Mitsubishi Electric MELSEC-F FX3U-J1939 User Manual page 62

FX -J1939 User's Manual
3U
- Overview Tx Message valid and invalid settings
Format
PDU1
PDU2
*1. Address HFE is an invalid address for all user messages.
- Additional notes for PDU1 format
If the same PDU1 PGN is configured with multiple destination addresses, the following cases need to be
taken into account:
a) Tx user messages can be either addressed to several explicit destination addresses OR to broadcast
the address HFF.
b) In general, a PDU1 PGN in a RX user message should use the FX
the destination.
e.g. BFM #27 = H80, PGN = HB100 >> filter PGN = HB180.
c) The Destination address of a RX user message can be set to a destination address other than BFM
#27. (The FX
"Overview Rx Message valid and invalid settings" this setting is valid only for messages with max. 8
data bytes.
RX user messages can be addressed to both explicit destination addresses AND to broadcast
address HFF at the same time, as long as the DLC is 8 byte or less.
Direction
TX
RX
2. Priority
Set the priority of the message.
Setting range: K0 to K7 (where K0 is the highest priority)
52
Destination
BFM #27
HFF
0 to 250
Any other address
*1
(not BFM #27, not HFF)
0 to 250
-
-J1939 is listening to a message targeting a different node.) As mentioned in the table
3U
Configured User Messages
(all messages same DLC, e.g. all DLC = 8byte)
HB101, HB102, HB103
HB101, HB102, HB103, HB1FF
HB1FF (no other HB1xx message configured)
HB101, HB102, HB103, HB1FF
For default priority of each PGN, refer to the related SAE J1939 Specification
DLC Mode
Setting Invalid
Setting Valid (Transmit Broadcast messages)
J1939
communication
Setting Valid
Setting Valid
Requests from node 1 to 3 will be answered. Requests
valid from any other node will result in a NAK message if PtP,
or a timeout if request was sent broadcast.
The broadcast message (HB1FF) will overwrite the data
invalid
written to node 1-3 (HB101 to HB103).
Only broadcast requests are answered, PtP requests
valid
will be answered by NAK.
Messages transporting the specified PGNs are stored,
any other (HB104 to HB1FD) are ignored.
valid The first 3 user messages will store the PGNs HB101 to
HB103 but no broadcast messages, while the last slot
stores only broadcast messages.
6 J1939 Communication Mode
6.2 [BFM #500 to #973] Configuration Area
Description
-J1939 address (BFM #27) as
3U
Description