Siemens SINAUT ST7 User manual

SINAUT ST7
Dedicated Line Modem MD2
Operating Instructions Edition 07/2002
SINAUT – Telecontrol
with SIMATIC S7

Overview 1
Mounting and
Installation
2
Instructions for
Operation with SINAUT
ST1
3
Operating Modes and
Character Recognition
4
Network
Configurations
5
Technical Data 6
7
8
9
Problem Report 10
SINAUT ST7
Dedicated Line Modem
MD2
Operating Instructions
Edition 07/2002

SINAUT® Documentation
Certified Siemens Quality for Software and Training
according to DIN ISO 9001, Reg. No. 2160-01
This documentation was created with Microsoft Word97 and the
documentation tool AutWinDoc.
The reproduction, transmission or use of this document or its contents
is not permitted without express written authority. Offenders will be
liable for damages. All rights, including rights created by patent grant or
registration of a utility model or design, are reserved.
© Siemens AG 2002. All Rights Reserved.
It is possible that there are operable functions in the device that are
not described in this documentation. However, no claims can be made
for these functions for new delivery or in cases of servicing.
We have checked the contents of this manual for agreement with the
hardware and software described. Deviations, however, cannot be
entirely precluded. The information in this manual is reviewed regularly
and any necessary corrections included in subsequent editions.
Suggestions for improvement are welcome.
Technical data subject to change.
Order no. 6NH7811-0AA22
Printed in the Federal Republic of Germany Siemens-Aktiengesellschaft.

Preface
© Siemens AG 2002 All Rights Reserved 6NH7811-0AA22
MD2 Modem(07/2002)iii
Preface
Notes
This documentation uses the following conventions for pointing out information of
special importance:
Note
This symbol draws your attention to information on the product, handling the
product, or to a particular part of the documentation.
!Important
This symbol draws your attention to particularly important information on the
product, handling the product, or to a particular part of the documentation.
Notes of Warning
The following notes are used in the documentation for various levels of warning:
!
Danger
This symbol indicates that death, severe personal injury or substantial property
damage will result if proper precautions are not taken.
!
Warning
This symbol indicates that death, severe personal injury or substantial property
damage can result if proper precautions are not taken.
!
Caution
This symbol indicates that minor personal injury or property damage can result if
proper precautions are not taken.

Contents
© Siemens AG 2002 All Rights Reserved 6NH7811-0AA22
MD2 Modem(07/2002)v
Contents
Overview........................................................................................................................................................1-1
1.1 Areas of Application......................................................................................................1-2
1.2 Main Features ................................................................................................................1-3
1.3 Compatibility to SINAUT ST1 Modems......................................................................1-4
1.4 Standard Cables ............................................................................................................1-5
1.5 Certification and CE Labeling......................................................................................1-6
1.5.1 Certification Provisions .................................................................................................1-6
1.5.2 Notes about CE Labeling..............................................................................................1-8
Mounting and Installation..........................................................................................................................2-1
2.1 Design of the MD2 Modem ..........................................................................................2-2
2.1.1 Front View of an MD2 with Closed Front Doors .......................................................2-2
2.1.2 LED Display of the MD2................................................................................................2-3
2.1.3 Front View of an MD2 with Removed Front Doors...................................................2-4
2.1.4 Pin Assignments for the RS232 and RS485 Ports...................................................2-5
2.1.5 Standard Cables for the RS232 and RS485 Ports...................................................2-6
2.1.6 View of the MD2 Modem from Above.........................................................................2-9
2.1.7 Settings for the DIL Switches Accessible from Above .............................................2-9
2.1.8 View of the MD2 Modem from Below.........................................................................2-17
2.1.9 DIL Switch for Activating the RS232 or RS485 Port................................................2-18
2.1.10 DIL Switch for Activating Terminating Resistors (WAN)..........................................2-18
2.1.11 Pin Assignments on the RJ12 Western Socket........................................................2-19
2.1.12 Standard Cable for the RJ12 Port...............................................................................2-20
2.2 Connecting an MD2 to DTE, LTOP and Dedicated Line.........................................2-21
2.2.1 Connecting an MD2 with a DTE via the RS232 Port...............................................2-21
2.2.2 Connecting Several MD2s with a DTE via the RS485 Port....................................2-24
2.2.3 Connecting Two MD2s to Function as a Repeater..................................................2-27
2.2.4 Transmission Speeds and Frequencies of the MD2 Modem .................................2-28
2.2.5 Signal Loss Values ........................................................................................................2-29
2.2.6 Maximum Range (km)...................................................................................................2-29
2.2.7 Determination of the receive level...............................................................................2-31
2.3 LTOP Line Transformer with Overvoltage Protection..............................................2-32
2.3.1 Design..............................................................................................................................2-32
2.3.2 Connecting the MD2 Modem.......................................................................................2-34
2.4 Mounting..........................................................................................................................2-37
2.4.1 Mounting on an S7-300 Mounting Rail.......................................................................2-37
2.4.2 Mounting on a Standard 35mm Mounting Rail.........................................................2-38
2.4.3 Horizontal and Vertical Mounting................................................................................2-39
2.4.4 Connecting to the Power Supply.................................................................................2-40

