Rockwell Automation 8520 9/Series CNC Lathe - Manual (Page 707)

Paramacros
Chapter 28
28-33
Output flags should not be used as Input flags unless absolutely necessary.
This is because the operator/programmer has the ability to inadvertently
write data to the Output flags, whereas the Input flags cannot be written to
from the control.
Output flags are broken into four 32-bit words. The part programmer can
only assign or read the values of to these flags as integers with the
exception of parameter #1132 which may be assigned as an integer or as a
bit pattern. The paramacro output input parameters available to the part
programmer are:
#1100 -- #1131 and #1140 -- #1171
When the values of these parameters are assigned in the part program,
they should be assigned values of 1 or 0 (as bit patterns). If any integer
value (other then zero) is assigned to these parameters, it will be
interpreted by PAL as a 1. These paramacro PAL parameters are used to
pass the binary equivalent of the integer assigned to #1132. #1100 is the
first bit, #1101 is the second bit, #1102 is the third bit, and so forth up to
parameter #1131 (which is the 32nd bit). When a value is assigned to
#1132, the values assigned to #1100 - #1131 are overwritten with the
binary equivalent of #1132.
The second set of parameters, #1140 -- #1171, functions the same way.
#1132 -- #1135 and #1172 -- #1175
The control always interprets these parameters as integer values. #1132
is the only parameter that may also be interpreted by the part program
on a per-bit basis using parameters #1100 #1131.
The second set of parameters, #1172 -- #1175, functions the same way.
See the system installer’s documentation for a detailed description of the
use and operation of these input flags.
These parameters are available only on dual-process systems (see chapter
30 for details). These parameters provide a link through which common
data can be passed between the different processes of the machine. The
shared dual-process parameters are paramacro parameter numbers:
#7100 to #7199
These parameters are global. This means that the same set of parameters
can be called by any program, macro, subprogram, or MDI program in any
process.
28.3.5
Shared Dual-Process
Parameters (#7100 - 7199)