GENERAL NOTES
GENERAL OPERATION
1.        If going AØ → BØ, EØ → BØ, FØ → BØ then cancel BØ late start.
2.        If going BØ → DØ, EØ → DØ and FØ → DØ cancel DØ late start.
3.        If going AØ → EØ, BØ → EØ, DØ → EØ and FØ → EØ then cancel EØ late start.
4.        Use AØ yellow for DØ yellow, if going DØ → EØ or DØ → FØ.
5.        Use CØ yellow for BØ yellow, if going BØ → AØ, BØ → DØ, BØ → FØ.
6.        If going CØ → BØ close down SG3 at the start of CØ yellow. Re-introduce SG3 at the end of BØ late start.
SIGNAL GROUP OPERATION
Signal Group 1
If going from AØ → DØ, SG1 closes down with SG2 and reintroduces in DØ at the end of the late start period.
Signal Group 3
1.        If going CØ → BØ close down SG3 at the start of CØ yellow. Re-introduce SG3 at the end of BØ late start.
2.        If going CØ → EØ close down SG3 at the start of CØ yellow. Re-introduce SG3 at the end of EØ late start.
Signal Group 7
Late start SG7 in DØ if going CØ → DØ. 
PEDESTRIAN GROUP OPERATION
Pedestrian 1
1 P1 calls AØ.
2 P1 can introduce at anytime in DØ and at the start of AØ and can overlap DØ→AØ.
Pedestrian 2
1 P2 calls AØ.
2 P2 can introduce at the start of AØ.
3 If going DØ → AØ, P2 introduces in AØ after the expiry of a special timer that uses DØ special all red and starts at the end of SG5 yellow.
Pedestrian 3
1 P3 calls CØ.
2 P3 can introduce at any time in BØ and at start of CØ and can overlap BØ→CØ.
3 Late start P3 in BØ if going CØ → BØ.
Pedestrian 4
1 P4 calls CØ.
2.    If going BØ → CØ  or EØ → CØ, P4 introduces in CØ after the expiry of a special timer that uses BØ special all red and starts at the end of SG6 yellow.
FIRE BRIGADE OPERATION
There is a fire station (CFA) in Pakenham St near the south east corner of the Northern Hwy/Pakenham St intersection.
The activation of push button within the fire station institutes special operations at the Northern Hwy / Pakenham St intersection to assist CFA vehicle movements out of the fire station.
Three push buttons are located in the premises of the CFA. The three push buttons are connected to detectors 11, 12 and 13.
Detector 11 is to be activated when the CFA vehicle is to turn left out of the premises and into Pakhenham St.
Detector 12 is to be activated when the CFA vehicle is to turn right out of the premises and into Pakhenham St.
Detector 13 is to be activated in order to cancel the calls made by detectors 11 and 12.
There is a “Signal Received” indicator lamp within the fire station. This lamp is driven by P8 WAIT STATE OUTPUT. 
CALL FUNCTION via DETECTOR 11
When detector 11 is activated start DELAY TIMER 1 (Special Purpose timesetting No 9). When the Delay Timer expires the call for the FIRE BRIGADE LEFT TURN PHASE (ie EØ) is established and will force the controller to operate as described below:
·        If running AØ, BØ, CØ, DØ or FØ then immediately terminate the running phase (without violating minimum green and pedestrian times) and proceed to EØ.
If in phase intergreen when the call for EØ is received then select Special Purpose Timesetting No12 as the walk time.
EØ is automatically extended to a period equal to EØ minimum green plus EØ maximum extension green, unless the extension intervals is terminated by the CANCEL FUNCTION ( see notes below).
After EØ has been completed the controller goes to the phase which was the next demanded phase before EØ was demanded. 
The controller resumes normal operation at the start of Yellow of EØ.
Setting of MSS 1 Flag
MSS 1 flag is set from the point at which EØ is demanded until the start of the yellow of EØ.
In linked mode the controller must operate in isolated operation from the point at which EØ is demanded until the start of Yellow of EØ. When on line to the regional computer this is achieved via a MSS 1 flag using a Variation Parameter Table (VR 30).
CALL FUNCTION via DETECTOR 12
When detector 12 is activated start DELAY TIMER 2 (Special Purpose Time setting No.10). When the Delay Timer expires the call for the FIRE BRIGADE RIGHT TURN PHASE (i.e. FØ) is established and will force the controller to operate as described below:
·        If running AØ, BØ, CØ or DØ, then immediately terminate the running phase (without violating minimum green and pedestrian times) and proceed to FØ.
