Named System Variables
Write the same touch-off with 30i names instead of numbers.
On a 30i-family control every system variable also has a name. [#_WZG54[3]] is the same box as #5223 — but it says what it means, and it doesn't move when the offset count changes. This is lesson 6 again, in the modern dialect.
Your turn
Repeat the touch-off from lesson 6, but use the named forms: [#_WZG54[3]] for the G54 Z origin and [#_ABSKP[3]] for the skip position. Both take an axis index, where 3 is Z.
The machine gives you
probe trips 2.5 mm below zero:
#5223 = -310#5063 = -2.5probe trips 1 mm high:
#5223 = -100#5063 = 1Your program is run once for each set of conditions. It has to work for all of them.
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This is a learning simulation — always prove out a program on the actual control before you cut metal.