Schneider Electric 170INT11000 Interbus Communication Adapter User Guide

Breite: 178 mm

Höhe: 216 mm

Modicon TSX Momentum

Interbus Communication Adapter

User Guide

870 USE 003 00

10/97

Data, Illustrations, Alterations

Data and illustrations are not binding. We reserve the right to alter products in line with our policy of continuous product development. If you have any suggestions for improvements or amendments or have found errors in this publication, please notify us using the form on one of the last pages of this publication.

Training

Schneider Automation GmbH offers suitable further training on the system.

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See addresses for the Technical Support Centers at the end of this publication.

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Automation GmbH. You are not authorized to translate this document into any other language.



Content

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Chapter 1 Interbus with TSX Momentum Overview . . . . . . . . . . . . . . . . . . . 5

1.1

General Information on Interbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2

General Information on the 170 INT 110 00 Communications Adapter . . . . . . . . .

1.2.1

Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2.2

Environmental Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2.3

Physical Structure

1.2.4

Function

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2.5

Error Control

1.2.6

Isolation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3

Interbus Configuration with TSX Momentum

1.4

Configuration Limits

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 2 Communications Adapter Register Mapping . . . . . . . . . . . . . . 13

2.1

I/O words and ID–code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2

Mapping Data Bits to I/O Base Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2.1

Data Register Mapping for Discrete I/O bases

2.2.2

Data Register Mapping for Analog I/O bases

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Chapter 3 Module Description of 170 INT 110 00 . . . . . . . . . . . . . . . . . . . . . 19

3.1

Communication Adapter Overview

3.2

Preparing the Remote Bus Cable

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.3

LED Status Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4

Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Appendix A EMC Measures for the Communications Adapter . . . . . . . . . . 29

A.1

Overvoltage Protection for Remote Bus Lines (lightning protection) . . . . . . . . . . 30

III

Breite: 178 mm

Höhe: 216 mm

Content

Info.50

Preface

Caution

The relevant regulations must be observed for control applicatons involving safety requirements.

For reasons of safety and to ensure compliance with documented system data, repairs to components should be performed only by the manufacturer.

Breite: 178 mm

Höhe: 216 mm

Preface

Terminology

STOP

Note

This symbol emphasizes very important facts.

Caution

This symbol refers to frequently appearing error sources.

Warning

This symbol points to sources of danger that may cause financial and health damages or may have other aggravating consequences.

Expert

This symbol is used when a more detailed information is given, which is intended exclusively for experts (special training required). Skipping this information does not interfere with understanding the publication and does not restrict standard application of the product.

Example

Tip

This symbol is used for Tips & Tricks.

This symbol emphasizes the begining of an example.

Figures are annotated in the spelling corresponding to international practice and approved by SI (Systéme International d’ Unités).

The notation applied to numerical values conforms to international practice, as well as a SI (Système International d’ Unités) sanctioned representation. This notational format requires a space between hundreds and thousands, and the use of the decimal point (For example: 12 345.67).

Breite: 178 mm

Höhe: 216 mm

Preface

Interbus with TSX Momentum

Overview

The following topics will be reviewed in this chapter:

General information on Interbus

General information on the 170 INT 110 00 communication adapter

Interbus Configuration with TSX Momentum

Configuration limits

Interbus with TSX Momentum Overview

1.1

General Information on Interbus

Interbus is an open communications standard currently supported by over 200 equipment manufacturers with many diverse products. Interbus is a high speed network design to connect I/O Modules, sensors, actuators and control devices with programmable controllers and computer systems.

Interbus is a master/slave network designed for the efficient exchange of I/O data.

It has the capability to communicate with up to 256 devices over a distance of

42,000 feet (13 km) using twisted pair cable, and read 1024 inputs and write 1024 outputs in 4 ms. This provides optimum flexibility in configuration of a control system in terms of the number of I/O drops and communication distances. In addition to system configuration flexibility, Interbus does not compromise system performance or reliability of I/O data. In addition to the Modicon Terminal I/O modules, the use of Interbus compatible control products from other manufacture’s provides an easy to integrate, cost effective control system based on an open system architecture. A typical system configuration using Terminalblock I/O

Modules together with Momentum I/O modules is shown in Figure 2 (page 11).

The 170 INT 110 00 Interbus Communication Adapter provides the communication interface between Momentum I/O base and the Interbus network. This adapter can be plugged into any Momentum I/O base to create a functional I/O unit on the

Interbus network.

Interbus with TSX Momentum Overview

1.2

General Information on the 170 INT 110 00

Communications Adapter

1.2.1

Compatibility

The Interbus communication adapter is compatible with all Momentum I/O bases.

