Installation manual

1 Publication 1747-RM001G-EN-P - November 2008
Chapter 7
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.
• how to use the instruction.
Table 7.1 Application Specific Instructions
Instruction Mnemonic Instruction Name Purpose Page
BSL and BSR
Bit Shift Left and
Bit Shift Right
Loads a bit of data into a bit
array, shifts the pattern of data
through the array, and unloads
the last bit of data in the array.
The BSL shifts data to the left
and the BSR shifts data to the
right.
7-4
SQO and SQC Sequencer Output and
Sequencer Compare
Controls sequential machine
operations by transferring 16-bit
data through a mask to image
addresses.
7-6
SQL Sequencer Load Captures referenced conditions
by manually stepping the
machine through its operating
sequences.
7-12
RHC Read High Speed Clock Provides a high performance
time-stamp for performance
diagnostics and preforming
calculations such as velocity.
7-17
TDF Compute Time Difference Calculates the number of 10 µs
“ticks” between any two
time-stamps captured using the
RHC instruction.
7-17
FBC File Bit Comparison Used to monitor machine or
process operations to detect
malfunctions.
7-18
DDT Diagnostic Detect 7-18
RPC Read Program Checksum Copies the program checksum
from processor memory or from
the memory module into the
data table.
7-23