FP0 HardwareI/O Allocation
7-2
Matsushita Electric Works (Europe) AG
7.1 I/O Number
Since input relay (X) and output relay (Y) are handled in units of 16 points, they are
expressed as a combination of decimal and hexadecimal numbers as shown below.
Example:
External input relay (X)
Decimal
1, 2, 3 . . . . . . . .
Hexadecimal
0, 1, 2, 3 A,B F. . . . . . . . . . . .
X0, X1 XF. . . . . . . . . . . . . . . . . . . . . . . .
X10, X11 X1F. . . . . . . . . . . . . . . . . . . . . .
X20, X21 X2F. . . . . . . . . . . . . . . . . . . . . .
Specifying X and Y numbers
On the FP0, the same numbers are used for input and output.
Example: The same number “X20 and Y20” can be used for input and output
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