Siemens SIMATIC NET Bedienungsanleitung

12M bus terminal

___________________

SIMATIC NET

Network components

12M bus terminal

Operating Instructions

07/2013

C79000

-G8976-C333-01

Preface

Introduction

Installation

Technical specifications

Approvals

Siemens Distributor

Siemens AG

Industry Sector

Postfach 48 48

90026 NÜRNBERG

GERMANY

Order number: C79000-G8976-C333

Ⓟ

08/2013 Technical data subject to change

Legal information

Warning notice system

This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent

damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert

symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are

graded according to the degree of danger.

DANGER

indicates that death or severe personal injury will result if proper precautions are not taken.

WARNING

indicates that death or severe personal injury may result if proper precautions are not taken.

CAUTION

indicates that minor personal injury can result if proper precautions are not taken.

NOTICE

indicates that property damage can result if proper precautions are not taken.

If more than one degree of danger is present, the warning notice representing the highest degree of danger will

be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to

property damage.

Qualified Personnel

The product/system described in this documentation may be operated only by

personnel qualified

for the specific

task in accordance with the relevant documentation, in particular its warning notices and safety instructions.

Qualified personnel are those who, based on their training and experience, are capable of identifying risks and

avoiding potential hazards when working with these products/systems.

Proper use of Siemens products

Note the following:

WARNING

Siemens products may only be used for the applications described in the catalog and in the relevant technical

documentation. If products and components from other manufacturers are used, these must be recommended

or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and

maintenance are required to ensure that the products operate safely and without any problems. The permissible

ambient conditions must be complied with. The information in the relevant documentation must be observed.

Trademarks

All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication

may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.

Disclaimer of Liability

We have reviewed the contents of this publication to ensure consistency with the hardware and software

described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the

information in this publication is reviewed regularly and any necessary corrections are included in subsequent

editions.

12M bus terminal

Operating Instructions, 07/2013, C79000-G8976-C333-01 3

Preface

Documentation

You will find information on the use of this product in the following sources:

●in the product documentation

●in the SIMATIC NET PROFIBUS Networks manual

The manual is available on the Internet pages of Siemens Industry Online Support under

the following entry ID:

35222591 (http://support.automation.siemens.com/WW/view/en/35222591)

●in the SIMATIC NET Industrial Communication catalog IK PI

You can request the catalog and additional information from your Siemens

representative.

Contact person

If you cannot find the answer to a technical question about the use of this product in the

sources quoted, contact your Siemens representative in the agencies or offices responsible

for your area.

The addresses are listed:

●in our catalog IK PI

●on the Internet pages of Siemens Industry Online Support

(http://support.automation.siemens.com)

Frequently asked questions

Our customer support on the Internet provides useful information and answers to frequently

asked questions. Here you will find information about the entire product spectrum in the area

Support > FAQs (Frequently Asked Questions): http://www.automation.siemens.com/.

Siemens Distributor

Preface

12M bus terminal

4Operating Instructions, 07/2013, C79000-G8976-C333-01

Hotline

Our hotline is also available to deal with problems:

●Phone

0911-895-7222

(from abroad +49-911-895-7222)

●Telefax

0911-895-7223

(from abroad +49-911-895-7223)

●E-mail

support.automation@siemens.com

12M bus terminal

Operating Instructions, 07/2013, C79000-G8976-C333-01 5

Table of contents

Preface ................................................................................................................................................... 3

1 Introduction............................................................................................................................................. 7

1.1 Included in shipment ......................................................................................................................7

1.2 Description of the product ..............................................................................................................7

1.3 Compatible devices......................................................................................................................11

2 Installation ............................................................................................................................................ 13

2.1 Important notes on using the device............................................................................................13

2.2 Mounting and attaching the bus cable(s).....................................................................................16

2.3 Grounding measures ...................................................................................................................19

3 Technical specifications ........................................................................................................................ 21

4 Approvals.............................................................................................................................................. 23

Index..................................................................................................................................................... 27

Siemens Distributor

Table of contents

12M bus terminal

6Operating Instructions, 07/2013, C79000-G8976-C333-01

12M bus terminal

Operating Instructions, 07/2013, C79000-G8976-C333-01 7

Introduction

1.1

Included in shipment

●12M bus terminal order no. 6GK1 500-0AA10

1.2

Description of the product

Function

The 12M bus terminal is used to attach data terminal equipment (DTE) with an RS-485

interface to a bus cable.

