Rockwell Automation 1772-L8_LW_LWP_LX_LXP,D17726.5.8 User Manual - Manual (Page 179)

EAF Math Instructions
Chapter 14
14-7
Figure 14.4
EAF Addition Function Input and Display Rungs
060
359
EXECUTE AUX
FUNCTION
FUNCTION NUMBER:
DATA ADDR:
RESULT ADDR:
01
040
060
G
061
130
G
062
000
G
063
000
G
040
256
G
041
384
G
042
000
G
043
000
G
050
102
G
051
G
746
052
000
G
053
000
G
Enter values for operands A and B. Entry of Operand A = 256384 and
Operand B = 102746 produces the Result 359130 for addition
(Figure 14.4) or 153638 for subtraction. Figure 14.5 shows how the words
are stored in the data table.
Figure 14.5
EAF Addition Format in the Data Table After Execution
10350-I
X 0 0 0
17 16 15 14 10 7 4 3 13
2 0
3
0
1
7
0
5
8 6
4
0 0
0 0
0
0
0 0 0
0 0
0
4 2
6
0
0 0 0
0 0
1
3 5
3
0
9
Data
0
040
041
042
043
050
051
052
Result
Address
060
061
062
063
053
Operand A
Operand B
Result
Address
Error Message
If the result has more than 12 digits, bit 14 is set (1) indicating overflow.
Underflow does not exist for either addition or subtraction.