Hand-held CANopen diagnostic tool The CANopen-Diag hand-held diagnostic tool by Embedded Systems Academy is based on the PCAN-Diag hardware by Peak-System Technik. It complies with the CiA 301 (version 4.2) application layer specification. In addition, it supports the CiA 305 Layer Setting Service (LSS) specification (version 2.2). The add-on software module for the CiA 447 car add-on devices application profile complies with the version 2.0.synchronous and asynchronous motors.