Auxiliary Area
■
Other PLC Operating Information
Name
Cycle Time Overrun Flag
(Operation switched)
Peripheral Servicing Too Long
Flag (Fatal error, Single CPU
Systems only)
FPD Teaching Bit
Memory Backup Battery Fail-
ure Flag
Clock Information
Name
Clock Data
298
Address
A40108
ON if the cycle time exceeds the maximum cycle time set in
the PLC Setup. (Watch Cycle Time) With a Single CPU Sys-
tem in Parallel Processing Mode, this will be the cycle time
for instruction execution.
With a Single CPU System, CPU Unit operation will stop.
With a Duplex CPU System in Duplex Mode, operation will
switch to the standby CPU Unit and operation will continue.
With a Duplex CPU System in Simplex Mode, CPU Unit
operation will stop.
A40515
Turns ON when the peripheral servicing time exceeds 2 s.
This will also cause a cycle time error and operation will
stop.
A59800
Turn this bit ON to set the monitoring time in FPD(269) auto-
matically with the teaching function.
A39511
Data from the I/O memory areas that are maintained when
power is turned OFF (HR, DM, etc.) are backed up with a
Battery. A39511 turns ON if the Battery voltage drops and
the data can no longer be maintained. The data in the I/O
memory will not be dependable when this happens.
Address
The clock data from the clock built into the CPU Unit is stored here in BCD. Read-only
A35100 to
Seconds: 00 to 59 (BCD)
A35107
A35108 to
Minutes: 00 to 59 (BCD)
A35115
A35200 to
Hour: 00 to 23 (BCD)
A35207
A35208 to
Day of the month: 01 to 31 (BCD)
A35215
A35300 to
Month: 01 to 12 (BCD)
A35307
A35308 to
Year: 00 to 99 (BCD)
A35315
A35400 to
Day of the week: 00: Sunday, 01: Monday,
A35407
02: Tuesday, 03: Wednesday, 04: Thursday,
05: Friday, 06: Saturday
Description
Description
Section 8-11
Access
Read-only
Read-only
Read/write
Read-only
Access
Read-only
Read-only
Read-only
Read-only
Read-only
Read-only
Read-only