CNC 8035 - Programming manual - Fagor Automation

12.5 Subroutine instructions
A subroutine is a part of a program which, being properly identified, can be called from any position
of a program to be executed.
A subroutine can be kept in the memory of the CNC as an independent part of a program and be
called one or several times, from different positions of a program or different programs.
Only subroutines stored in the CNC's RAM memory can be executed. Therefore, to execute a
subroutine stored in a PC connected through one of the serial lines, copy it first into the CNC's RAM
memory.
If the subroutine is too large to be copied into RAM, it must be converted into a program and then
the EXEC instruction must be used.
(SUB integer)
The SUB instruction defines as subroutine the set of program blocks programmed next until reaching
the RET subroutine. The subroutine is identified with an integer which also defines the type of
subroutine; either general or OEM.
The OEM subroutines are treated like the general ones, but with the following restrictions:
They can only be defined in OEM programs, having the [O] attribute. Otherwise, the CNC will
display the corresponding error.
Error 63 : Program subroutine number 1 thru 9999.
To execute an OEM subroutine using CALL, PCALL or MCALL, it must be inside an OEM
program. Otherwise, the CNC will display the corresponding error.
Error 1255 : Subroutine restricted to an OEM program.
There can not be two subroutines with the same identification number in the CNC memory, even
when they belong to different programs.
(RET)
Range of general subroutines SUB 0000 - SUB 9999
Range of OEM (manufacturer's) subroutines SUB 10000 - SUB 20000
The mnemonic RET indicates that the subroutine which was defined by the mnemonic SUB, finishes
in this block.
( SUB 12) ; Definition of subroutine 12
G91 G01 XP0 F5000
ZP1
XP0
ZP1
(RET) ; End of subroutine
(CALL (expression))
The mnemonic CALL makes a call to the subroutine indicated by means of a number or by means
of any expression that results in a number.
Programming manual
PROGRAM CONTROL INSTRUCTIONS
Subroutine instructions 12.
CNC 8035
·T· MODEL
(SOFT V16.3X)
·259·