The shared variables are created on bootup by the startup file /opt/nrg/bin/omstart on the AP/AW. After these are created then the multisvc server is started.
The shared variables have the form-
UNIT FD PULVERISER BURNER VALUE
eg
3FDA10 ie Unit 3, A Pulveriser, Burner 1, 6" Tube DC
3FDA11 ie Unit 3, A Pulveriser, Burner 1, 6" Tube AC
3FDA12 ie Unit 3, A Pulveriser, Burner 1, 6" Tube AC-SCALED
3FDA13 ie Unit 3, A Pulveriser, Burner 1, Porthole DC
3FDA14 ie Unit 3, A Pulveriser, Burner 1, Porthole AC
3FDA15 ie Unit 3, A Pulveriser, Burner 1, Porthole AC-SCALED
3FDA16 ie Unit 3, A Pulveriser, Burner 1, Status
The status bits (word 6) are of the form-
Bit 0 - 6" Tube Flame (True = on)
Bit 1 - 6" Tube Dull (False = Dull)
Bit 2 - Port Tube Flame (True = on)
Bit 3 - Port Tube Dull (False = Dull)
Bit 4 - Port Gain (True = High Gain)
Bit 5 - Feeder Running (False = running)
Bit 6 - Oil Firing (False = firing)
Bit 7 - Shutter Check (False = in progress)
Bit 8 - Gateway Fail (False = OK)
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