Siemens SINUMERIK 802D sl Programming Manual page 135

04.07
Interrupt M96
Does not work with SINUMERIK 802D sl.
$MC_EXTERN_FUNCTION_MASK, bit6 = 0
M96 Pxxxx
Always add 0s to extend program number to 4 digits
$MC_EXTERN_FUNCTION_MASK, bit6 = 1
M96 Pxxxx
No zeros are added, even if the program number has less than 4 digits. Program
number with more than 8 digits generates an alarm.
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SINUMERIK 802D sl/840D/840D sl/840Di/840Di sl/810D ISO Milling (PGM) -- 04.07 Edition
Enhanced Level Commands
4.4 Eight- -digit program number
4-135