CANOM_SDO_READΒΆ
The Function Block CANOM_SDO_READ can be used to read individual service data objects (SDOs) from a slave.
Note
In the library CANopen_AC500_V25.lib the Function Block CANOM_SDO_READ was extended with the input OBJ_LEN.
| Parameter | Value |
|---|---|
| Library_File_Name | CANopen_AC500_V25.lib |
| Firmware | V2.5.3 |
| Type | Type_Function_Block_History |
Using the Function Block CANOM_SDO_READ it is possible to read service data objects (SDOs) from a slave.
Every time a FALSE->TRUE edge is applied to input EN, CANOM_SDO_READ reads the data at its inputs and sends a corresponding request message to the Communication Module. Further FALSE->TRUE edges at input EN are ignored until the processing of the active requests is completed. The completion of the request processing is indicated by DONE = TRUE.
The CANOPEN object model is defined in the communication profile and device profile specifications (see also System Technology of the CANOPEN Communication Modules). Furthermore, the device-specific objects are explained in the corresponding device description of the slave.