It plugs into any I/O base to form a functional I/O unit communicating on the

Interbus network. The TSX Momentum I/O modules are designed for connection only to the remote bus of the Interbus network.

Figure 1 Front view of a TSX Momentum I/O base and Interbus Communication

Adapter attached

Communications

Adapter

170 INT 110 00

I/O base

TSX Momentum I/O modules operate with every Interbus Master Module which has the Interbus certification.

The 170 INT 110 00 Communications Adapter does not support the PCP protocol.

Width: 178 mm

Height: 216 mm

Interbus with TSX Momentum Overview

1.2.2

1.2.3

1.2.4

1.2.5

Environmental Specification

The adapter conforms to the environmental specification of the I/O base upon which it is installed. For environmental specification refer to the TSX Momentum

I/O bases user manual 870 USE 002 00.

Physical Structure

The communication adapter (safety type IP20) is attached to the I/O base making a connection. Snap–on tabs lock the adapter in place. The adapter can be released with a screwdriver.

With the I/O base there is a label shipped. It fits into an area on the front side of the adapter. In this label, you can write the signal names corresponding to the wired field devices. On the right side of this label, there is a clear window to identify the type of the Communication Adapter.

Function

The communication adapter has two ports (an incoming remote bus and an outgoing remote bus) implemented as RS 485 interfaces. The incoming remote bus is isolated. The interfaces meet Interbus standards (DIN 19258). Each node regenerates the entire message stream before passing it on the next node. As each node handles the message stream, it extracts the portion of the message that is assigned to that node as input data (into the node), and adds output data

(from the node) to the message stream as applicable to that type of node device.

Error Control

The internal voltage supply (Vcc) is provided by the I/O base. Vcc is monitored and a Reset signal is generated if and when Vcc is not within tolerance. The isolated voltage (Vcx) for the Interbus interface is generated via a DC/DC converter and is not controlled.

A Serial Microprocessor Interface controls three display LEDs which indicate the data transfer (Bus Aktiv, Remote Bus Check, Remote Bus Disabled – refer to

”LED Status Displays” page 24). The internal Watchdog timer is 640 ms and when expires the LED ”Bus enabled”, is lightened.

When an I/O base signals an I/O–Error, that signal is transmitted to the bus master via Interbus as a module error.

Interbus with TSX Momentum Overview

1.2.6

Isolation

The picture shows potential isolation/nonisolation between two I/O modules.

Areas with the same grey color have the same reference potential.

I/O module n I/O module n + 1

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ DSUB DSUB DSUB DSUB

9–pin IN 9–pin IN 9–pin OUT

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ

DC/DC DC/DC

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ

Converter Converter

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ

Electronics Electronics

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ

Vcc

GND

Connector Connector

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ

12–pin GND 12–pin

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ

Interface Interface

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ

I/O base I/O base

Width: 178 mm

Height: 216 mm

Interbus with TSX Momentum Overview

1.3

Interbus Configuration with TSX Momentum

The following is a brief summary of the Interbus topology and configuration:

The Interbus serial protocol is implemented as remote and local bus types. Each bus type carries the same signals, but at different electrical levels.

Remote Bus

The remote bus is used for long distance transfer of data, up to 1 200 feet between 2 nodes. Output from the Bus Master board starts the first remote bus.

No power passes through the remote bus cable. Electrical voltage levels are

RS–485. Network operates at 500 k baud, full duplex. Typical remote bus nodes are, for instance, Momentum I/O modules, TIO modules or branch interfaces. The sections between two remote bus nodes are referred to as remote bus segments.

Remote Bus Branch

The remote bus branch is generated by a branch interface (e.g. 170 BNO 671 00).

The branch interface module itself is a remote bus node on the Interbus network.

The Momentum I/O Modules can directly connect to the remote bus branch as well as to the remote bus.

Installation Remote Bus

The installation remote bus is generated by specific bus terminal modules. The bus terminal module itself is a remote bus node. The I/O Modules on the installation remote bus are of a special nature, and can only be used on the installation remote bus.

Note

TSX Momentum I/O modules are designed for connection only to the remote bus and the remote bus branch. They cannot be used on the installation field bus.

