12
TCP/IP
Fire detection and extinguishant system
Chapter 4
TCP/IP
4.1
Physical Layer
To interconnect several clusters together via TCP/IP protocol, it is necessary that at least one control panel is connected
to the Ethernet network.
This control panel will be indicated as the “gateway” of the cluster and will manage information sharing among
the clusters, as well as the supervision of the TCP/IP network integrity. The icon of this control panel will show
the symbol here at the side.
If instead the icon of a control panel acquires the symbol here beside, it means it is connected to the network
with it own IP address.
4.2
Limits and precautions
The connection of several clusters via the Ethernet network is based on hardware that is not supplied by INIM
Electronics. Therefore, if the connection in the network is based on TCP/IP, it is the sole responsibility of the project
manager who designs the installation to evaluate the use made of it (supervision, display of cross events, cross
activations, etc.). Therefore, it is necessary to define the eventual characteristics of the Ethernet network, introducing,
where appropriate, switches capable of managing dual paths with automatic fault recovery capacity, wiring with different
paths, and to take all the necessary precautions to ensure that the Ethernet physical layer provides fully secure and
redundant capabilities.
4.3
Supervision of the TCP/IP network
Once the TCP/IP network has been configured, if connectivity to a cluster is lost (complete shutdown or FPMCPU
module fault) all the remaining nodes in the network will signal the fault.
4.4
Commissioning the TCP/IP network
For the configuration of a control panel network based on TCP/IP protocol, proceed in accordance with the following
points:
1.
On each cluster of control panels perform the network setup operation (where present) as described in the
previous chapter.
2.
Make sure that each cluster is equipped with an FPMCPU module
connected to the Ethernet network.
If more than one control panel per cluster is connected to the Ethernet
network, it is necessary to select the one that will serve as the gateway
to the cluster (
[A]
). In such cases you must make a note of the IP
addresses of each gateway.
3.
Ensure that the IP address of each control panel and its net mask (
[B]
)
are configured in such a way that they belong to the same class of
addresses as the others.
4.
Using a PC, running the Praesidia-Config configuration software, connected to the same Ethernet network
and configured with a netmask consistent with the control panels, click-on the
Settings
button.
1HWZRUN
,3
%DFNXSSDQHO
1HWPDVN
*DWHZD\
(VF
3RUW
2.
$FFHVV
OHYHO
B
A
