Delta AH500 - Refresh Time of Special Auxiliary Relays

AH500 Programming Manual
2-38
SM Function
CPU5X0-RS2
CPU5X0-EN
CPU5X1-RS2
CPU5X1-EN
CPU560-EN2
OFF

ON
STOP

RUN
RUN

STOP
Attribute
Default
*SM2045
An error occurs when the instruction EMDRW 8
is used.
× ○ × ○ ○ OFF OFF OFF R OFF
*SM2046
There is a timeout after the instruction EMDRW
8 is used.
× ○ × ○ ○ OFF OFF OFF R OFF
*SM2047
The connection is closed after the instruction
EMDRW 8 is used.
× ○ × ○ ○ ON ON ON R ON
SM2048
↓
SM2079
EtherNet/IP I/O connection 1 error flag
↓
EtherNet/IP I/O connection 32 error flag
× × ×
V2.
00
○ OFF – – R OFF
SM2080
↓
SM2111
EtherNet/IP I/O connection 33 error flag
↓
EtherNet/IP I/O connection 64 error flag
× × ×
V2.
00
*6
○ OFF – – R OFF
SM2112
↓
SM2175
EtherNet/IP I/O connection 65 error flag
↓
EtherNet/IP I/O connection 128 error flag
× × ×
V2.
00
*4
○ OFF – – R OFF
SM2176
↓
SM2303
EtherNet/IP I/O connection 129 error flag↓
EtherNet/IP I/O connection 256 error flag
× × ×
V2.
00
*5
○ OFF – – R OFF
Note: As to the SM numbers marked “*”, users can refer to the additional remarks on special
auxiliary relays/special data registers.
*1：Only available for AHCPU530-EN, AHCPU520-EN and AHCPU510-EN
*2：Only available for AHCPU530-EN and AHCPU520-EN
*3：Only available for AHCPU530-EN
*4：Only available for AHCPU531-EN and AHCPU521-EN
*5：Only available for AHCPU531-EN
*6：Only available for AHCPU531-EN, AHCPU521-EN and AHCPU511-EN
2.2.8 Refresh Time of Special Auxiliary Relays
Limited
to
Special auxiliary
relay
Refresh time
SM0~SM1
The system automatically sets the flag to ON and resets it to OFF.
The flag is automatically set to ON when there is an operation
error.
SM5
The system automatically sets SM5 to ON and resets it to OFF.
(1) SM5 is refreshed when the program is rewritten in the PLC.
(2) SM5 is refreshed when the PLC is supplied with power and
starts to run for the first time.
SM8
The system automatically sets SM8 to ON and resets it to OFF.
SM8 is automatically set to ON when there is a watchdog timer
error.
SM9
The system automatically sets SM9 to ON and resets it to OFF.
SM9 is automatically set to ON when there is a system error.
SM10
The system automatically sets SM10 to ON and resets it to OFF.
SM10 is automatically set to ON when there is an I/O bus error.
SM20
Power supply is back to normal after a short break of insufficient
internal power supply.