Mitsubishi Electric MELSEC iQ-R Series User Manual page 186

■Receive/Transmit process data (Un\G10000 to Un\G10293)
The RJ71CN91 can send/receive up to 42 messages pre-defined by the user.
CIF can be used to send messages. ( Page 70 Data/RTR transmission via CIF)
• This area is updated every time 'Data exchange request' (Y1) is turned on. ( Page 148 Data exchange
completed (X1), Data exchange request (Y1))
• The receive messages stored in this area are initialized when the RJ71CN91 transitions to the online mode.
• Change these settings during offline mode. When the RJ71CN91 transitions to the online mode, the
settings are enabled.
• The data byte sections are not used for parameters, and thus not included in the setting saving targets.
Address Description
Un\G10000 CAN-ID 1 LW
Un\G10001 CAN-ID 1 HW
Un\G10002 RTR/new/DLC
Un\G10003 Data bytes
Un\G10004
Un\G10005
Un\G10006
 
Un\G10287 CAN-ID 42 LW
Un\G10288 CAN-ID 42 HW
Un\G10289 RTR/new/DLC
Un\G10290 Data bytes
Un\G10291
Un\G10292
Un\G10293
*1 Initial value when the CPU module is powered off and on or reset
*2 DLC is an abbreviation of Data Length Count.
*3 Receive messages are read-only. Transmit messages can be read and written.
*4 An area to be saved into the flash ROM by buffer memory settings save operation (: Can be saved, : Cannot be saved)
For how to store the settings, refer to Save/restore configuration (Un\G22). ( Page 158 Save/restore configuration (Un\G22))
The settings can be saved only when Send message is set as the setting in 'Pre-defined Layer 2 message configuration' (Un\G6000 to
Un\G6167) (when parameter A = FFFFH, and parameter B = 7FFFH, 6FFFH, or 5FFFH).
APPX
184
Appendix 2 Buffer Memory
11-bit/29-bit CAN-ID (low word)
11-bit/29-bit CAN-ID (high word)
*2
Lower byte
Upper byte
*3
Lower byte
Upper byte
Lower byte
Upper byte
Lower byte
Upper byte
Lower byte
Upper byte

11-bit/29-bit CAN-ID (low word)
11-bit/29-bit CAN-ID (high word)
*2
Lower byte
Upper byte
*3
Lower byte
Upper byte
Lower byte
Upper byte
Lower byte
Upper byte
Lower byte
Upper byte
Layer 2 message 1
Data length count
RTR
Data byte 1
Data byte 2
Data byte 3
Data byte 4
Data byte 5
Data byte 6
Data byte 7
Data byte 8

Layer 2 message 42
Data length count
RTR
Data byte 1
Data byte 2
Data byte 3
Data byte 4
Data byte 5
Data byte 6
Data byte 7
Data byte 8
Initial Configuration
*1 *4
value save target
FFFFH 
FFFFH 

0000H

0000H

0000H

0000H

0000H
 

FFFFH

FFFFH

0000H

0000H
0000H 
0000H 
0000H 