Rockwell Automation 6001-F2E AB STANDARD DRIVER SFTW - Manual (Page 17)

Writing Your Own Application Program
Chapter 4
4-4
be interpretted by the SLC-500 as a logical offset (in words) into Data
File 9. See the SLC-500 Advanced Programming Software Manual,
chapter A3, for more information on the SLC-500 memory organization.
If you do not wish to use the commands supported by the Application
Library, use the Send_StdDrv() function to send user-formatted messages.
The Send_StdDrv() function call transmits data over the DH-485 network
to a DH-485 station. Depending on your application, you can use the
Send_StdDrv() function call two ways. You can:
communicate with token-passing DH-485 devices (such as the
SLC-500)
communicate with slave-only DH-485 devices
(See appendix B for more information on message packet formats for the
Send_StdDrv() function call.)
Any transmission that does not complete normally is aborted by a timeout
or local error code indicating the problem. See appendix D for a list of
error codes. Use the following format and parameters:
Format for Send_StdDrv()
The Send_StdDrv() function call is shown below:
status = Send_StdDrv(device,
&io_stat[0],
&cmd_buff[0],
pass_thru,
&reply_buff[0],
timeout,
0,0)
Use the Send_StdDrv() function call to send user-formatted messages.
Using Send_StdDrv()