Modified mapping of the SSI interface for usage with standard 9300

Function description
By means of index I4104h the user can determine the process data mapping (PDO mapping) of the input and output bytes, as well as of the control and status bytes of the SSI interface. According to the used device this index is set as follows:

• I4104h = 0: SSI mapping for PLC (default setting)
The PDO mapping is required for data evaluation with PLC devices via the function modules 'L_IOSSIDateToIO' and 'L_IOSSIDataFromIO' of the Lenze function library 'LenzeIOSystemVxxxx.lib'.

• I4104h = 1: SSI mapping 'Standard 1' for standard 9300 drive controller

• I4104h = 2: SSI mapping 'Standard 2' for standard 9300 drive controller

The only difference between 'Standard 1' and 'Standard 2' is the arrangement of the input / output bytes and the control and status bytes.
The documentation of the corresponding instance (ES,EP,…) of the 9300 drive controller, especially regarding the used function block CAN-IN, informs you on which function block outputs you can receive and evaluate most comfortably the data of the SSI interface.
Example: In case of 'Standard 2' the standard 9300 ES servo presents the status bit per bit in the first byte (CAN-IN2.B0…CAN-IN2.B7) with the function block CAN-IN2. The position can be used on the second 4*bytes (CAN-IN2.D2) immediately.

Applications
The extension of the process data mapping by two other 'modes' simplifies the usage and commissioning of the SSI interface in conjunction with standard 9300 drive controllers.

URL for linking this AKB article: https://www.lenze.com/en-de/go/akb/200509015/1/