Industrial
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User Manual
CAN from/to Modbus Slave
Document code: MN67412_ENG Revision 1.000 Page 12 of 25
DEFINE COB:
By pressing the “
Define COB
” button from the main window for SW67412 (Fig. 2)
the window “Receive CAN Frame Info” appears (Fig. 5):
In the field “
COB-ID Frame
” there are the COB-ID that you insert in the list
Receive COB;
In the field “
MODBUS
” there are the modbus words defined for that COB-ID
Frame;
In the field “
Index MODBUS
” there is the address that contain the Modbus
word;
In the field “
Selecet Frame Byte
” you select the position of the byte;
For example:
Click on the “COB-ID”, insert the valid address in the field “Index MODBUS”, select
the byte position(B1 in “High MODBUS Byte” and B2 in “Low MODBUS Byte”), click
the “New” button, then in the field “MODBUS” the names of modbus words appear
(The first word is name IND MB 0, the second IND MB 1, the third Ind MB 2, the
fourth Ind MB 3).
Figure 6: “Receive CAN Frame Info” window
Figure 5: “Receive CAN Frame Info” window
