File search instruction chapter 3 – Rockwell Automation 1772-AF3,D17726.5.2 User Manual AUX FUNCT PROM User Manual
Page 10

File Search Instruction
Chapter 3
3Ć2
Figure 3.1
Auxiliary Function Format
Function
Funtion Number:
Data Addr:
Rresult Addr:
01
010
010
Numbers shown are default values and must be replaced
by your values. The number of default address digits
originally displayed, 3 or 4, depends on the size of the
data table.
Execute Aux
Figure 3.2
Example File Search Instruction
21
0400
0405
Function
Funtion Number:
Data Addr:
Rresult Addr:
Execute Aux
Next, you will learn how to load data into addresses of the instruction.
You can load values into their respective addresses using the data monitor bit
manipulation mode of the industrial terminal. Press the key sequence
[SEARCH] [5] [3] followed by the word address. The industrial terminal will
display the 16 bits of the word address you entered. Then you enter the binary
equivalent of the values, one bit at a time (Figure 3.3).
Figure 3.3
Example of UserĆEntered Data (Binary)
Word
Bit Location
Location
17 16 15 14
13 12 11 10
07 06 05 04
03 02 01 00
Description
0400
Nor used
0 0 0 0
0 0 0 1
0 0 0 0
File Length = 10 words
0401
Available for
0 1 0 0
0 0 0 1
0 0 0 0
Address of File, lower 3 digits,
410
0402
Bit Storage
0 0 0 0
0 0 0 0
0 0 0 0
Address of File, upper 3
digits, 000
0403
Application Dependent
Data of match word