·        If running EØ, then allow EØ to operate to its maximum extension time and then proceed to FØ.
If detector 12 is activated while DELAY TIMER 1 (refer to notes regarding “CALL FUNCTION” via DETECTOR 11” above) is still running then do not start DELAY TIMER 2 (i.e. do not call FØ via DELAY TIMER 2 (i.e. via detector 12).
If in phase intergreen when the call for FØ is received, then do not introduce pedestrians in the next phase.  If in pedestrian walk when call is received then select the Special Purpose Timesetting No. 12 as the walk time.
FØ is automatically extended to a period equal to FØ minimum green plus FØ maximum extension green, unless the extension interval is terminated by a call from detector 11( refer to notes regarding “CALL FUNCTION via DETECTOR 11” above) or by the CANCEL FUNCTION (see notes below).
After FØ has been completed the controller goes to the phase which was the next demanded phase before FØ was demanded. 
The controller resumes normal operation at the start of Yellow of FØ.
Setting of MSS 1 Flag
MSS 1 flag is set from the point at which FØ is demanded until the start of the yellow of FØ.
In linked mode the controller must operate in isolated operation from the point at which FØ is demanded until the start of Yellow of FØ. When on line to the regional computer this is achieved via a MSS 1 flag using a Variation Parameter Table (VR 30).
CANCEL FUNCTION via DETECTOR 13
Activation of detector 13 starts DELAY TIMER 3 ( Special Purpose Timesetting No 11), expiry of which terminates either EØ extension or FØ extension.
If EØ extension has not yet commenced, it will be cancelled, thus EØ terminates at the end of EØ minimum green.
If FØ extension has not yet commenced, it will be cancelled, thus FØ terminates at the end of FØ minimum green.
“SIGNAL RECEIVED” INDICATOR LAMP - P8 WAIT STATE OUTPUT
Call Function via Detector 11
P8 Wait State Output is activated from the point Detector 11 is activated until the end of EØ minimum green.
Call Function via Detector 12
P8 Wait State Output is activated from the point Detector 12 is activated until the end of FØ minimum green.
ALARM STATUS
Detector 11
Do not alarm Detector 11 if in the off state.
If detector 11 is on continuously do not call EØ (apart from when it is first activated) until Detector 11 again changes state.
If the controller is on line to SCATS and detector 11 is on continuously for greater than timesetting in Special Purpose Timesetting No 13, then set the MSS 2 flag. MSS 2 flag can be used to send a warning message.
Suggested Message: “DNC 6320 CFA Push-button Faulty”
Detector Alarm Generation:
·        When the controller is on line to SCATS and detector 11 is continuously on for the periods as specified by the SCATS TDA message, then a Detector Alarm(DA) will be generated on Detector 11.
·        Do not alarm Detector 11 if in the off state.
·        These 2 conditions mean that a DA will be generated “ONLY IF DET SHORT CIRCUIT”
Detector 12
Do not alarm Detector 12 if in the off state.
If detector 12 on is continuously do not call FØ (apart from when it is first activated) until Detector 12 again changes state.
If the controller is on line to SCATS and detector 12 is on continuously for greater than timesetting in Special Purpose Timesetting No 14, then set the MSS 3 flag. MSS 3 flag can be used to send a warning message.
Suggested Message: “DNC 6320 CFA Push-button Faulty”
Detector Alarm Generation:
·        When the controller is on line to SCATS and detector 12 is continuously on for the periods as specified by the SCATS TDA message, then a Detector Alarm (DA) will be generated on Detector 12.
·        Do not alarm Detector 12 if in the off state.
·        These 2 conditions mean that a DA will be generated “ONLY IF DET SHORT CIRCUIT”
Detector 13
Do not alarm Detector 13 if in the off state.
If detector 13 is on when either Detector 11 and/or 12 is activated, then ignore detector 13 (i.e. detector 13 is prevented from cancelling the extension of EØ or FØ). 
Detector Alarm Generation:
·        When the controller is on line to SCATS and detector 13 is continuously on for the periods as specified by the SCATS TDA message, then a Detector Alarm (DA) will be generated on Detector 13.
·        Do not alarm Detector 13 if in the off state.
·        These 2 conditions mean that a DA will be generated “ONLY IF DET SHORT CIRCUIT”
·        Generation of a DA alarm renders detector 13 inoperative (i.e. Phase E and F will run to maximum).