File search instruction chapter 3 – Rockwell Automation 1772-AF3,D17726.5.2 User Manual AUX FUNCT PROM User Manual

Page 17

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File Search Instruction

Chapter 3

3Ć9

Figure 3.10

Example File Search Logic

RTO

0030

030

15

0040

000

0.1

PR 015

AC 000

040

17

030

15

0030

PR 015

RTR

AC 000

G

0041

000

PUT

21

0031
0040

Execute Aux

Function

Funtion Number:
Data Addr:
Rresult Addr:

Figure 3.11

Example Data Entry

Word

Bit Location

Location

17 16 15 14

13 12 11 10

07 06 05 04

03 02 01 00

Hex Equivalent

0031

0032

0033

0034

0040

0041

.

.

.

0 0 0 0

0 0 0 0

0 0 0 0

0 0 0 0

0 0 0 0

0 0 0 0

.

.

.

1 0 0 1

0 0 0 1

0 0 0 0

0 0 0 0

0 0 0 0

0 0 0 0

.

.

.

1 0 0 1

0 0 1 1

0 0 0 0

0 0 0 0

0 0 0 0

0 0 0 0

.

.

.

1 0 0 1

0 0 0 1

0 0 0 0

0 0 0 0

0 0 0 0

0 0 0 0

.

.

.

999

131

000

0000

0000

0000

where values are astored as follows:

0031 file length of 999

0032 address of instrucction file, lower 3 digits (131)

0033 address of instruction file, upper 3 digits (000)

0034 match word data

0040 zero at start up

0131 instruction file words all containing zeros

.

.

.

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