Industrial
Electronic Devices
ADFweb.com S.r.l.
User Manual
CAN / Modbus TCP Slave
Document code: MN67515_ENG Revision 2.100 Page 22 of 30
DEFINE COB
By pressing the “
Define COB
” button near “Transmit COB” from the main window for SW67515 (Fig. 2) the window “Define Modbus
Registers for Transmit CAN Frames” appears (Fig. 7):
In the field “
List of Transmit CAN Frames
” there
is the list of CAN frames that you inserted in
“Transmit COB” Section.
In the field “
List of Modbus Registers
” there are
the Modbus words.
In the field “
Create/Modify a Modbus Register
”
you can define the index of the Modbus register and
the bytes of the CAN frame where you write it.
With the field “
Send CAN frame on Modbus
Write
” it is possible to decide when to send the
CAN frame. If a Modbus word has written “False ”in
this field, the CAN frame is not sent immediately
but it is sent when another word that have this field
“True” is written.
For example:
Click on the frame, insert the valid address in the field “Index
of Modbus Register”, select the byte position (Byte 1 in High
Modbus byte and Byte 2 in Low Modbus byte), click the
“Create” button, in the field “List of Modbus Registers”
appears the new Modbus register created.
Figure 7: “Define COB” window