Chapter  2  Specifications  and System Configuration 
2-9 
Item 
AHCPU560-EN2  Remark 
MODBUS TCP connection 
number (Master) 
128 
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
o
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 
Switchover Time 
For modules on extension backplane: under 20 ms 
For remote I/O modules (Master CPU controls): under 2 s 
Communication 
port isolation 
USB and COM ports: 500 VAC 
 
 
2.2.4  14BProfiles 
2.2.4.1 AH500 Basic/Advanced CPU modules 
  AHCPU5X0-RS2 (AHCPU500-RS2/AHCPU510-RS2/AHCPU520-RS2/AHCPU530-RS2),   
AHCPU5X1-RS2 (AHCPU501-RS2/AHCPU511-RS2/AHCPU521-RS2/AHCPU531-RS2) 
Built-in communication ports*2 (RS-232 and RS-422/485) 
 
CPU530-RS2
RUN
ERROR
BUS FAULT
SYSTE M
COM1
COM2
C
O
M
C
O
M
2
1
USB
C
O
M
C
O
M
2
1
1
12
2
3
4
6
7
13
6
8
9
11
10
14
15