Rockwell Automation 1772-LS_LSP,D17726.8.6 PROG/OPER MANUAL-MINI PLC-2/05 User Manual
Page 93
Math Instructions
Chapter 10
10Ć5
Figure 10.1
Primary Ladder Diagram for EAF Addition
050
000
G
051
000
G
052
000
G
053
000
G
Executive Aux
Function
Function Number:
Data Addr:
Result Addr:
01
040
060
Operand B
Operand A
Result
(Term C)
Start
Data Address
The data address (operand A) is the starting address of four consecutive data
table words that contain the:
augend
minuend
multiplicand
dividend
root
conversion word
The data table can also contain a default value when performing square roots
and conversions. The default value directs the processor to get its data from
the rung.
The operand has a format like that shown in Figure 10.2. Enter the instructions
for operand A from the keyboard of the 1770-T3 industrial terminal or through
ladder diagram instructions. Once you select the data address(s), the EAF
automatically reserves the next three addresses (four total) for the
remaining words.