Delta AH500 - 5.1.1.2 AH500 advanced series CPU Modules (AHCPU501;511;521;531)

Chapter 5 Devices and Assigning Addresses
5-3
Programming Manual, whereas they are represented by decimal points in ISPSoft; for the floating-point
F500, one should input 500.0.
*3: The strings are notated by “$” in Chapter 5 and Chapter 6 in AH500 Programming Manual, whereas they
are represented by “ ” in ISPSoft; for the string of 1234, one should input “1234”in ISPSoft.
5.1.1.2 AH500 advanced series CPU Modules (AHCPU501/511/521/531)
Type
Device name
Number of devices
Range
Bit device
Input relay
X
2048 (AHCPU501)
X0.0~X127.15
4096 (AHCPU511)
X0.0~X255.15
8192 (AHCPU521)
X0.0~X511.15
16384 (AHCPU531)
X0.0~X1023.15
Output relay
Y
2048 (AHCPU501)
Y0.0~Y127.15
4096 (AHCPU511)
Y0.0~Y255.15
8192 (AHCPU521)
Y0.0~Y511.15
16384 (AHCPU531)
Y0.0~Y1023.15
Data register
D
393216 (AHCPU501)
D0.0~D24575.15
786432 (AHCPU511)
D0.0~D49151.15
1572864 (AHCPU521)
D0.0~D98303.15
2097152 (AHCPU531)
D0.0~D131071.15
Link register
L
393216 (AHCPU501)
L0.0~L24575.15
786432 (AHCPU511)
L0.0~L49151.15
1572864 (AHCPU521)
L0.0~L98303.15
2097152 (AHCPU531)
L0.0~L131071.15
Auxiliary relay
M
8192
M0~M8191
Special auxiliary relay
SM
4096
SM0~SM4095
Stepping relay
S
2048
S0~S2047
Timer
T
2048
T0~T2047
Counter
C
2048
C0~C2047
32-bit counter
HC
64
HC0~HC63
Word
device
Input relay X
128 (AHCPU501)
X0~X127
256 (AHCPU511)
X0~X255
512 (AHCPU521)
X0~X511
1024 (AHCPU531)
X0~X1023
Output relay Y
128 (AHCPU501)
Y0~Y127
256 (AHCPU511)
Y0~Y255
512 (AHCPU521)
Y0~Y511
1024 (AHCPU531)
Y0~Y1023
Data register D
24576 (AHCPU501)
D0~D24575
49152 (AHCPU511)
D0~D49151
98304 (AHCPU521)
D0~D98303
131072 (AHCPU531)
D0~D131071
Special data register
SR
4096
SR0~SR4095
Link register L
24576 (AHCPU501)
L0~L24575
49152 (AHCPU511)
L0~L49151
98304 (AHCPU521)
L0~L98303
131072 (AHCPU531)
L0~L131071
Timer
T
2048
T0~T2047
Counter
C
2048
C0~C2047
32-bit counter
HC
64 (128 words)
HC0~HC63
Index register
E
32
E0~E31
Constant*
Decimal system K
16 bits: -32768~32767
32 bits: -2147483648~2147483647
Hexadecimal system 16#
16 bits: 16#0~16#FFFF
32 bits: 16#0~16#FFFFFFFF
Single-precision floating-
point number
F 32 bits: ±1.17549435
-38
~±3.40282347
+ 38
Double-precision
floating-point number
DF
64 bits: ±2.2250738585072014
-308
~
±1.7976931348623157
+ 308