Contents
© Siemens AG 2002 All Rights Reserved 6NH7811-0AA22
MD2 Modem(07/2002)vi
Instructions for Operation with SINAUT ST1.......................................................................................3-1
3.1 Compatibility to SINAUT ST1 Modems......................................................................3-2
3.2 Connecting the MD2 to a TIM11 and TIM011B........................................................3-3
3.2.1 Modem Settings .............................................................................................................3-4
3.2.2 Configuration Required for TIM11 and TIM011B......................................................3-6
3.2.3 Avoiding Problems When Exchanging Modems.......................................................3-6
Operating Modes and Character Recognition.....................................................................................4-1
4.1 MD2 Operating Modes..................................................................................................4-3
4.1.1 "Normal" Operating Mode.............................................................................................4-5
4.1.2 "Normal" with DTR/RTS on" Operating Mode...........................................................4-5
4.1.3 "Repeater" Operating Mode.........................................................................................4-6
4.1.4 "With RS485 Interface" Operating Mode...................................................................4-7
4.1.5 "Signal refresh off" Operating Mode...........................................................................4-8
4.1.6 Test Operating Modes ..................................................................................................4-9
4.2 Character Recognition of the MD2..............................................................................4-23
4.2.1 Character Recognition "Asynchronous 11 Bit"..........................................................4-24
4.2.2 Character Recognition "Asynchronous 10 Bit"..........................................................4-24
4.2.3 "MID on" Character Recognition.................................................................................4-25
4.2.4 "MID off" Character Recognition.................................................................................4-26
Network Configurations.............................................................................................................................5-1
5.1 Network Configurations with RS232...........................................................................5-2
5.1.1 Point-to-Point, 4-wire Full-duplex................................................................................5-3
5.1.2 Point-to-Point, 2-wire Half-duplex................................................................................5-5
5.1.3 Multidrop Line, 4-wire Full-duplex...............................................................................5-7
5.1.4 Multidrop Line, 2-wire Half-duplex...............................................................................5-10
5.1.5 Star Network via the MD2-internal Two-way Transformer, 2-wire Half-duplex...5-13
5.1.6 Star Network via an External Multiple Transformer, 2-wire Half-duplex..............5-17
5.1.7 Star Network via an External Multiple Transformer, 4-wire Full-duplex...............5-21
5.1.8 Repeater, 4-wire Full-duplex........................................................................................5-24
5.1.9 Repeater, 2-wire Half-duplex.......................................................................................5-28
5.2 Network Configurations with RS485...........................................................................5-32
5.2.1 Point-to-Point, 2-Wire Half-duplex (RS485 Interface)..............................................5-33
5.2.2 Point-to-Point with Fiber Optic Section, 2-wire Half-duplex (RS485 Interface)...5-35
5.2.3 Multidrop Line, 2-Wire Half-duplex (RS485 Interface).............................................5-37
5.2.4 Multidrop Line with Fiber Optic Section, 2-wire Half-duplex (RS485 Interface)..5-40
5.2.5 Star Network, 2-Wire Half-duplex (RS485 Interface)...............................................5-42
5.2.6 Repeater, 2-Wire Half-duplex (RS485 Interface)......................................................5-46
5.3 Network Configurations for DTE without RTS/CTS..................................................5-50
5.3.1 Point-to-Point, 4-wire Full-duplex................................................................................5-51
5.3.2 Point-to-Point with Repeater, 4-wire Full-duplex......................................................5-53
Technical Data..............................................................................................................................................6-1
6.1 Function Plan of the MD2.............................................................................................6-2
6.2 Technical Data ...............................................................................................................6-3
6.2.1 DTE interfaces................................................................................................................6-3
6.2.2 FSK Line Interface.........................................................................................................6-4
6.2.3 Frequencies, Attenuation and Maximum Range......................................................6-5
6.2.4 General Data ..................................................................................................................6-7

Contents
© Siemens AG 2002 All Rights Reserved 6NH7811-0AA22
MD2 Modem(07/2002)vii

Contents
© Siemens AG 2002 All Rights Reserved 6NH7811-0AA22
MD2 Modem(07/2002)viii

