Rockwell Automation 1772-LV Mini-PLC - 2/15 Programmable Controller (Series B) Programming and Operations - Manual (Page 54)

Fundamental Instruction Set
Chapter 5
5Ć17
NOTE: Do not place compare instructions between the get byte and limit test
instruction. The get byte and limit test instructions only work with octal values.
Function: The rung condition becomes:
True
If the specified byte value is between the two reference values.
False
If the specified byte value is outside the reference values.
Get Byte/Put
Symbol: Figure 5.9
Purpose: Duplicates eight bits of data from the get byte instruction to the
lower byte of the put instruction.
Function: The value in the get byte instruction is displayed in octal form. The
value in the put instruction is displayed in hexadecimal form.
Syntax: Figure 5.9
NOTE: Do not use the upper byte of the put address for storage because it will
be a random value.
Figure 5.9
Get Byte/Put Test Comparison
013
XYZ
1110
B P
XXX
Section E
Arithmetic Instructions
You can do 3-digit arithmetic operations using your controller. The basic
operations used are:
Addition
Subtraction
Multiplication
Division
See Figure 5.10.
Additional functions are available by purchasing EAF PROM instructions
through your local Allen-Bradley Distribution or Sales Representative.
Introduction