■
Modifying a constant
Constant = basic address + value of I0 to IE
Standard value I0 value Constant
K100
K100
K100
+
+
+
K0
K10
K-10
=
=
=
K100
K100
K90
Standard value I0 value Constant
H10
H10
+
+
HA
H10
=
=
H1A
H20
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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)
X
Decimal
1, 2, 3・・・・・・・・12
Hexadecimal
0, 1, 2, 3・・・9 A, B・・・F
・・・
・・・
X 0, X 1, ・・・・・・・・・・・・・・X F
X10, X11, ・・・・・・・・・・・・・・X1F
X20, X21, ・・・・・・・・・・・・・・X2F
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Examples of index modification
Value of index register
Post-modification relay number
K H
0 0 X0
1 1 X1
⁞ ⁞ ⁞
9 9 X9
10 A XA
⁞ ⁞ ⁞
15 F XF
16 10 X10
2.6 Description of the memory area
2-38 WUME-FP7CPUPGR-12