|
|
|
| |
|
The
WEB-FAQtory Server
is the heart of the WEB-FAQtory Distributed SCADA System.
Clients report all data changes, alarms, property changes,
logon/logffs etc. back to the Server
for central store in a database. The Server
orchestrates all Monitor connections to Clients, provides
central Security and a DNS service for the Clients and
Monitors (as well as hundreds of other functions). Virtually
unlimited Clients can connect, simultaneously to the
Server.
Database: Microsoft SQLServer 2000. Oracle 8/9i,
MySQL (any version), Access 2000, VFP.
Optimized for the smallest possible database file size
(very important if you need to save several hundred
readings per second, over a year or more).
Full real-time display of all client data with trending
individually or by client(s). Trend/report on unlimited
Servers
Instant display of Client alarms and network failures.
Locate anywhere. Central site serving Clients on a LAN,
remotely over the Internet or a mix of both.
Internal monitoring of all controls for errors/inactivity
with guaranteed recovery. This software is designed
to run, 24/365 unattended in extremely hostile environments.
As long as the OS is running, so is the Server.
Should the server
computer crash/power off, all Clients and Monitors display
a warning and Clients buffer data. Normal shutdowns
of the server
for re-boots etc. are signaled to all Clients to begin
buffering so the server
computer can safely go down without any possible loss
of data. How long the Server
can be down depends on how many records the Clients
can buffer but in most cases it would be several days.
Of course if the Server
suddenly goes on-line after a break of several days,
expect 100% CPU utilization on the server
computer for quite some time.
Maintains the client IP address/name lookup for Monitors
to connect to Clients. This allows dial-up clients and
monitors to use dynamically assigned IP addresses (cheapest,
easiest connection and only one available in 3rd world).
Works behind Proxys/Firewalls.
Clients can run on the same computer as the Server
(Monitors also).
Full Access and Excel Database/Worksheet for customized
analaysis/reporting. |
|
|
