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Application Examples

Fault indication over Ethernet (LAN)

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Siemens ET G1 · 10/2008

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Overview

Enhanced plant availability due to early fault detection

Whether dealing with a lamp failure in depots or offices, a

drop in pressure in filters, or pump failure - automated plants

in distributed locations are constantly subject to possible

faults/malfunctions. The earlier such faults are detected, the less

costly they are to remedy. If such plants are being controlled with

GAMMA

instabus

and are connected over LAN/IP, these types

of fault indications can be forwarded over the Internet. A fast

response means that the functionality of the plant is quickly re-

stored and costs are kept to a minimum.

The solution:

The benefits:

• Central solution for distributed locations

• Fast forwarding of fault indications

• Fast responses mean less damage

Proceed as follows:

• Connect one N 148/21 IP interface per location to the KNX

• Connect the N 148/21 IP interface to the LAN

• Configure the N 148/21 IP interface over the Intranet/Internet

• Define the N 148/21 IP interface in your visualization

program/ETS3

You require the following:

• N 148/21 IP interface (5WG1 148-1AB21), 1 per location

• 24 V power supply for N 148/21 IP interface

(e.g. 4AC2 402)

• IPAS ComBridge Studio visualization software

(see chapter "Display, Operation")

• ETS3 (current version see http://www.knx.org)

Note:

• LAN stands for Local Area Network. In LANs, data transport is organized

over the IP (Internet Protocol) – the standard network protocol on the

Internet.

• VPN (Virtual Private Network) lets you set up a secure subnetwork over

an open, unsecured network (Internet, wireless network) by protecting

all communication against access or being tapped into by unauthorized

third parties. This is achieved by means of "tunneling" the data traffic over a

VPN server, which means that any connections must be authenticated and

that all data is also encoded.

Internet VPN connection

or Intranet/LAN

KNX device

Location 1

Location 2

Location 3

KNX device

N 148/21

IP interface

N 148/21

IP interface

N 148/21

IP interface

I2_15416

KNX

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