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APPX
Appendix 5 List of Special Register Areas
Data logging function
The following is the list of special register areas relating to the data logging function.
No. Name Data stored Details Set by
(setting
timing)
CPU
SD1200 Data logging
Function memory use
condition
Data logging
Function memory use
condition
• The status of the data logging when the function memory is set
for the storage location of data logging files are stored in the
following bit patterns.
b0: Setting No.1
b1: Setting No.2
b9: Setting No.10
• Each bit turns on when a relevant data logging starts and turns
off when the data logging stops or completes.
S (Status
change)
Rn
*1
SD1203 Data logging file
transfer stop
information
Data logging file
transfer stop
information
• To stop data transfer of each data logging setting number, set the
relevant setting number with the following bit pattern. (Off:
Disabled, On: Enabled)
b0: Setting No.1
b1: Setting No.2
b9: Setting No.10
• This setting is activated when SM1203 is turned on.
URn
*1
SD1210 Data logging setting
No.1
Latest storage file
number
Latest storage file
number
• The latest storage file number
• This register is cleared to 0 by the stop command from CPU
Module Logging Configuration Tool.
S (Status
change)
Rn
*1
RnP
RnSF
SD1211 Rn
*1
RnP
RnSF
SD1212 Data logging setting
No.1
Oldest storage file
number
Oldest storage file
number
• The oldest storage file number
• This register is cleared to 0 by the stop command from CPU
Module Logging Configuration Tool.
S (Status
change)
Rn
*1
RnP
RnSF
SD1213 Rn
*1
RnP
RnSF
SD1214 Data logging setting
No.1
Internal buffer free
space
Free space size of the
internal buffer (K
bytes)
• The amount of free space of the internal buffer is stored in K
bytes. The smaller the value, the higher the generating ratio of
processing overflow.
• For the trigger logging, it refers to the total capacity of internal
buffer until the data for the number of records is collected after a
trigger occurred.
• This register is cleared to 0 by the stop command from CPU
Module Logging Configuration Tool.
S (Error) Rn
*1
RnP
RnSF
SD1215 Data logging setting
No.1
Number of processing
overflow occurrences
Number of processing
overflow occurrences
• The number of data logging processing overflow occurrences
• When overflow occurs, data is lost.
• When the count exceeds 65535, it returns to 0 and starts a new
cycle.
• With "Stop" set for the operation at the time when the number of
save files exceeds the limit, a processing overflow may occur
until the stop operation is completed after the collection of data
corresponding to the specified number of storage files was
completed.
• This register is cleared to 0 when the setting is registered or by
the stop command from CPU Module Logging Configuration
Too l.
S (Error) Rn
*1
RnP
RnSF
SD1216 Data logging setting
No.1
data logging error
cause
Data logging error
cause
Cause of the error generated during data logging operations is
stored.
0: No error
Other than 0:For details on the values stored when an error occurs,
refer to the list of error codes. ( Page 703 List of error
codes)
S (Error) Rn
*1
RnP
RnSF
b1b2b3b4b5b6b7b8b9
b0
b1b2b3b4b5b6b7b8b9
b0
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