Delta AH500 - Refresh Time of Special Data Registers

AH500 Programming Manual
2-80
2.2.15 Refresh Time of Special Data Registers
Limited
to
Special data register Refresh time
SR0~SR2
The register is refreshed when the program is executed in error.
SR4
The register is refreshed when there is a grammar check error
SR5~SR6
The register is refreshed when the program is downloaded to the
PLC, or when the PLC is suppied with power and starts to run for
the first time.
SR8
The register is refreshed when there is a watchdog timer error.
SR24~SR31
The register is refreshed when the synchronization is done.
SR32
The register is refreshed when an error occurs in the master power
module.
SR33
The register is refreshed when an error occurs in the standby
power module.
SR40~SR161
The register is refreshed when an error occurs.
SR201~SR216
Users set the value and clear it.
SR220~SR226
The register is refreshed every scan cycle.
SR227~SR308
The register is refreshed when the program is downloaded to the
PLC.
SR309~SR390
The register is refreshed when the status of the PLC changes.
SR391~SR397
The register is refreshed every scan cycle.
SR402
The register is refreshed every 100μs.
SR404
The register is refreshed every 1 millie second.
SR407
The register is refreshed every second.
SR408
The register is refreshed whenever the instruction END is
executed.
SR409~SR410
Users set the value and clear it.
SR411~SR416
The register is refreshed whenever the instruction END is
executed.
SR440~SR451
The register is refreshed once the power is supplied.
SR453
The register is refreshed when an error occurs.
SR621~SR622
Users set the value and clear it.
SR623~SR638
The register is refreshed when the instruction IMASK is executed.
SR655~SR730
The register is refreshed when an error occurs in the I/○
module.
SR731
Once a low 24V voltage is detected, the status of the master
power module changes and the register will also be refreshed.
SR732
Once a low 24V voltage is detected, the status of the standby
power module changes and the register will also be refreshed.
SR1000~SR1006
Users set the value and clear it.
SR1007
Ethernet transmission speed
SR1008
Ethernet transmission mode
SR1100~SR1117
The register is refreshed every scan cycle.
SR1118~SR1128
The register is refreshed when the parameter is downloaded to the
PLC.
SR1129~SR1130
The register is refreshed when the parameter is downloaded to the
PLC, or when the PLC is supplied with power.
SR1131~SR1141
The register is refreshed when the parameter is downloaded to the