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User Manual
J1939 / Modbus Master
Document code: MN67431_ENG Revision 1.101 Page 21 of 32
CONFIGURE REGISTERS/STATUS:
By pressing the “
Map
” button in “Modbus Write” or “Modbus Read” windows (Fig. 5 and 7) the window “Configure of Registers”appears (Fig.
8).
With this window it is possible to insert for each register or status, the byte to put in the high and low part (for the register) or the byte and
the bit (for the status).
In the right side of the window there is the possibility to select the byte to insert in the register/status selecting the PGN and the byte of the
J1939 frame.
Selecting the “None” value that part of the Modbus register/status is leave to zero.
For the Status, the Bit 1 is Less Significant Bit (LSB) and the Bit 8 is Most Significant Bit (MSB) of the selected byte.
Figure 8: “Configure of Registers” window
