Chapter 2 Devices
2-3
floating-point number
DF
64 bits: ±2.2250738585072014
-308
~
±1.7976931348623157
+308
*1: The decimal forms are notated by K in the device lists in chapters 5 and 6, whereas they are
entered directly in ISPSoft, for example, for K50, simply input 50.
*2: The floating-point numbers are notated by F/DF in the device lists in chapters 5 and, whereas
they are represented by decimal points in ISPSoft, for example, for F500, simply input 500.0.
*3: The strings are notated by “$” in chapters 5 and 6, whereas they are represented by “ ” in
ISPSoft, for example, for “1234”, simply input 1234.
2.1.1.2 AH500 Advanced CPU Modules (AHCPU501/511/521/531)
Bit
device
Input relay X
Output relay Y
Data register D
Link register L
Word
device
Input relay X
Output relay Y
Data register D
Link register L
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