Appendix 2 Buffer Memory; List Of Buffer Memory Addresses - Mitsubishi Electric MELSEC iQ-R Series User Manual

Appendix 2
The buffer memory is used to exchange data between the RJ71CN91 and the CPU module, or between the RJ71CN91 and
other nodes. Buffer memory values are defaulted when the CPU module is reset or the system is powered off and on.

List of buffer memory addresses

For the RJ71CN91, buffer memory areas used vary depending on the function mode.
This section lists the buffer memory addresses for each function mode.
: Available, : Not available
Address Address
(decimal) (hexadecimal)
0 to 19 0H to 13H
20 14H
21 15H
22 16H
23 17H
24 18H
25 19H
26 1AH
27 1BH
28 1CH
29 1DH
30 to 34 1EH to 22H
35 23H
36 24H
37 25H
38 26H
39 27H
40 to 49 28H to 31H
50 32H
51 33H
52 34H
53 35H
54 36H
55 37H
56 38H
57 39H
58 3AH
59 3BH
60 to 69 3CH to 45H
70 46H
71 47H
72 to 399 48H to 18FH
400 190H
APPX
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Appendix 2 Buffer Memory

Buffer Memory
Name
System area
Data exchange control
Function mode
Save/restore configuration
System area
Baud rate
Communication status
System area
Node ID
System area
Error status
System area
CAN transmission error counter
CAN reception error counter
Baud rate display
Sampling point display
Buffer memory setting error
display
System area
Time stamp Producer/
Consumer
Year
Month
Day
Hour
Minute
Second
Day of the
week
Transmission
interval
Daily
correction
System area
NMT all nodes start delay time
SDO timeout
System area
NMT error clear node
Initial value
CANopen 11-bit CAN-ID
405 mode Layer 2
message
mode, 29-bit
CAN-ID Layer
2 message
mode
0H 0H
*5
405 11 or 29
0H 0H
*5 *5
250 250
80H 80H
*5
127 0
0H 0H
0H 0H
0H 0H
2500 2500
875 875
0H 0H
1 0
2014 0
8 0
1 0
0 0
0 0
0 0
5 0
0 0
*5
0 0
*5
500 0
*5
500 0
0H 0H
Read/Write Used/Not used
CANopen 11-bit CAN-ID
405 mode Layer 2 message
mode, 29-bit
CAN-ID Layer 2
message mode
 
Read/Write
 
Read/Write
 
Read/Write
Read/Write  
Read  
Read/Write  
Read  
 
Read
 
Read
 
Read
 
Read
 
Read
 
Read/Write
Read/Write  
Read/Write  
 
Read/Write
 
Read/Write
 
Read/Write
 
Read/Write
 
Read
 
Read/Write
Read/Write  
 
Read/Write
 
Read/Write
 
Read/Write