Allen-Bradley MicroLogix 1000 User Manual

Name: Allen-Bradley MicroLogix 1000
Brand: Allen-Bradley
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Using Data Handling Instructions

9–7

Clearing S:14 before executing the FRD instruction is shown below:

CLR

CLEAR

Dest S:14

FRD

FROM BCD

Source S:13

00001234

Dest N7:0

1234

MPS displays S:13

and S:14 in BCD.

MOV

MOVE

Source N7:2

4660

Dest S:13

4660

] [

I:0

0001 0010 0011 0100

0000 0100 1101 0010

When the input condition I:0/1 is set (1), a BCD value (transferred from a 4-digit

thumbwheel switch for example) is moved from word N7:2 into the math register.

Status word S:14 is then cleared to make certain that unwanted data is not present

when the FRD instruction is executed.

Programming

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