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FANUC Series 30i/300i/300is-MODEL A. Machining Center System. User's manual - page 75

16.CUSTOM MACRO

PROGRAMMING

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Buffering the next block in other than cutter compensation mode (G41, G42)

N1 X100.0 ;

> : Block being executed
: Block read into the buffer

NC statement
execution

Macro statement
execution

Buffer

N2 #1=100 ;
N3 #2=200 ;
N4 Y200.0 ;

When N1 is being executed, the next NC statement (N4) is read into
the buffer. The macro statements (N2, N3) between N1 and N4 are
processed during execution of N1.

In cutter compensation mode (G41, G42)

> N1 G01 G41 X100.0 F100 Dd ;

> : Block being executed

: Blocks read into the buffer

NC statement
execution

Macro statement
execution

Buffer

N2 #1=100 ;
N3 Y100.0 ;
N4 #2=200 ;
N5 Y150.0 ;
N6 #3=300 ;
N7 X200.0 ;

When N1 is being executed, the NC statements in the next three
blocks (up to N7) are read into the buffer. The macro statements (N1,
N4, N6) between N1 and N7 are processed during execution of N1.

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16.9

REGISTERING CUSTOM MACRO PROGRAMS

Custom macro programs are similar to subprograms. They can be
registered and edited in the same way as subprograms. The storage
capacity is determined by the total length of tape used to store both
custom macros and subprograms.

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16.10

CODES AND RESERVED WORDS USED IN CUSTOM
MACROS

In addition to the codes used in ordinary programs, the following
codes are used in custom macro programs.

Explanation
- Codes

(1) When the ISO code is used or when bit 4 (ISO) of parameter No.

6008 is set to 0

(The codes are represented in hexadecimal.)

Meaning Code

* 0AAh

= 0BDh
# 0A3h

[ 0DBh
] 0DDh

? 03Fh

@ 0C0h

& 0A6h

_ 05Fh

O 0CFh

(2) When the EIA code is used or when the ISO code is used with bit

4 (ISO) of parameter No. 6008 set to 1

Meaning Code

Code set in parameter No. 6010

Code set in parameter No. 6011

Code set in parameter No. 6012

[

Code set in parameter No. 6013

]

Code set in parameter No. 6014

Code set in parameter No. 6015

Code set in parameter No. 6016

Code set in parameter No. 6017

Code set in parameter No. 6018

For O, the same code as for O indicating a program number is used.
Set a hole pattern for each of *, =, #, [, ], ?, @, &, and _ in the ISO or
EIA code in the corresponding parameter (Nos. 6010 to 6018).
The code 00h cannot be used. The code indicating an alphabetic
character can be used for the code indicating a character listed above,
but the code can be no longer used to indicate the original character.

- Reserved words

The following reserved words are used in custom macros:

AND, OR, XOR, MOD, EQ, NE, GT, LT, GE, LE,
SIN, COS, TAN, ASIN, ACOS, ATAN, ATN, SQRT, SQR, ABS,
BIN, BCD, ROUND, RND, FIX, FUP, LN, EXP, POW, ADP, IF,
GOTO, WHILE, DO, END, BPRNT, DPRNT, POPEN, PCLOS,
SETVN, AX, AXNUM

System variable (constant) names and registered common variable
names are also used as reserved words.

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16.11

EXTERNAL OUTPUT COMMANDS

In addition to the standard custom macro commands, the following
macro commands are available. They are referred to as external
output commands.

•

BPRNT

•

DPRNT

•

POPEN

•

PCLOS

These commands are provided to output variable values and characters
through the reader/puncher interface.

Explanation

Specify these commands in the following order:

Open command: POPEN

Before specifying a sequence of data output commands, specify
this command to establish a connection to an external input/output
device.

Data output command: BPRNT or DPRNT

Specify necessary data output.

Close command: PCLOS

When all data output commands have completed, specify PCLOS
to release a connection to an external input/output device.

- Open command POPEN

The POPEN command establishes a connection to an external
input/output device. It must be specified before a sequence of data
output commands. The CNC outputs a DC2 control code.

- Data output command BPRNT

The BPRNT command outputs characters and variable values in
binary.

Number of significant decimal places

BPRNT [ a #b [c] … ]

Variable

Character

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(i) Specified characters are converted to the codes according to the

setting data (ISO) that is output at that time.

Specifiable characters are as follows:

•

Letters (A to Z)

•

Numbers

•

Special characters (*, /, +, -, ?, @, &, _)

NOTE

1 An asterisk (*) is output by a space code.
2 When using ?, @, &, and/or _, use the ISO code as

the punch code (setting data (ISO) = 1).

(ii) All variables are stored with a decimal point. Specify a variable

followed by the number of significant decimal places enclosed in
brackets. A variable value is treated as 2-word (32-bit) data,
including the decimal digits. It is output as binary data starting
from the highest byte.

(iii) When specified data has been output, an EOB code is output

according to the setting code (ISO).

(iv) <Null> variables are regarded as 0.

Example

BPRNT [ C** X#100 [3] Y#101 [3] M#10 [0] ]

Variable value
#100=0.40956
#101=-1638.4
#10=12.34
are output as follows:

- Data output command DPRNT

DPRNT [ a #b [c d] … ]

Character

Number of significant digits in the integer part

Number of significant decimal places

Variable

The DPRNT command outputs characters and each digit in the value
of a variable according to the code set in the settings (ISO).

