Tormach PCNC 440 - 7.8.1.1 Defining a Subroutine

Chapter 7
148
UM10372_PCNC440_Manual_0221A
PROgRAMMiNg
The subroune keyword denes the acon associated with the subroune label. Valid subroune
keywords and their meanings are detailed in the following table.
Subroutine Keyword Meaning
Sub Begin subroune denion
Endsub End of subroune denion
Call Call the subroune
Do/while/endwhile Execute the subroune while a condion is true
Repeat/endrepeat Execute the subroune while a condion is true
If/elseif/else/endif Condionally execute the subroune
Break Break out of a while or if/elseif statement
Connue Skip remaining code and restart at top of while or repeat loop
Return Return a value
7.8.1.1 Defining a Subroutine
The sub and endsub keywords are used to dene the beginning and end a subroune. All lines of
code between the sub and endsub keywords are considered to be part of the subroune.
Sub, Endsub, Call Example:
o100 sub
G53 G00 X0 Y0 Z0 (rapid move to machine home)
o100 endsub
...
o100 call (call the subroutine here)
M02
Subrounes can either be dened in the program le or in a separate le. If the subroune is dened
in the same le as the main program that calls the subroune, it must be dened before the call
statement. For instance, this is valid:
o100 sub
G53 G00 X0 Y0 Z0 (rapid move to machine home)
o100 endsub
...
o100 call (call the subroutine here)
M02
But this is not:
o100 call (call the subroutine here)
M02
o100 sub
G53 G00 X0 Y0 Z0 (rapid move to machine home)
o100 endsub
...