Delta AH500 - Page 40

Chapter 2 Specifications and System Configuration
2-7
Item
AHCPU501/511/521/
531-RS2
AHCPU501/511/521/
531-EN and AHCPU521-
DNP
Remark
Link registers [L]
AHCPU501: 24576 (L0~L24575)
AHCPU511: 49152 (L0~L49151)
AHCPU521: 98304 (L0~L98303)
AHCPU531: 131072 (L0~L131071)
Timers [T]
2048 (T0~T2047)
Counters [C]
2048 (C0~C2047)
32-bit counter [HC]
64 (HC0~HC63)
Data register [D]
AHCPU501: 24576 (D0~D24575)
AHCPU511: 49152 (D0~D49151)
AHCPU521: 98304 (D0~D98303)
AHCPU531: 131072 (D0~D131071)
Stepping relay [S]
2048 (S0~S2047)
Index register [E]
32 (E0~E31)
Special auxiliary relay [SM]
4096 (SM0~SM4095)
Special data register [SR]
4096 (SR0~SR4095)
Serial communication port
Two RS-232/RS-
485/RS-422
communication ports
One RS-232/RS-
485/RS-422
communication port
Ethernet port
-
10/100 M
MODBUS TCP
connection number
(Server)
-
32
For FW V2.02 or later:
AHCPU501-EN：48
AHCPU511-EN：64
AHCPU521-EN：96
AHCPU521-DNP：96
AHCPU531-EN：160
MODBUS TCP
connection number
(Client)
-
AHCPU501-EN: 16
AHCPU511-EN: 32
AHCPU521-EN: 64
AHCPU521-DNP: 64
AHCPU531-EN: 128
Socket TCP connecton
number
- 8
Socket UDP connection
number
- 8
SMTP connection number
-
8
USB port
Mini USB
Storage interface
SD Card (SD 1.0)
Remote RUN/STOP
The setting range is X0.0~X511.15.
Real-time clock
Years, months, days, hours, minutes, seconds, and
weeks; real-time clock can be retained after power-
off for up to 30 days (the environment temperature
25
o
C / 77
o
F)
Real-time clock accuracy
Maximum deviation per month
-20
o
C / -4
o
F: -117 seconds
25
o
C / 77
o
F: 52 seconds
60
o
C / 140
o
F: -127 seconds
Weight
253g
252g
Communication
port isolation
COM1 and COM2 ports:
500 VAC
COM1 and COM2 ports:
500 VAC
Ethernet: 1500 VAC