Yaskawa YASNAC PC NC Programming Manual - Manual (Page 70)

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YASNAC PCNC Programming Manual Chapter 3: Movement Control Commands
(b) Command format
• For the commands specified in and after the G90 block, the dimension values specified
following an address of X, Y, Z, (* a, b) are treated as absolute values.
• For the commands specified in and after the G91 block, the dimension values are
treated as incremental values.
FIGURE 3.2.1.1: Absolute/Incremental Commands (G90, G91)