Rockwell Automation 6008-SV2R VMEbus remote I/O Scanner - Manual (Page 112)

Chapter
Operating in SVĆSuperset Mode
6
6Ć31
Your code for the BT READ command should include these tasks:
1. get the semaphore
2. set up the control status area
3. send the command interrupt
4. wait for the result
(either poll for confirmation status or wait for an interrupt)
5. clear the semaphore
coding sequence