Data Logging Function - Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual

Data logging function

The following is the list of special register areas relating to the data logging function.
No. Name
SD1200 Data logging
Function memory use
condition
SD1203 Data logging file
transfer stop
information
SD1210 Data logging setting
No.1
Latest storage file
number
SD1211
SD1212 Data logging setting
No.1
Oldest storage file
number
SD1213
SD1214 Data logging setting
No.1
Internal buffer free
space
SD1215 Data logging setting
No.1
Number of processing
overflow occurrences
SD1216 Data logging setting
No.1
data logging error
cause
APPX
862
Appendix 5 List of Special Register Areas
Data stored Details
Data logging • The status of the data logging when the function memory is set
Function memory use for the storage location of data logging files are stored in the
condition 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.
Data logging file • To stop data transfer of each data logging setting number, set the
transfer stop relevant setting number with the following bit pattern. (Off:
information Disabled, On: Enabled)
b0: Setting No.1
b1: Setting No.2

b9: Setting No.10
• This setting is activated when SM1203 is turned on.
Latest storage file • The latest storage file number
number • This register is cleared to 0 by the stop command from CPU
Module Logging Configuration Tool.
Oldest storage file • The oldest storage file number
number • This register is cleared to 0 by the stop command from CPU
Module Logging Configuration Tool.
Free space size of the • The amount of free space of the internal buffer is stored in K
internal buffer (K bytes. The smaller the value, the higher the generating ratio of
bytes) 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.
Number of processing • The number of data logging processing overflow occurrences
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
Tool.
Data logging error Cause of the error generated during data logging operations is
cause 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)
b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
Set by CPU
(setting
timing)
*1
S (Status Rn
change)
*1
U Rn
*1
S (Status Rn
change) RnP
RnSF
*1
Rn
RnP
RnSF
*1
S (Status Rn
change) RnP
RnSF
*1
Rn
RnP
RnSF
*1
S (Error) Rn
RnP
RnSF
*1
S (Error) Rn
RnP
RnSF
*1
S (Error) Rn
RnP
RnSF