Introduction
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You will find all the commands in the menu bar, and on the toolbar just
below are many of the commonly used commands. To find out what
each icon means, place the mouse over the relevant button, and a
message will be displayed in the Status Bar. In addition, clicking the
right button of the mouse over a window brings up a selection of
commands (a ‘Speed Menu’) relevant to that window.
1.5 How PCNC works
PCNC allows easy network monitoring by converting alert messages into
‘Alarms’. It contains two main databases - one to store information about
your network, and one to store all incoming alarms. These databases
can be viewed through the Network Inspector window and the Alarm
windows respectively. Terminal windows allow you to communicate
directly with devices on your network. Software ‘Links’ transfer
information between the program and the network ports.
The connections between these elements of PCNC are shown in the
schematic diagram below. Each component is more fully described in
Chapter 2.
Network Inspector
Alarm
Database
Network
Database
Auxiliary Link
Alarm Windows
Terminals
Auxiliary
P o r t
Control link
L o c a l
P o r t
SNMP link
TCP/IP
R e m o t e
P o r t
Remote Link
Figure 1.2 - PCNC Program Structure
