMEVAR.VA, I found this. The highlighted positions are the three points defining my origin, x, and y (positions are world 0). I don't know how to make use of this information, but it's definitely there.
edit: posting this removed the highlighting. COMP_POS1.NODEDATA[13].NODE_POS, COMP_POS1.NODEDATA[14].NODE_POS, and COMP_POS1.NODEDATA[15].NODE_POS are origin, x, and y, respectively.
edit #2: I looked at another robot and on that one, it's 7, 8, and 9 instead of 13, 14 and 15.
[TPFDEF]COMP_POS1 Storage: CMOS Access: RW : PATH =
Field: COMP_POS1.NODEDATA ARRAY[72] OF PATH1_NODE_T
Field: COMP_POS1.NODEDATA[1].NODE_POS Access: RW: XYZWPREXT = Uninitialized
Field: COMP_POS1.NODEDATA[2].NODE_POS Access: RW: XYZWPREXT = Uninitialized
Field: COMP_POS1.NODEDATA[3].NODE_POS Access: RW: XYZWPREXT = Uninitialized
Field: COMP_POS1.NODEDATA[4].NODE_POS Access: RW: XYZWPREXT = Uninitialized
Field: COMP_POS1.NODEDATA[5].NODE_POS Access: RW: XYZWPREXT = Uninitialized
Field: COMP_POS1.NODEDATA[6].NODE_POS Access: RW: XYZWPREXT = Uninitialized
Field: COMP_POS1.NODEDATA[7].NODE_POS Access: RW: XYZWPREXT =
Group: 1 Config: N U T, 0, 0, 0
X: 970.456 Y: -1038.993 Z: -667.294
W: 179.165 P: -.390 R: 25.433
Field: COMP_POS1.NODEDATA[8].NODE_POS Access: RW: XYZWPREXT =
Group: 1 Config: N U T, 0, 0, 0
X: 2455.328 Y: -1021.317 Z: -679.000
W: 179.166 P: -.389 R: 25.433
Field: COMP_POS1.NODEDATA[9].NODE_POS Access: RW: XYZWPREXT =
Group: 1 Config: N U T, 0, 0, 0
X: 2470.603 Y: 1067.160 Z: -681.771
W: 179.296 P: -.095 R: 71.475
Field: COMP_POS1.NODEDATA[10].NODE_POS Access: RW: XYZWPREXT = Uninitialized
Field: COMP_POS1.NODEDATA[11].NODE_POS Access: RW: XYZWPREXT = Uninitialized
Field: COMP_POS1.NODEDATA[12].NODE_POS Access: RW: XYZWPREXT = Uninitialized
Field: COMP_POS1.NODEDATA[13].NODE_POS Access: RW: XYZWPREXT =
Group: 1 Config: N U T, 0, 0, 0
X: 1513.966 Y: -883.466 Z: 13.721
W: -179.757 P: -.470 R: 92.472
Field: COMP_POS1.NODEDATA[14].NODE_POS Access: RW: XYZWPREXT =
Group: 1 Config: N U T, 0, 0, 0
X: 2330.211 Y: -862.026 Z: 16.359
W: -179.757 P: -.470 R: 50.829
Field: COMP_POS1.NODEDATA[15].NODE_POS Access: RW: XYZWPREXT =
Group: 1 Config: N U T, 0, 0, 0
X: 1456.289 Y: 638.774 Z: 30.119
W: -179.757 P: -.470 R: 50.829
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