Interbus with TSX Momentum Overview

Figure 2 Example of an Interbus Configuration with Momentum I/O Modules

NOA 611

TSX Quantum with Interbus master

CPU

Remote Bus

Branch Interface

170 BNO 671 00

Remote Bus

Remote Bus nodes

Momentum I/O base with 170 INT 110 00 or

Terminal Block I/O

Remote Bus nodes

Momentum I/O base with 170 INT 110 00 or

Terminal Block I/O

Remote Bus Branch

Nodes on remote bus branch

Momentum I/O base with 170 INT 110 00 or

Terminal Block I/O

Width: 178 mm

Height: 216 mm

Interbus with TSX Momentum Overview

1.4

Configuration Limits

Table 1 Interbus Configuration Limits for Standard PLC (e.g. TSX Quantum)

Parameters

max. number of nodes (slaves) max. distance between 2 nodes max. distance between 2 nodes max. distance between 2 nodes max. length of network max. number of I/O points

Transfer Rate

Data throughput for 1 000 I/O points

Limitations

256

Twisted pair, shielded = 400 m (1 200 ft)

Fiber optic (HCS) = 300 m (900 ft) fiber optic cable, polymer fiber = 50 m (150 ft)

13 km (8 mi)

4096

500 kBits/s

~ 4 ms

Communications Adapter Register

Mapping

The following topics will be reviewed in this chapter:

I/O words and ID–code

Mapping Data Bits to I/O Base Terminals

Width: 178 mm

Height: 216 mm

Communications Adapter Register Mapping

2.1

I/O words and ID–code

Example

After the I/O module is powered–up, the identification code (ID code) of the module base is automatically read by the communication adapter. The ID–code provides the Interbus master with the type of data (input or output) and the number of words in the message for each module. After the I/O modules identification codes are received, the Interbus master will automatically begin the execution of

I/O data communication in real time.

The length is in each case expressed in I– or O–words, with the higher number being the decisive factor. The number of words it can contain is: 1 to 10, 12, 14,

16, 24 or 32 words.

The ID–code for the 170 ADM 350 10 is 0103 hex.

01 = Length statement, indicating that the module needs one word (I– or O–word) for data transfer

03 = Module Type, indicates that this module has inputs and outputs

Table 2 I/O Base Word Number and ID Code (analog I/O bases)

Description

170 AAI 140 00

Function

16 input channels

170 AAI 520 40

170 AAO 120 00

170 AAO 921 00

170 AMM 090 00

4 input channels, RTD, Therm.

4 output channels, 0 ... 20 mA

4 output channels, 4 ... 20 mA

4 inputs, 2 outputs (discrete)

4 input & 2 output channels (analog)

I–Words O–Words ID Code

16 4 1033 hex

1651 dec

4 4

0433 hex

0451 dec

0531 hex

0549 dec

0531 hex

0549 dec

0533 hex

0551 dec

Width: 178 mm

Height: 216 mm

Communications Adapter Register Mapping

Table 3 I/O Base Word Number and ID Codes (discrete I/O bases)

Description

170 ADI 340 00

170 ADI 350 00

170 ADI 540 50

Function

16 inputs

32 inputs

16 inputs

170 ADO 340 00 16 outputs

170 ADO 350 00 32 outputs

170 ADO 530 50 8 outputs

170 ADO 540 50 16 outputs

170 ADO 730 50 8 outputs

170 ADO 740 00 16 outputs

170 ADM 350 10 16 inputs, 16 outputs

170 ADM 350 11 16 inputs, 16 outputs

170 ADM 370 10 16 inputs, 8 outputs

170 ADM 390 10 16 inputs, 12 outputs

170 ADM 390 30

170 ADM 690 50

10 inputs, 8 outputs

I–Words

3 (1 discrete and

2 diagnostics)

O–Words ID Code

0102

0202

0102

0101

0201

0101

0103

0303

0103

Communications Adapter Register Mapping

2.2

2.2.1

Mapping Data Bits to I/O Base Terminals

Data Register Mapping for Discrete I/O bases

The data transmitted to or from the I/O base are transfered 1 : 1 from/to the communication adapter.

Data in controller registers is mapped to the field terminals of discrete I/O bases in the following way:

Mapping is done by words (max. 2 for 32 I’s or O’s).

The Most Significant Word (MSW) is always sent or received first.

The words sent by the communications adapter to the I/O base represent the outputs (Output–words).

The words sent from the I/O base to the communications adapter represent the inputs (Input–words).

Data mapping for two discrete I/O bases is shown as an example:

Figure 3 I/O Mapping of the 170 ADI 350 00 (32 Inputs) and 170 ADO 350 00

(32 Outputs)

Input Data from 170 ADI 350 00

MSW = Word 2

Inputs 17 ... 32

Output Data to 170 ADI 350 00

MSW = Word 2

Outputs 17 ... 32

LSW = Word 1 Inputs 1 ... 16 LSW = Word 1 Outputs 1 ... 16

Additional documentation: Refer to the I/O bases User Manual (870 USE 002

00) for further information.

