13. Program Support Functions
13.5 User Macro Specifications
342
Precautions for tool life management
(1) If the tool life management system variable is commanded without designating a group No.,
the data of the group registered at the head of the registered data will be read.
(2) If a non-registered group No. is designated and the tool life management system variable is
commanded, "-1" will be read as the data.
(3) If an unused registration No. tool life management system variable is commanded, "-1" will be
read as the data.
(4) Once commanded, the group No. is valid until NC reset.