Bfm #1900 To #1927] Plc Run>Stop Messages - Mitsubishi Electric MELSEC-F FX3U-J1939 User Manual

FX -J1939 User's Manual
3U
8. [BFM #1900 to #1927] PLC RUN>STOP Messages
FX -J1939 can transmit the message according to its state, if the PLC is in one of the following two states.
3U
Up to four transmit messages can each be registered.
• If PLC state changes from RUN to STOP, the message registered into RUN>STOP messages 1 to 4 are
transmitted.
• If FROM/TO Watchdog in FX
to 4 are transmitted.
Warning
Depending on PLC type and baud rate and bus load, FX
such a case, additional H/W and/or S/W should be considered for safe system behavior.
If possible, use only one "RUN>STOP message" which will increase the possibility that the information is
transmitted in the event "RUN>STOP" occurs.
If more than one message is defined, messages are transmitted in order of priority "message 1" to "message 4."
Note
• In J1939 mode, the CAN-ID of PLC RUN>STOP messages are adjusted to J1939 Specification:
- The lowest byte of the CAN-ID will always equal the FX
- If the PGN is in PDU1 format range (PF = HEF or less), the destination address is adjusted if the target
node changes its node address during dynamic address allocation. In this case, the node address is
displayed in BFM #1901/#1900, #1922/#1921 ... as HFE until a valid address claim matching the
Remote ECU List entry is received.
BFM No.
BFM #1900 CAN-ID 1 LW
BFM #1901 CAN-ID 1 HW
BFM #1902
BFM #1903
BFM #1904
BFM #1905
BFM #1906
BFM #1921 CAN-ID 4 LW
BFM #1922 CAN-ID 4 HW
BFM #1923
BFM #1924
BFM #1925
BFM #1926
BFM #1927
BFM Function
11/29 bit CAN-ID n
DLC
Data bytes
*1. RTR is prohibited for these messages.
70
-J1939 has timed-out, the message registered in RUN>STOP messages 1
3U
For the required node address and ECU name definition, refer to Section 5.22
Function
High Byte
11/29 bit CAN-Identifier low word
29 bit CAN-Identifier high word
DLC
2nd data byte
4th data byte
Data bytes
6th data byte
8th data byte
11/29 bit CAN-Identifier low word
29 bit CAN-Identifier high word
DLC
2nd data byte
4th data byte
Data bytes
6th data byte
8th data byte
CAN-ID is used to transmit this message into the network.
Sets HFFFF to the CAN-ID n LW and CAN-ID n HW when not using the message.
High byte H00 = send data frame
Low byte = number of data bytes to transmit (K0 to K8)
Data bytes 1 to 8. Number of attached data bytes is defined by DLC.
8 [BFM #1900 to #1927] PLC RUN>STOP Messages
-J1939 may be unable to send the message. In
3U
-J1939 current node address (BFM #28)
3U
Description
Low Byte
Data length count
1st data byte
3rd data byte
5th data byte
7th data byte
Data length count
1st data byte
3rd data byte
5th data byte
7th data byte
Description
*1
Message No. Default Value
HFFFF
HFFFF
H0
RUN>STOP
H0
message 1
H0
H0
H0
HFFFF
HFFFF
H0
RUN>STOP
H0
message 4
H0
H0
H0