Appendix 3 Buffer Memory; Buffer Memory List - Mitsubishi Electric MELSEC iQ-R Series User Manual

Appendix 3
This section explains the buffer memory of a high speed data logger module.
Precautions
• Do not write any data in the "system area" of the buffer memory. Doing so may cause malfunction of the programmable
controller system.

Buffer memory list

The following table shows the buffer memory list of a high speed data logger module.
R: Read-only, W: Write-only, R/W: Readable/Writable
Address Application
Decimal
(Hexadecimal)
0 Module status area
(0H)
1
(1H)
2
(2H)
3
(3H)
4
(4H)
5
(5H)
6
(6H)
7
(7H)
8 to 11
(8H to BH)
12
(CH)
13 to 19
(DH to 13H)
20
(14H)
21 to 22 SD memory card information
(15H to 16H) area
23 to 24
(17H to 18H)
25
(19H)
26 to 27
(1AH to 1BH)
28 to 46 System area
(1CH to 2EH)
APPX
300

Appendix 3 Buffer Memory

Buffer Memory
Name
RUN LED status
ERR LED status
CARD RDY LED status
CARD ACS LED status
OPR LED status
LED status
System area
Default operation setting
System area
INFO LED lighting factor
System area
Module operating status
SD memory card total capacity
SD memory card free capacity
SD memory card usage rate
SD memory card usage capacity
Initial R/W
value
0 R
0 R
0 R
0 R
0 R
0 R
 
0 R
 
0 R
 
0 R
0 R
0 R
0 R
0 R
 