Buffer Memory Details - Mitsubishi Electric MELSEC iQ-R Series User Manual

Buffer memory details

The following explains the buffer memory details of a high speed data logger module.
Module status area (Un\G0 to 20)
The status of each LED, parameter settings, and operation of a high speed data logger module can be checked.
Buffer memory name
RUN LED status
ERR LED status
CARD RDY LED status
CARD ACS LED status
OPR LED status
INFO LED status
Default operation setting
*1
INFO LED lighting factor
Module operating status
*1 Along with checking the INFO LED lighting factor, check the following errors, then take the corrective actions.
INFO LED lighting factor is cleared when the settings are updated.
Cause of lighting
Occurrence of sampling missing
Decrease in the free capacity of SD
memory card
Resend buffering start
Duplicate file/folder name
APPX
310
Appendix 3 Buffer Memory
Address Description
Un\G0 0: OFF
1: ON
2: Flashing
Un\G1 0: OFF
1: ON
2: Flashing
Un\G2 0: OFF
1: ON
2: Flashing
Un\G3 0: OFF
1: ON
Un\G4 0: OFF
1: ON
2: Flashing
Un\G5 0: OFF
1: ON
Un\G7 b0: ON: Account default setting is enabled
b1: ON: IP filter default setting is valid
b2: ON: Network default setting is valid
Un\G12 INFO LED lighting factor is stored.
b0: ON: Occurrence of sampling missing
b1: ON: SD memory card free capacity decrease
b2: ON: Resend buffering start
b3: ON: Duplicate file/folder name
Un\G20 0: Initializing
1: In operation
2: Stopping
3: Stopped
Corrective action
Check whether 'High Speed Sampling Failure' (X1A) and 'Processing Overload Occurrence' (X1B) is ON.
Fully verify the processing time for each function of the entire system and adjust so that no data missing occurs as
necessary. (Page 344 Processing Time)
Check the SD memory card information area (Un\G21 to 27) of buffer memory and check whether the free space
available more than 10%.
Delete unnecessary files in the SD memory card as necessary.
Check the number of bufferings of the e-mail transmission status area (Un\G5000 to 5992) and the file transfer status
area (Un\G6002 to 7457) in the buffer memory. If the number of bufferings is not 0, check the status of the network and
server.
Check if the sequential numbers of subscripts are added to created subfolders, logging files, and report names in the
SD memory card.
Check the folder switching or file switching conditions. To prevent from assigning the same name to folders or files,
perform the following actions as necessary.
• Review the information added to the folder and file name
• Adjust the change timing of device values in the CPU module