CANopen I/O profile 3.0 for free download
Nürnberg, (PresseBox) - The nonprofit CAN in Automation (CiA) organization has released the CiA 401 CANopen device profile for generic I/O modules version 3.0 as draft standard (DS). This device profile allows connection of digital and analog I/O modules to a CANopen network. The digital I/O values may be grouped to 8-bit, 16-bit or 32-bit values, which allows addressing of up to 8128 I/Os. Analog measurements feature signed integer and float data types with resolution of up to 32 bit are possible. Special I/O devices (e.g. joystick) are defined in the appendices of the specification. The version 3.0 allows the indication of manufacturer-specific PDO mapping in the device type object. The new version features dead-band objects and additional PDO mappings for joystick devices. Additionally, a warning is send, if the "global analog input interrupt" is disabled. The first CiA 401 specification was released in December 1996 and is very widely used in automation and many other industries including medical devices, off-highway vehicles, etc. CiA has already developed the CiA 401 conformance test plan (CiA 312-2). A related test tool is under development.