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

6.4

Buffer Memory

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

Buffer memory list

The following table shows the buffer memory list of a recorder module.
R: Read-only, W: Write-only, R/W: Readable/Writable
Address Purpose
Dec (Hex)
0 Module status area
(0H)
1
(1H)
2
(2H)
3
(3H)
4
(4H)
5
(5H)
6 to 11
(6H to BH)
12
(CH)
13 to 20
(DH to 14H)
21 to 22 SD memory card information area
(15H to 16H)
23 to 24
(17H to 18H)
25
(19H)
26 to 27
(1AH to 1BH)
28 to 46 System area
(1CH to 2EH)
47 to 54 Network connection status area
(2FH to 36H)
55 to 56
(37H to 38H)
57 to 58
(39H to 3AH)
59 to 60
(3BH to 3CH)
61 to 69
(3DH to 45H)
6 RECORDER MODULE (DETAILED SPECIFICATIONS)
94
6.4 Buffer Memory
Name
RUN LED status
ERR LED status
CARD RDY LED status
System area
OPR LED status
INFO LED status
System area
INFO LED lighting factor
System area
SD memory card total capacity
SD memory card free capacity
SD memory card usage rate
SD memory card usage capacity
IP address (string notation)
IP address
Subnet mask
Default gateway
System area
Initial R/W
value
0 R
0 R
0 R
 
0 R
0 R
 
0 R
 
0 R
0 R
0 R
0 R
 
 R
0 R
0 R
0 R
 