Det-Tronics S3 Graphics - Manual (Page 15)

1-6 INSTALLATION
Version 6.0
Online Environment
The S 3 software suite consists of a number of separate application programs that work together to collect,
distribute and display data from a variety of sources.
At the center of the suite is an application program called the “Data Collector and Distributor” or “DCD” for
short.
DCD
The DCD is the heart of all online operations. It handles all of the
OIS communication processes including serial communications to
attached systems, TCP/IP communication with attached systems,
communication with OPC clients, and peer-to-peer communications with
other S 3 application programs both local and remote.
The DCD can control up to ten communication ports, either individual
serial ports or TCP/IP connections.
It collects data from these ports to update the tag database in accordance
with the configurations of the individual attached systems.
Other S 3 application programs query the DCD to perform their individual
functions such as, updating the active alarm list, generating the alarm
history and daily log, and servicing remote access requests.
Installation Options
There are two installation options available depending on how the workstation is to be used. They are; Operations
and Development.
Operations Installation Selection
This installation is designed for full time Operator Interface Station (OIS)
operations where the system will be “online” around the clock and will be
used by operations personnel as a window into the safety system.
If the “Operations” selection is used for installation, the system will be
configured as a secure stand-alone OIS with tight security restrictions
installed at the lowest levels of the operating system.
The user must be logged into Windows as the “Administrator” in order to
install this option.
When the “Operations” installation is used S 3 takes complete control of
the workstation and when “Online” access to the operating system will
not be allowed. In addition, access to other application programs or
Windows functions such as “CTL-ALT-DEL”, “ALT-TAB”, etc. will not be
available.
The “Operations” installation also configures the system so that on a loss of power (or other event that causes
a system restart) the OIS will automatically return to its previous state. S 3 will automatically restart and if online
prior to the event will return online with the last valid user logged in as the current user. If not online the station
will return to the S 3 Main Screen.
ONLINE ENVIRONMENT INSTALLATION PROCEDURE