Yaskawa i80M Connecting Manual - Manual (Page 262)

Supplementary Explanation
(a) External work number designation
If the work number is outside the range from O through 99999 in the external work num-
ber input state or the designated work number does not exist, the completion output is
not generated (no particular alarm signal output is generated).
Work number input is acceptable after the external reset, M02, or M30 function is ex-
ecuted. The newly entered work number takes effect after reset processing.
(b) External tool offset
The offset number designated by a program is to be corrected. At the time of single
block stoppage, the tool offset number of the terminated block is changed.
Select either of the following external inputs to determine whether addition is to be ap-
plied to the current offset amount or the current correction amount is to be replaced by
external data (use the axis selection bit).
When EDAS2 = O, addition (l NC) occurs.
When EDAS2 = 1, replacement
occurs.
When defining the offset address, use the external data axis selection signals
EDAS2).
(c) External coordinate system shift
When the currently chosen external tool offset number is 00, the value designated by the
data is added to the coordinate system shift memory or the memory
contents are replaced by the designated value.
Signal exchange timing is exactly the same as for external tool offset.
NOTE
The general procedure for exercising the external tool offset and exter-
nal coordinate system shift functions is to designate the M
code with a part program and use that M code to turn ON the