user_cvt_data_to_device| CIMPLICITY 11.1 Documentation

Converts data from the format for the given point type to the general toolkit format.

The Device Communications Toolkit calls user_write_data() to write to the same device domain from various points of different data types. The user_write_data() subroutine assumes data is in little endian format (least significant byte first) and is otherwise consistent with the data type of the device domain.

For example, an SINT (8 bit integer) point can be configured in a bit domain and used to set eight (8) bits at a time, or the individual bits can be set with BOOL setpoints.

The Device Communications Toolkit calls user_cvt_data_to_device() for individual points to perform data conversion specific to the point data type.

For example, if the point data type is not SINT (8 bit integer), it may be necessary to swap bytes or swap words in the point data to make it little endian for user_write_data().

You can find the template for this subroutine in:

usrtm_cvtto.c

Syntax

void user_cvt_data_to_device ( DEVICE_DATA *device_struct,
??????????????????????????????????????????????????????????????ADDR_DATA *address_struct,
??????????????????????????????????????????????????????????????int element_cnt,
??????????????????????????????????????????????????????????????int element_size,
??????????????????????????????????????????????????????????????int pnt_data_type,
??????????????????????????????????????????????????????????????char *data_buffer)