Mobility, Intelligent Traffic Systems
Sopers Lane, Poole, Dorset, BH17 7ER
Copyright © Siemens plc 2020. All Rights Reserved. Mobility is a division of Siemens Plc
• Controller - used by the controller application
These clocks can run independently or be joined together to match the way in which
the ST950 is being used. This relationship between the clocks is called the Time
Mode. There are three options for Time Mode, used as follows:
• System Time - controller clock is synchronised to system clock. Use this
mode where NTP or GPS is providing the source of time to the whole ST950
system and synchronisation to other controllers (e.g. mains synchronisation
for CLF) is not required.
• Controller Time - system clock is synchronised to the controller clock. Use this
mode where there is no NTP or GPS time source and the system is to
maintain its own time (usually mains synchronised).
• Dual Time - system and controller clocks keep independent time. Use this
mode where the system clock must be synchronised to NTP or GPS but the
controller clock needs to be synchronised to neighbouring controllers e.g. to
support mains synchronised CLF.
If the controller is installed outside of the UK, ensure that the time-zone
and daylight saving settings have been configured correctly before
attempting to set the time.
The time mode, date and time can be set from the web page:
Status and Configuration → Controller → Clocks
The user should configure the controller clocks as required - refer to the Time
section in the ST950 Facilities Handbook 667/HB/46000/001 and then set the time
and date as follows:
• Enter the current date in the 'Set Date' box using one of the accepted formats
• Enter the time to be set in the 'Set System Time' and / or 'Set Controller Time'
(depending on the clock system required) in one of the accepted formats
• Press the 'Save' button at the precise time set.
It is not necessary to set the System time when the profile is set to
Stratos.
If NTP is used, the time may not be the actual time but that used by the
system (instation time)
If CLF plans are to be used it is important that the clock be set
accurately to ensure that the plans operate as expected.
To Next Page
Loading...
