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User Manual
J1939 / Modbus Master
Document code: MN67431_ENG Revision 1.101 Page 19 of 32
TRANSMIT J1939:
By pressing the “
Transmit J1939
” button from the main window of SW67431 the window “Transmit J1939 Frames” appears (Fig. 6):
The means of the fields of the table are:
In the field “
Priority
” insert the priority of the frame, in J1939 protocol is a number among 0,1,2,3,4,5,6,7. The number 0 is the
highest priority and 7 is the lowest;
In the field “
Data Page
” insert the data page, in the J1939 protocol it is 0 or 1;
In the field “
PGN
” insert the PGN of the data you would to transmit to J1939 (in the J1939 protocol the PGN is an identifier);
In the field “
Source Address
” insert the ID of device which sending the frame to;
In the field “
Num Byte
” insert the dimension of the PGN (number of bytes);
If the option “
Request
” is checked, the PGN is transmitted when a J1939 request is sent (On Request);
If the option “
Data Change
” is checked, the PGN is transmitted when the data from Modbus changes;
If the option “
On Timer
” is checked, the PGN is transmitted cyclically;
In the field “
Send Timer
” insert the delay with which the PGN is sent (only if you use the Transmition Type “On Timer”);
In the field “
Mnemonic
” the description for the frame is defined.
Figure 6: “Transmit J1939 Frames” window