Communication Over Canopen - Siemens SINAMICS G120 CU230P-2 HVAC Operating Instructions Manual

Configuring the fieldbus

6.3 Communication over CANopen

6.3 Communication over CANopen
Connecting an inverter to a CAN bus
Connect the inverter to the fieldbus via the 9-pin SUB-D pin connector.
The connections of this pin connector are short-circuit proof and isolated. If the inverter
forms the first or last slave in the CANopen network, then you must switch-in the bus
terminating resistor.
For additional information on the SUB-D pin connector and on the bus terminating resistor,
please refer to Section Interfaces, connectors, switches, control terminals, LEDs on the CU
(Page 46).
Integrating the converter into CANopen
We recommend the following procedure to integrate the converter into CANopen:
1. Setting the node ID and baud rate
2. Monitoring the communication and response of the inverter (Page 155) set
3. Integrating the converter into CAN using the Predefined Connection Set
4. if required, make additional specific changes using the free PDO mapping.
5. Adapting the BiCo interconnection
Note
In the configuration example (Page 179) you can find a detailed description of how you
integrate the converter into a CANopen system.
More information about how to configure the communication is provided in Sections Other
CANopen functions (Page 167) and Object directories (Page 170).
General information on CAN
You can find general information on CAN in the CAN Internet pages (http://www.can-cia.org);
you can obtain an explanation of CAN terminology in the CANdictionary under CAN
downloads (http://www.can-cia.org/index.php?id=6).
The EDS file is the description file of the SINAMICS G120 converter for CANopen networks.
If you load the EDS file into your CAN controller, you can use the objects of the DSP 402
device profile.
1. You can find the EDS file of the converter inInternet
In Section Configuration example (Page 179), you can find an example of how you can
integrate the converter into a CAN controller using the EDS.
152
(http://support.automation.siemens.com/WW/view/en/48351511).
Frequency inverters with Control Units CU230P-2 HVAC, CU230P-2 DP, CU230P-2 CAN
Operating Instructions, 01/2011, FW 4.4, A5E02430659B AD