Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 312)

Introduction to Programming
Chapter 10
10-34
Important: When the miscellaneous function lock feature is activated, the
control ignores M, B, S, and T words in the part program with the
exception of M00, M01, M02, M30, M98, and M99. This feature is
described on page 7-2.
2nd Miscellaneous Function (B Word)
Your system installer can use the 2nd miscellaneous functions to
distinguish a set of miscellaneous functions from the normal M code
miscellaneous functions. This manual assumes the B word is used to call
second auxiliary functions. Any alphabetic character which is not used for
other functions can be used instead of B by setting the proper AMP
parameter. For details, see documentation prepared by your system
installer, or the AMP reference manual.
The B word is designated by a two or three-digit numeric value following
address B. Unlike M codes, each block can contain only one B word.
Important: When the miscellaneous function lock feature is activated, the
control ignores M, B, S, and T words in the part program with the
exception of M00, M01, M02, M30, M98, and M99. This feature is
described on page 7-2.
Each block in a part program can be assigned up to a five-digit numeric
value following an N address. These numbers are referred to as sequence
numbers and are used to distinguish one block from another.
You can assign sequence numbers at random to specific blocks or to all
blocks. You can call blocks assigned sequence numbers later by
designating their sequence number. Sequence numbers are necessary to
make program jumps and to specify a block for subprogram calls and
returns. For details on sequence number, see page 10-9.
The O-word is used to define a program name. To use an O word as a
program name it must be the first block entered in a program. This block
can be used to identify a program when reading from a tape (when
program name is selected as “automatic” from the device setup menu).
This is useful when many programs are placed together on a single tape.
An O-word can have up to 5 numeric characters following it.
10.5.7
N Words (Sequence
Numbers)
10.5.8
O Words (Program Names)