CANopen vendor-ID
The CANopen vendor-ID is used to identify the manufacturer of a CANopen product. It is required since CANopen version 4 and by EN 50325-4. All vendor-IDs are assigned by CiA.
The CANopen vendor-ID is part of the identity object of a CANopen device. The identity object serves as a worldwide unique device address. Several services (e.g. LSS and node claiming) utilize this object to correctly identify CANopen devices, to allow plug and play, and to check the integrity of the whole system.
The CANopen vendor-ID is used to identify the company, and to identify the department within larger organizations.

The CANopen vendor-ID is also used by other communication technologies. As some companies develop device exclusively for those, the CANopen vendor-ID range is used as shown.
CANopen vendor-ID range | Responsible organization |
---|---|
0000 0000h to AFFE FFFFh |
CAN in Automation (CiA) |
AFFF 0000h to FFFE FFFFh |
reserved |
FFFF 0000h to FFFF 0FFFh |
Ethernet Powerlink Standardization Group (EPSG) |
FFFF 1000h to FFFF FFFFh |
reserved |
Downloads
- CANopen vendor-ID registration form
- CANopen vendor-ID list in JSON format
- CANopen vendor-ID list in XML format
Proof of conformity
Conformance testing is like spell checking. CiA provides the CANopen conformance test tool, developed by a consortium of CiA members. Members can get it free-of-charge. The CiA staff uses it for conformance testing of CANopen products. Therefore, test customers get the tool free-of-charge for preparation. On CiA's website you can find a list of successfully tested CANopen devices.
In order to test interoperability, CiA offers an optional in-system test. It checks if the tested device communicates failure-free with other CANopen devices. At the moment, we use a CANopen master by Schneider Electric.
For more details please contact us (service(at)can-cia.org)