Siemens ST950 Handbook page 101

Special Conditioning is required to map the MOVA force and reply bits to the
UTC bits.
Special Conditioning is required if the mode priorities are different.
UTC may use different control and reply bits.
UTC may want to use demand-dependent force bits (MOVA never does).
The priority between Serial-UTC and Serial-MOVA is handled by the Gemini unit,
but free-standing or Integral UTC with Serial-MOVA requires this to be done by
the controller - inconsistent.
55 IC4 C
ONFIGURATION
An IC4 configuration can be loaded into the controller using either the web interface or
the text based menu system (WIZ). In both cases the controller assesses the difference
between the configuration currently running and that being loaded and where possible
will offer to perform a Quiet Initialisation.
A Quiet Initialisation is the loading of an updated IC4 controller configuration, with the
option of the traffic signals remaining illuminated.
If the changes made to the IC4 controller configuration are fundamental, e.g. the
phases in stage arrangements are changed, then Quiet Initialisation is not possible and
the full reprogramming and initialisation sequence is followed.
56 F
IRMWARE
Most of the firmware within the controller is stored in non-removal devices. This
firmware can be updated by the user. The following firmware can be upgraded in this
way:
CPU card
EFC firmware
Primary firmware
SEC firmware
Fail Flash firmware
GSPI peripheral card
GSPI peripheral firmware
The following firmware is stored in a removable device and if upgrade is required then
the device must be replaced with a part containing the new firmware:
CPU card
PHP firmware
The following firmware is stored in a non-removable device and is not upgradable by
the user:
Security classification
Version
Last Editor
Document Name
Copyright © Siemens plc 2015. All Rights Reserved.
L
OAD AND
U
PDATE
Unrestricted
4
Paul Cox
ST950 General Handbook
Mobility Division, Traffic Solutions
Sopers Lane, Poole, Dorset, BH17 7ER
Q I
UIET NITIALISATION
Page
Status
Date
Document No.
Mobility is a division of Siemens Plc
101 of 107
Issued
16-Jul-2015
667/HB/46000/000