Rockwell Automation 1761-HHP-B30 MicroLogix 1000 with Hand-Held Programmer (HHP) - Manual (Page 227)

13 Chapter
13–1
Using Application Specific Instructions
This chapter contains general information about the application specific
instructions and explains how they function in your application program.
Each of the instructions includes information on:
•
what the instruction symbol looks like
•
typical execution time for the instruction
•
how to use the instruction
•
how to enter the instruction
In addition, the last section contains an application example for a paper
drilling machine that shows the application specific instructions in use.
Application Specific Instructions
HHP
Display
Mnemonic
Function
Code
Name Purpose Page
BSL 150 Bit Shift Left
Loads a bit of data into a bit array, shifts the pattern of data to the
left through the array, and unloads the last bit of data in the array.
13–3
BSR 151 Bit Shift Right
Loads a bit of data into a bit array, shifts the pattern of data to the
right through the array, and unloads the last bit of data in the
array.
13–4
SQO
SQC
152
153
Sequencer Output
Sequencer Compare
Control sequential machine operations by transferring 16-bit data
through a mask to image addresses.
13–6
SQL 154 Sequencer Load
Capture referenced conditions by manually stepping the machine
through its operating sequences.
13–12
STD
STE
155
156
Selectable Timer
Interrupt Disable
Selectable Timer
Interrupt Enable
Output instructions, associated with the Selectable Timed
Interrupt function. STD and STE are used to prevent an STI from
occurring during a portion of the program.
13–17
STS 157
Selectable Timer
Interrupt Start
Initiates a Selectable Timed Interrupt. 13–18
INT
LD INT 158 Interrupt Subroutine Associated with Selectable Timed Interrupts or HSC Interrupts. 13–19
These instructions simplify your program by allowing you to use a single
instruction or pair of instructions to perform common complex operations.
Since these are output instructions (except LD INT), they do not have LD,
AND, and OR equivalents.
In this chapter, you will find a general overview preceding groups of
instructions. Before you learn about the instructions in each of these groups,
we suggest that you read the overview. This chapter contains the following
overviews:
•
Bit Shift Instructions Overview
•
Sequencer Instructions Overview
•
Selectable Timed Interrupt (STI) Function Overview
About the Application
Specific Instructions