Alstom SHPM 101 - Main Loop Program Flowchart

SERVICE MANUAL R5888C
QUADRAMHO Chapter 2
Appendix A
Page 26 of 71
Figure 25: Main loop program flowchart
Enter
Call INIT
Call load
Call POTIM
Call VTS
Call load 1
Call FLOC
Call SOTF
Call basic
Commissioning
test options
Call OPT
PUR
(permissive underreach)
POR
(permissive underreach)
Block
(blocking scheme)
Z1E
(zone 1 extension)
Call MFAST
Call PSMIS
Call EXOP
Call ENF
Call output
Main loop
Initialise processor
Read input ports
Start pole dead timer
Establish fault locators
Switch on to fault
Run basic scheme
Scheme option select
Memory fast restart
Miscellaneous functions
Extra minor options
Enable band pass filters
Output results