Communications Adapter Register Mapping

2.2.2

Data Register Mapping for Analog I/O bases

Data in controller registers is mapped to the field terminals of analog I/O bases in the following way:

Each analog value is mapped to one word.

The Most Significant Word (MSW) is sent or received first.

The words sent by the communications adapter to the I/O base represent the output values and parameters (Output–words).

The words sent from the I/O base to the communications adapter represent the input values and status (Input–words).

Data mapping for one analog I/O base is shown as an example:

Figure 4 I/O Mapping of the 170 AAI 140 00 (16 Input Channels) e.g.

Input Data from 170 AAI 140 00 Output Data to 170 AAI 140 00

MSW = Word 16

Value channel 16

MSW = Word 16

empty

Word 15

Value channel 15

Word 5

Value channel 5

Word 15

empty

Word 5

empty

Word 4

Value channel 4

Word 3

Value channel 3

Word 2

Value channel 2

LSW = Word 1

Value channel 1

Word 4

Parameters, Channels 13 ... 16

Word 3

Parameters, Channels 9 ... 12

Word 2

Parameters, Channels 5 ... 8

LSW = Word 1

Parameters, Channels 1 .. 4

Additional documentation: Refer to the I/O bases User Manual (870 USE 002

00) for further information.

Width: 178 mm

Height: 216 mm

Communications Adapter Register Mapping

Width: 178 mm

Height: 216 mm

Module Description of

170 INT 110 00

The following topics will be reviewed in this chapter:

Communication Adapter Overview

Preparing the Remote Bus Cable

LED Status Displays

Technical Specifications

Module Description of 170 INT 110 00

3.1

Communication Adapter Overview

The Interbus Communiation Adapter can be operated with any TSX Momentum

I/O base.

Table 4 Basic Data

Module Type

Power Supply

Transfer Rate

Bus length

Communication Adapter for Interbus,Remote Bus only

5 VDC / 250 mA (from I/O base)

500 K bits/s

400 m, 1200 ft. (single module spacing) up to

13 000 m, 8 mi (total bus length)

IN (pins) OUT (sockets)

Module Elements:

1. Interbus connector

2. LED Display

3. Label (shipped with the I/O base)

3.2

Module Description of 170 INT 110 00

Preparing the Remote Bus Cable

Modules at inline sites on the Interbus remote bus cable will have two connections.

One connection is to the incoming bus cable, and the other is to the outgoing bus cable.

Modules at end sites on the network cable will have one connection. This is to the incoming bus cable only.

You should plan to provide a complete cabling diagram for your network installation, showing the cable routing path and methods of securing the cable.

Your diagram should identify incoming and outgoing cables at each module site.

Figure 5 Top view of a TSX Momentum I/O Module base and Interbus

Communication Adapter attached

Rear Panel

Incoming bus connector

(pins)

Front Panel

Outgoing bus connector

(sockets)

Figure 6 Connectors on Interbus Communication Adapter

Interbus input (pins) Interbus output (sockets)

Pin assigned free

Width: 178 mm

Height: 216 mm

Module Description of 170 INT 110 00

Modicon provides pre-fabricated Interbus cables in four lengths. Each cable has two connectors installed for direct interconnection between two modules. Modicon also provides a connector kit for installation onto user-supplied cable. The kit contains one pin and one socket connector (ordering details see specs).

Please note the following general requirements:

The maximum remote–bus cable length is 13 km (8 mi.). The cable length between two remote–bus nodes must not exceed 400 m (1200 ft)!

Ready–made off–the–shelf cables are available for the remote bus: see specs. Custom lengths need to be prepared by the user.

The connectors for the outgoing remote bus are always pins, those for the incoming remote bus are always sockets.

In the outgoing remote bus connector, pins 5 und 9 must be connected (refer to scematic the figure below)!

Connect the cable shield to the connector.

For the remote bus you will need a 5–wire cable, twisted–pair type, shielded; this cable is available by the meter (KAB–3225–LI).

Wire the connectors of the remote bus cable as follows:

Outgoing Remote Bus (pins) Incoming Remote Bus (sockets)

Width: 178 mm

Height: 216 mm

Module Description of 170 INT 110 00

Pin Wire

Color

yellow grey

Connectionoutgoing remote bus

DO – Data Out

DI – Data IN brown Common

GND – Reference conductor, fiber–optic adapter

Vcc – Power supply for fiber–optic adapter green DO_N – Data Out Negated pink DI_N – Data IN Negated

Vcc – Additional power supply for fiber–optic adapter

Plug identification

Pin Wire

Color

yellow grey

Connectionoutgoing remote bus

DO – Data Out

DI – Data IN brown Common*

GND* – Reference conductor, fiber–optic adapter

Vcc* – Power supply for fiber–optic adapter green DO_N – Data Out Negated pink DI_N – Data IN Negated

Vcc* – Additional power supply for fiber–optic adapter not used

*) physically isolated

Module Description of 170 INT 110 00

3.3

LED Status Displays

Table 5 LED Status Displays

LED

Status

Green

Function

Bus enabled. Data messages are being transmitted.

