Mitsubishi Electric CANopen ME3CAN1-L, User Manual

Page: 63 / 188

Buffer Memory Details: Layer 2 Message Mode Detailed Description of the Module
MELSEC-L Series – CANopen Module ME3CAN1-L 3 – 41
3.6.6 Receive/Transmit Process Data (Un\G10000–Un\G10293)
In Layer 2 message mode the ME3CAN1-L can send/receive up to 42 messages pre-defined by the
user.
Transmission of Layer 2 messages is also possible via the CIF (command interface): Sending Layer 2
Message (Refer to section 3.6.7).
The "Default" value is the initial value set after the power is turned ON or the PLC CPU is reset.
Write access to these buffer memory addresses is possible in "Layer 2 configuration mode" only. Refer to bit 4 in Un\G25
(section 3.5.5). The contents of these buffer memory addresses will be stored into the Flash ROM when the save command
is executed (Refer to section 3.5.3).
This information is read only for receive messages and read/write for transmit messages.
NOTE The buffer memory addresses are refreshed every time the signal Yn1 is turned ON (refer to sec-
tion 3.3.2).
Address
(Decimal)
Function
Description
Message slot
Default
���
Remark
High Byte Low Byte
10000 CAN-ID 1 LW 11/29 bit CAN-Identifier (low word)
Layer 2
message 1
FFFF
H
R/W
��� 10001 CAN-ID 1 HW 11/29 bit CAN-Identifier (high word) FFFF
H
10002 RTR / new / DLC
Remote Transmission
Request
Data length count 0
H
10003
Data bytes
Data byte 2 Data byte 1 0
H
R/W
���
10004 Data byte 4 Data byte 3 0
H
10005 Data byte 6 Data byte 5 0
H
10006 Data byte 8 Data byte 7 0
H
: : : : : :
10287 CAN-ID 42 LW 11/29 bit CAN-Identifier (low word)
Layer 2
message 42
FFFF
H
R/W
��� 10288 CAN-ID 42 HW 11/29 bit CAN-Identifier (high word) FFFF
H
101289 RTR / new / DLC
Remote Transmission
Request
Data length count 0
H
10290
Data bytes
Data byte 2 Data byte 1 0
H
R/W
���
10291 Data byte 4 Data byte 3 0
H
10292 Data byte 6 Data byte 5 0
H
10293 Data byte 8 Data byte 7 0
H
Tab. 3-38: Allocation of the buffer memory addresses Un\G10000 to Un\G10293