↓

C sp sp X0000019A YFFE70000 M0000000C LF
( * * ) (410) (-1638400) (12) ( ; )

C3 A0 A0 D8 00 00 01 9A 59 FF E7 00 00 4D 00 00 00 0C 0A

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(i) For an explanation of the DPRNT command, see Items (i), (iii),

and (iv) for the BPRNT command.

(ii) When outputting a variable, specify # followed by the variable

number, then specify the number of digits in the integer part and
the number of decimal places enclosed in brackets.

For the value of a variable, as many codes as the specified
number of digits are output according to the settings one by one,
starting with the highest digit. The decimal point is also output
using the set code.

Each variable must be a numeric value consisting of up to nine
digits. When high-order digits are zeros, these zeros are not
output if bit 1 (PRT) of parameter No. 6001 is 1. If parameter
PRT is 0, a space code is output each time a zero is encountered.

When the number of decimal places is not zero, digits in the
decimal part are always output. If the number of decimal places
is zero, no decimal point is output.

When bit 1 (PRT) of parameter No. 6001 is 0, a space code is
output to indicate a positive number instead of +; if parameter
PRT is 1, no code is output.

Example
DPRNT [ X#2 [53] Y#5 [53] T#30 [20] ]

Variable value
#2=128.47398
#5=-91.2
#30=123.456
are output as follows:

(1) Parameter PRT (No.6001#1) = 0

(2) Parameter PRT (No.6001#1) = 1

D8 B1 B2 B8 2E B4 B7 B4 59 2D 39 B1 2E B2 30 30 D4 A0 B2 33 0A

↓

X128.474 Y-91.200 T023 LF

X sp sp sp 128.474 Y- sp sp sp 91.200 T sp 023 LF

D8 A0 A0 A0 B1 B2 B8 2E B4 B7 B4 59 2D A0 A0 A0 39 B1 2E B2 30 30 D4 A0 B2 33 0A

↓

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Close command PCLOS

The PCLOS command releases a connection to an external
input/output device. Specify this command when all data output
commands have terminated. DC4 control code is output from the
CNC.

- Required setting

Specify the specification number of an input/output device to be used
for the I/O device specification number.
According to the above settings, set data items (such as the baud rate)
for the reader/puncher interface.
Never specify the output device FANUC Cassette or Floppy for
punching.
When specifying a DPRNT command to output data, specify whether
leading zeros are output as spaces (by setting bit 1 (PRT) of parameter
No. 6001 to 1 or 0).
To indicate the end of a line of data in ISO code, specify whether to
use only an LF (bit 4 (CRO) of parameter 6001 is 0) or an LF and CR
bit 4 (CRO) of parameter 6001 is 1).

NOTE

1 It is not necessary to always specify the open

command (POPEN), data output command
(BPRNT, DPRNT), and close command (PCLOS)
together. Once an open command is specified at
the beginning of a program, it does not need to be
specified again except after a close command was
specified.

2 Be sure to specify open commands and close

commands in pairs. Specify the close command
at the end of the program. However, do not
specify a close command if no open command has
been specified.

3 When a reset operation is performed while

commands are being output by a data output
command, output is stopped and subsequent data
is erased. Therefore, when a reset operation is
performed by a code such as M30 at the end of a
program that performs data output, specify a close
command at the end of the program so that
processing such as M30 is not performed until all
data is output.

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16.12

RESTRICTIONS

- Sequence number search

A custom macro program cannot be searched for a sequence number.

- Single block

Even while a macro program is being executed, blocks can be stopped
in the single block mode.
A block containing a macro call command (G66, G66.1, Ggg, Mmm,
or G67) does not stop even when the single block mode is on.
Whether blocks containing arithmetic and logic operation commands
and control commands are stopped depends on the settings of bits 5
(SBM) and 7 (SBV) of parameter No. 6000 as shown in the following
table.

Bit 5 (SBM) of parameter No. 6000

0 1

Not stopped when the
single block mode is on.

Bit 7 (SBV)

parameter

No. 6000

Can be stopped in the
single bock mode.
(Variable #3003 can be
used to enable or disable
single block stop.)

Can be stopped in the
single block mode.
(Variable #3003 cannot be
used to disable single
block stop. Single block
stop is always enabled.)

Note that when a single block stop occurs at a macro statement in
cutter compensation mode, the statement is assumed to be a block that
does not involve movement, and proper compensation cannot be
performed in some cases. (Strictly speaking, the block is regarded as
specifying a movement with a travel distance 0.)

- Optional block skip

A / appearing in the middle of an <expression> (enclosed in brackets
[ ] on the right-hand side of an arithmetic expression) is regarded as
a division operator; it is not regarded as the specifier for an optional
block skip code.

- Operation in EDIT mode

By setting bit 0 (NE8) of parameter No.3202 and bit 4 (NE9) of
parameter No.3202 to 1, deletion and editing are disabled for custom
macro programs and subprograms with program numbers 8000 to
8999 and 9000 to 9999. This prevents registered custom macro
programs and subprograms from being destroyed by accident. When
the entire memory is cleared, the contents of memory such as custom
macro programs are deleted.

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