Note

A maximum of 32

12M bus terminals can be connected to one bus segment.

If other components, such as repeaters are connected to a

bus segment, this reduces the

maximum number of 12M bus terminals that can be connected.

Siemens Distributor

Introduction

1.2 Description of the product

12M bus terminal

8Operating Instructions, 07/2013, C79000-G8976-C333-01

Operator controls

The bus terminal consists of the following elements and controls:

●1 terminal block with 6 terminals for wires with a cross-sectional area of ≤ 1.5 mm2

With this terminal block you can connect the incoming and outgoing bus cable and, if

necessary, Protective Earth (PE).

●Screw down clamps for shield contact

●2 switches:

–right-hand switch ("Termination")

With the right-hand switch, you can terminate the end of an incoming, electrical

segment (A1, B1) with the characteristic impedance (switch on). At the same time, the

outgoing, electrical segment (A2, B2) is interrupted.

–left-hand switch

With the left-hand switch you can set the range of the transmission speed 9.6 kbps...

1.5 Mbps and 3 Mbps...12 Mbps.

●A 1.5 m long spur line with a 9-pin D-sub male connector

You can connect a DTE directly to this spur line.

Figure 1-1 Operator controls

Introduction

1.2 Description of the product

12M bus terminal

Operating Instructions, 07/2013, C79000-G8976-C333-01 9

Terminal block

Short name

Meaning

Protective earth connected to the cable shield and DIN rail

Signal line A of the incoming segment side

Signal line B of the incoming segment side

Signal line of the outgoing segment side

Protective earth connected to the cable shield and DIN rail

Terminal block

The following is recommended for PROFIBUS:

●Terminal A - green wire

●Terminal B - red wire

Termination

Activate the termination on the first and last node of the bus segment.

If termination is activated (termination on), the connection between the incoming (A1, B1)

and outgoing (A2, B2) segment is interrupted. If the wrong bus terminating resistors are

activated, it is no longer possible to access stations downstream from the bus terminal.

When a segment is put into operation, there must therefore be no bus terminating resistors

activated that are not located at the start or end of the network.

D-sub male connector

The D-sub male connector is plugged into the D-sub female connector of the DTE and

secured by screws. The 12M bus terminal requires a current of 90 mA with a voltage of 5 V

supplied by the DTE between pins 5 (M5) and 6 (P5) of the D-sub male connector.

Pin no.

Short name

Meaning

Protective earth, connected to the cable shield

B (RxD/TxD-P)

Signal line B

M5 (DGND)

Chassis connection of the 5 volt supply

P5 (VP)

+ 5 volt connection, 90 mA required

8 A (RxD/TxD-N) Signal line A

Casing

Protective earth, connected to the cable shield

D-sub male connector pinout

The impedance of the PROFIBUS interface when receiving must be ≥ 10 kilohms (according

to the EIA standard RS-485). The spur line must not be terminated.

Siemens Distributor

Introduction

1.2 Description of the product

12M bus terminal

10 Operating Instructions, 07/2013, C79000-G8976-C333-01

Segment length and transmission speed

Transmission speed

maximum segment length

9.6 - 187.6 kbps

800 m

500 kbps

400 m

1.5 Mbps

200 m

3 - 12 Mbps

100 m

Permitted segment lengths

Bus cable for PROFIBUS, standard type (see catalog IK PI).

Note

Restriction when using the 12M bus terminal at 500 kbps

This restriction only affects segments longer than 80

If the 12M bus terminal is used at a transmission rate of 500 kbps along with several RS

485

bus terminals with a spur line length of 3.0 m, a

minimum distance of 5 m of PROFIBUS

cable must be maintained between two RS

-485 bus terminals.

You can locate 12M bus terminals anywhere in the segment; there is no minimum distance

between them that needs to be kept to. You can also arrange a 12M bus term

inal between

two RS

-485 bus terminals with 3.0 m spur lines if you make sure that the PROFIBUS cable

between two RS

-485 bus terminals has a total length of at least 5 m.

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