Off

No data messages are being transmitted.

Green Remote Bus Check. Incoming remote bus is correctly connected and the Bus Reset of the Busmaster is disabled.

Incoming remote bus not connected or incorrectly connected, or

Busmaster Bus Reset is enabled.

Red

Off

Remote Bus Disabled. Extended remote bus is switched off.

Extended remote bus is not switched off.

3.4

Module Description of 170 INT 110 00

Technical Specifications

General

Power consumption

< 200 mA at 5 V (supplied by I/O base) excluding fiber–optic adapter

< 400 mA at 5 V (supplied by I/O base) including two fiber–optic adapters

0.8 W (typ) without fiber–optic adapter

Power dissipation

Potential Isolation

RS 485 (remote bus in)

RS 485 (remote bus out)

Error Detection

Data Exchange isolated from remaining logic no isolation

Red LED for bus errors (RD) and error message from I/O unit (module error).

Fuses

Supply voltage Vcc Internal (for bus adapter) – None

External (for I/O base – as per default by designating the appropriate I/O base

Interbus Data Interface

Interface Mapping

RS 485

Bus Length

max. 8 mi. (13 km) over all bus length max. 1 200 ft. (400 m) between 2 modules

Option

refer to Preparing the Remote Bus Cable

Transfer Rate

500 kBits/s

Fiber–optic Adapter

Width: 178 mm

Height: 216 mm

Module Description of 170 INT 110 00

How to order:

Description

Interbus Communication Adapter

Remote Bus Cable (sold by the meter)

Interbus connector set, sockets/pins, 9–pin

Interbus Cable, 11 cm (0.36 ft), with small connectors

Interbus Cable, 8 cm (0.26 ft) compatible to TIO and Momentum

Interbus Cable, 25 cm (0.8 ft) compatible to TIO and branch interface

Interbus Cable, 100 cm (3.3 ft)

Set of Labels, qu’ty of 10.

Part No.

170 INT 110 00

KAB–3225–LI

170 XTS 009 00

170 MCI 007 00

170 MCI 008 00

170 MCI 025 00

170 MCI 100 00

170 XCP 100 00

Appendix

Breite: 178 mm

Höhe: 216 mm

EMC Measures for the

Communications Adapter

Overvoltage Protection for Remote Bus Lines

Width: 178 mm

Height: 216 mm

EMC Measures for the Communications Adapter

A.1

Overvoltage Protection for Remote Bus Lines

(lightning protection)

To protect transmission systems from flash–over voltage surges (e.g. lightning), the remote bus line should be equipped with overvoltage protectors (lightning arrestors) whenever it is installed outside a building. The nominal discharge current should be at least 5 kA, for instance by using a type ARE, Cat. Nr. 919 232 made by

Dehn und Söhne, Postfach 1640, 92 306 Neumarkt, Germany or

Dehn und Söhne, Hans– Dehn– Str. 1, 92 318 Neumarkt, Germany

Protecting a remote bus cable requires three ARE lightning arrestors per building.

Width: 178 mm

Height: 216 mm

EMC Measures for the Communications Adapter

Figure 7 Circuit layout and dimensions of the ARE lightning arrestor

IN OUT

OUT

17.5

5 35

EMC Measures for the Communications Adapter

Figure 8 Schematic of ARE lightning arrestor connection

gn ye gr rd

ÒÒ

ÒÒ br (GND)

Shielding

6 mm

ARE ARE ARE

DIN-

Top hat rail

Outdoors ye gn gr rd

ÒÒ

Protective Ground

6 mm

Functional Ground

Shielding

ÒÒ br (GND)

ÒÒ

ARE ARE ARE

ÒÒ

Building 1 Building 2

Remote Bus Line LiYCY (TP)

Grounding clamp

Make sure to observe the following rules:

Do not mix the wires as you run them.

Do not mismatch the IN- and OUT ends of the ARE (IN = outdoors)

Install a functional ground (potential–equalization rod)

Install the lightning arrestor near the building ground so as to establish a short discharge path for the surge current. Keep the line to the building and functional ground (at least 6 mm2) as short as possible.

In a remote bus line you can connect a maximum of 10 lightning arrestors in series, with five outdoor segments which can interlink up to six buildings.

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