1. SLC Aware IOC BSAC* Facility Design Review July 14, 2005
*Beam Synchronous
Acquisition & Control
Last updated July 20, 2005

2. Block Diagram

4. BSAC Facility Initialization
Init BSAC EPICS Facility States
Init BSAC EPICS Facility Constants
Init SLC Thread Data Collection Structure

7. bsacAsync Thread

8. Init SLC Thread Data Collection Structure

9. SCP Request Message (bsacHdlr)

10. Measdef Setup Dbput to EPICS Facility MDEF Records
Setup Data Reply Collection Structure
Dbput to EPICS Facility “GO$MD” record SCAN=IO_INTR, for every device, every unit participating in this measdef
Store MDEF timeout value for bsacAsync

13. Large Data Reply Message Buffer(s) (bsacHdlr)

14. Set Scan = IO_Intr for each unit participating in mdef

15. EPICS Pulse ID Processing Flow (120 Hz)

16. EPICS Processing
Flow
(120 Hz)

17. BPMS Processing Flow
(Unit 1,
MDEF 1)

23. SCP Data Reply Message(s) (bsacHdlr)