Mitsubishi Electric Q26UD(E)HCPU User Manual page 600

(27)Data logging
Number Name Meaning
Data logging
SD1940,
setting No.1 Latest file No.
SD1941
Latest file No.
Data logging
SD1942, setting No.1
Oldest file No.
SD1943 Oldest file
No.
Data logging
setting No.1 Free buffer
SD1944
Free buffer space
space
Number of
Data logging
times
setting No.1
SD1945 processing
Processing
overflow
timeout count
occurred
Data logging
setting No.1 Data logging
SD1946
Data logging error cause
error cause
Data logging
setting No.1 Data logging
Data logging file transfer
SD1947
file transfer function error
function error code
code
598
Explanation
This register stores the latest file number. This register is
cleared to "0" by a stop command from the CPU Module
Logging Configuration Tool.
This register stores the oldest file number. This register is
cleared to "0" by a stop command from the CPU Module
Logging Configuration Tool.
This register stores free buffer space (unit: 1K byte).
If the value is small, processing overflow may occur.
For trigger logging, this register stores the buffer size until
when data are collected by the number of records after
trigger.
This register is cleared to "0" by a stop command from the
CPU Module Logging Configuration Tool.
This register stores the number of times that data logging
processing overflow occurred.
If an overflow occurs, some data may not be collected.
When the storage value reaches to 65535, count is resumed
from "0".
If Stop is specified for Operation occurring when number of
saved files is exceeded, processing overflow may occur
from when data collection by the number of specified
storage files is completed and until when data logging is
stopped.
This register is cleared to "0" by the registration of the
setting or a stop command from CPU Module Logging
Configuration Tool.
This register stores the cause of an error that occurred
during data logging.
• 0: No error
• Other than 0: For values stored at error occurrence, refer
to the errors that occurs in data logging described in the
following. ( QnUDVCPU/LCPU User's Manual (Data
Logging Function))
This register is cleared to "0" by the registration of the
setting or a stop command from CPU Module Logging
Configuration Tool.
This register stores the error code of the latest error
detected during execution of the data logging file transfer
function.
• 0: No error
• Other than 0: For values stored at error occurrence, refer
to the errors that occurs in data logging described in the
following. ( QnUDVCPU/LCPU User's Manual (Data
Logging Function))
This register is cleared to "0" by the data logging start
command from the CPU Module Logging Configuration Tool.
Corresponding
Set by
ACPU
(When Set)
D9
S (Status
New
change)
S (Status
New
change)
S (Status
New
change)
S (Error) New
S (Error) New
S (Error) New
Corresponding
CPU
QnUDV
LCPU
QnUDV
LCPU
QnUDV
LCPU
QnUDV
LCPU
QnUDV
LCPU
QnUDV
*1
LCPU