93
96-8000 Rev AC
May 2010
Programming
The following letters cannot be used to pass parameters to a macro subroutine:
G, L, N, O or P.
Macro Variables
There are three categories of macro variables: system, global, and local.
Macro constants are floating point values placed in a macro expression. They
can be combined with addresses A-Z or they can stand alone when used within
an expression. Examples of constants are .0001, 5.3 or -10.
Local Variables
Local variables range between #1 and #33. A set of local variables is available
at all times. When a call to a subroutine with a G65 command is executed, lo
-
cal variables are saved and a new set is available for use. This is called “nest
-
ing” of local variables. During a G65 call, all new local variables are cleared
to undefined values and any local variables that have corresponding address
variables in the G65 line are set to G65 line values. Below is a table of the local
variables along with the address variable arguments that change them:
Variable:
Address:
Alternate:
1
A
2
B
3
C
4
I
5
J
6
K
7
D
I
8
E
J
9
F
K
10
I
11
H
J
Variable:
Address:
Alternate:
12
K
13
M
I
14
J
15
K
16
I
17
Q
J
18
R
K
10
S
I
20
T
J
21
U
K
22
V
I
Variable:
Address:
Alternate:
23
W
J
24
X
K
25
Y
I
26
Z
J
27
K
28
I
29
J
30
K
31
I
32
J
33
K
Variables 10, 12, 14-16 and 27-33 do not have corresponding address argu-
ments. They can be set if a sufficient number of I, J and K arguments are used
as indicated above in the section about arguments. Once in the macro subrou-
tine, local variables can be read and modified by referencing variable numbers
1-33.
When the L argument is used to do multiple repetitions of a macro subroutine,
the arguments are set only on the first repetition. This means that if local vari
-
ables 1-33 are modified in the first repetition, then the next repetition will have
access only to the modified values. Local values are retained from repetition to
repetition when the L address is greater than 1.
Calling a subroutine via an M97 or M98 does not nest the local variables. Any
local variables referenced in a subroutine called by an M98 are the same vari-
ables and values that existed prior to the M97 or M98 call.
Summary of Contents for 96-8000
Page 15: ...6 96 8000 Rev AC May 2010 Mill Warning Decals ...
Page 16: ...7 96 8000 Rev AC May 2010 Safety Lathe Warning Decals ...
Page 41: ...32 96 8000 Rev AC May 2010 ...
Page 93: ...84 96 8000 Rev AC May 2010 ...
Page 129: ...120 96 8000 Rev AC May 2010 ...
Page 133: ...124 96 8000 Rev AC May 2010 ...
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