Introduction, Appendix a, Set and clear – Rockwell Automation 1794-Lxxxx PhaseManager User Manual
Page 55: Equipment phase instructions, Appendix

Publication LOGIX-UM001B-EN-P - April 2010
55
Appendix
A
Equipment Phase Instructions
(PSC, PCMD, POVR, PFL, PCLF, PXRQ, PRNP, PPD, PATT, PDET)
Introduction
This appendix provides a description of each equipment phase instruction in
this format.
Set and Clear
This manual uses set and clear to define the status of bits (booleans) and
values (non-booleans).
If an operand or parameter support more than one data type, the bold data
types indicate optimal data types. An instruction executes faster and requires
less memory if all the operands of the instruction use the same optimal data
type, typically DINT or REAL.
This section
Provides this type of information
Instruction name
identifies the instruction
Operands
lists all the operands of the instruction
Instruction structure
lists control status bits and values, if any, of the instruction
Description
describes the instruction’s use
defines any differences when the instruction is enabled and disabled, if appropriate
Arithmetic status flags
defines whether or not the instruction affects arithmetic status flags
Fault conditions
defines whether or not the instruction generates minor or major faults
if so, defines the fault type and code
Execution
defines the specifics of how the instruction operates
Example
provides at least one programming example in each available programming language
includes a description explaining each example
This term
Means
set
the bit is set to 1 (ON)
a value is set to any non-zero number
clear
the bit is cleared to 0 (OFF)
all the bits in a value are cleared to 0