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Detailed Description of the Module
3.6.5
PLC RUN>STOP messages (Un\G8450–Un\G8477)
In order to send messages in case of critical events when changing the PLC state from RUN to STOP the
ME3CAN1-L supports up to 4 messages that can be predefined to be sent.
The RUN>STOP messages 1 to 4 are sent when the PLC state has changed from RUN to STOP.
b
WARNING:
If possible use only one "RUN>STOP message" which will increase the possibility that the infor-
mation is transmitted when the event "RUN>STOP" occurs. If more than one message is defined
the messages are transmitted in the priority "message 1" to "message 4".
Address
(Decimal)
8450
8451
8452
8453
8454
8455
8456
:
8471
8472
8473
8474
8475
8476
8477
Tab. 3-36: Allocation of the buffer memory addresses Un\G8450 to Un\G8477
The "Default" value is the initial value set after the power is turned ON or the PLC CPU is reset.
Reading from and writing to a sequence program are enabled.
The function of the buffer memories addresses listed above is described in the following table.
Buffer memory
function
CAN-ID n
DLC
Data bytes
Tab. 3-37: Function of Un\G8450 to Un\G8477
RTR is prohibited for these messages.
3 – 40
Function
High Byte
CAN-ID 1 LW
11/29 bit CAN-Identifier (low word)
CAN-ID 1 HW
11/29 bit CAN-Identifier (high word)
DLC
Data length count
Data byte 2
Data byte 4
Data bytes
Data byte 6
Data byte 8
:
CAN-ID 4 LW
11/29bit CAN-Identifier (low word)
CAN-ID 4 HW
11/29 bit CAN-Identifier (high word)
DLC
Data length count
Data byte 2
Data byte 4
Data bytes
Data byte 6
Data byte 8
Description
CAN-ID used to transmit this message into the network.
Set low and high word to FFFF
High byte: 00
= Send data frame
H
Low byte: Number of data bytes to transmit (0 to 8)
Data bytes 1 to 8.
The number of attached data bytes is defined by DLC.
Buffer Memory Details: Layer 2 Message Mode
Description
Low Byte
Data byte 1
Data byte 3
Data byte 5
Data byte 7
:
Data byte 1
Data byte 3
Data byte 5
Data byte 7
to disable the message.
H
Message slot
Default
FFFF
H
FFFF
H
0
H
RUN>STOP
0
H
message 1
0
H
0
H
0
H
:
:
FFFF
H
FFFF
H
0
H
RUN>STOP
0
H
message 4
0
H
0
H
0
H
MITSUBISHI ELECTRIC
Remark
R/W
:
R/W
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