2.6 Description of the memory area
■
Modifying a constant
Constant = basic address + value of I0 to IE
I0K100
Standard value
K100
K100
K100
■
Notes on index modification of a relay number
● For the external relay (X), external output relay (Y), and internal relay (R), when using index
modification on relay numbers, be aware that the last digit of the relay number is
hexadecimal and the higher digits are decimal.
<Example> For external input (X)
Decimal
1, 2, 3・・・・・・・・12
Hexadecimal
0, 1, 2, 3・・・9 A, B・・・F
■
Examples of index modification
K
0
1
⁞
9
10
⁞
15
16
2-38
I0 value
Constant
+
K0
=
+
K10
=
+
K-10
=
X
Value of index register
I0H10
Standard value
K100
H10
K100
H10
K90
H
0
1
⁞
9
A
⁞
F
10
I0 value
+
HA
+
H10
X 0, X 1, ・・・・・・・・・・・・・・X F
X10, X11, ・・・・・・・・・・・・・・X1F
X20, X21, ・・・・・・・・・・・・・・X2F
Post-modification relay number
X0
X1
⁞
X9
XA
⁞
XF
X10
WUME-FP7CPUPGR-12
Constant
=
H1A
=
H20