Communication; Can/Canopen Interface; Canopen Network Structure And Management - Deif IMD 100 Series Integration Manual

IMD 100 Integration manual 4189360015 Rev. G

7. Communication

There are two ways to communicate with the IMD:
•
CAN/CANopen
•
Serial interface over USB (Service)
The CAN/CANopen communication is used for communication with the Pitch Motion Controller (PMC)
or the main controller if the pitch motion controller is implemented in the main controller application.
The serial interface is used for communicating with a PC running the IMD Manager.
Info
When using the IMD Manager while the IMD is also connected to CAN/CANopen interface,
the CAN/CANopen PDO (Process Data Object) will overwrite data sent from the IMD
Manager through the service port on PDO updates.

7.1 CAN/CANopen interface

The proprietary CAN interface requires that each unit in the same network has its own addresses, one
for receiving and one for sending. These two addresses are pre-configured from the factory.
The IMD has also a HW switch on the front for offset (node ID) of the addresses
so it is not necessary to SW configure the IDs for each IMD. The switch can be
set during installation of the IMD.

7.1.1 CANopen network structure and management

The implementation of the CAN network structure can vary. The following figure illustrates the basic
CAN network implementation.
CAN/CANopen
Slave
IMD blade 1
Figure 36 basic CAN network implementation
www.deif.com/wind-power
Turbine controller
Master
CAN/CANopen
Slave
Pitch motion controller
Master
CAN/CANopen
Slave
IMD blade 2
Optional
CAN/CANopen
Slave
IMD blade 3
Communication
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