ADF Web HD67432 Series, User Manual

Page: 16 / 32

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User Manual J1939 / Modbus Slave
Document code: MN67432_ENG Revision 1.100 Page 16 of 32
SET COMMUNICATION:
This section defines the fundamental communication parameters of two buses, J1939 and Modbus.
By pressing the “
Set Communication ” button from the main window for SW67432 (Fig. 2) the
window “Set Communication Setting” appears (Fig. 3).
The means for the fields for the “J1939” are:
In the fields “ Baud Rate ” the data rate of J1939 bus is defined;
In the field “ Time out Data (s) ” the timeout of the data is defined. If this time is elapsed and
if the “Cancel Data” field is checked in the “Receive J1939” window, the value of the data of
the J1939 frame become “0xFF” on Modbus side;
The field “ Modbus Reg. TimeOut ” a Modbus register is defined. In this register it is possible
to visualize if the data is reliable, if ‘1’ the data is ok, if ‘0’ the data is oldest of the time
inserted in the “TimeOut Data” field;
If the field “ Enable Peer to Peer ” is checked, the Source Address of the PGNs received by
the converter is masked (only if a single J1939 device is connected);
If the field “ Enable Remote Request (RTR) ” is checked, the functions to send a remote
request on J1939 side are enabled. See page 24 for more info;
In the field “ Priority and Destination (RTR) ”, the Modbus register reserved to load the
Priority and the Destination for the RTR request is defined;
In the field “ PGN (RTR) ”, the Modbus registers reserved to load the PGN for the RTR request
is defined;
In the field “ Source Address (RTR) ”, the Modbus register reserved to the Source Address for
the RTR request is defined.
The meaning of the fields of “Modbus Slave” are:
In the field “ Baudrate ” the data rate of the RS485 bus is defined;
In the field “ Parity ” the serial parity is defined;
In the field “ ID Device ” the Modbus ID is defined.