Rockwell Automation 1772-LV Mini-PLC - 2/15 Programmable Controller (Series B) Programming and Operations - Manual (Page 51)

Fundamental Instruction Set
Chapter 5
5Ć14
Counter Reset Instruction
Symbol: -(CTR)-
Purpose: Resets the up counter or down counter instructions’ accumulated
value and status bits to 0.
Syntax: Programmed as an output instruction. The AC and PR values are
displayed.
Function: When the rung condition becomes:
True
Accumulated value of the specified counter is reset to 000.
Status bits (14, 15, 16, 17) are reset.
False
No action is taken.
Section D
Data Manipulation Instructions
In this section you will read how data is transferred or compared when it is
stored in the data table.
To transfer or to compare stored data located in the data table use the following
data manipulation instructions:
Get
Put
Less Than
Equal To
Get Byte
Limit Test
Get
Symbol -|G|-
Purpose: Accesses 16 bits of data from one word location in the data table. It
does not determine rung logic continuity.
Syntax: Programmed in the condition area of the ladder diagram rung
(Figure 5.5). It can be located at the beginning a rung or with one or more
conditions preceding it.
Function: Always accesses the word to which it is addressed. It displays a
decimal number beneath the instruction. The lower 12 bits (bits 0-13) of the
specified word contain the data.
Introduction
Transfer Instructions