To
Siemens AG Suggestions
Corrections
I&S OCW TI Correspondence to:
SINAUT ST7
D-76181 Karlsruhe, Germany Dedicated Line Modem MD2
Operating Instructions
Sender
Name:
Order no.: 6NH7811-0AA22
Edition: 07/2002
Address of your company/office
Street:
ZIP: __________ City:
Tel: __________ /
Fax: __________ /
E-mail:
If you notice typographical errors in this
document please use this form to inform us.
We would also be grateful for your
suggestions and criticisms.
Suggestions and/or corrections

© Siemens AG 2002 All Rights Reserved 6NH7811-0AA22
MD2 Modem (07/2002)1-1
Overview
1.1 Areas of Application......................................................................................1-2
1.2 Main Features................................................................................................1-3
1.3 Compatibility to SINAUT ST1 Modems......................................................1-4
1.4 Standard Cables ............................................................................................1-5
1.5 Certification and CE Labeling......................................................................1-6
1.5.1 Certification Provisions .................................................................................1-6
1.5.2 Notes about CE Labeling .............................................................................1-8
1

Overview
6NH7811-0AA22 © Siemens AG 2002 All Rights Reserved
1-2MD2 Modem (07/2002)
1.1Areas of Application
The MD2 modem (see Fig. 1-1) is an FSK dedicated line modem for half-duplex
data transmission via a 2-wire or duplex data transmission via a 4-wire multi-point
dedicated line. The MD2 can also be used as a repeater on a 2-wire and 4-wire
dedicated line.
It was developed as a component of the SINAUT ST7 station control system but
can also be used as a normal dedicated line modem independent from this system.
Due to its design and its electrical properties, the MD2 is suited for use in industrial
applications.
Fig. 1-1SINAUT MD2 Modem

Overview
© Siemens AG 2002 All Rights Reserved 6NH7811-0AA22
MD2 Modem (07/2002)1-3
1.2Main Features
The MD2 modem has the following features:
•SIMATIC S7-300 design (see Fig. 1-1)
•Can be mounted on a S7-300 mounting rail or a 35 mm standard rail
(using the optional adapter 6NH7760-0AA)
•24 V DC power supply connection, power consumption 100 mA
•RS232 port (9-pin sub-D plug) and RS485 port (9-pin sub-D socket)
•Potential insulation between power supply and RS232/RS485 interface
•Choice of 4 different transmission speeds: 1200, 2400, 9600 or 19200 bps
•It is possible to use baud rates lower than 1200 bps in several operating modes
(compared to 1200 bps no range extension can be achieved with lower baud
rates)
•Choice of 4-wire full-duplex or 2-wire half-duplex transmission mode
•Integrated double transformer for two 2-wire lines
•Send level can be switched from -6 to 0 dB
•Tapping capable
•Parallel connection of several MD2s to one data terminal (DTE, data terminal
equipment), for example to connect a star network
•Integrated repeater function (by connecting two MD2s) for range multiplication
•Conversion from 2-wire to 4-wire or from 4-wire to 2-wire is possible in repeater
mode
•Switched optocoupler output with RTS signal for switching connected radio
equipment on and off
•RS485 interface for 2-wire half-duplex with automatic direction recognition
•Automatic refresh of received data before transfer to the DTE
•Certified for telecom leased lines using 1200 and 2400 bps. This only applies to
purely analog telecom leased lines. For telecom leased lines using
analog/digital conversion, only 1200 bps can be used (see section 1.5)

Overview
6NH7811-0AA22 © Siemens AG 2002 All Rights Reserved
1-4MD2 Modem (07/2002)
1.3Compatibility to SINAUT ST1 Modems
In certain operating modes the MD2 modem is compatible to the dedicated line
modems that are used for SINAUT ST1. This compatibility is ensured in two ways:
1. You can build a new SINAUT station into an existing ST1 network and use the
MD2 modem to exchange data with an existing ST1 dedicated line modem as
the partner.
2. You can use the MD2 modem as a replacement for a defective ST1 dedicated
line modem.
The following table provides a compatibility matrix of the MD2 modem in
connection with the dedicated line modems used in the SINAUT ST1 system.
Table 1-1Compatibility matrix of the MD2 modem and SINAUT ST1 dedicated line
modems
SINAUT ST1 Dedicated Line ModemOperating Mode
of the MD2 LGM 1200H1 MD100 MD124
1200 bps hx (2-wire) X X X
1200 bps dx (4-wire) -X X
2400 bps hx (2-wire) - - X
2400 bps dx (4-wire) - - X
9600 bps hx (2-wire) - - -
9600 bps dx (4-wire) - - -
19200 bps hx (2-wire) - - X
19200 bps dx (4-wire) - - X
Note
When the MD2 is connected to a DTE in the control center via the RS485
interface, it is not compatible to the MD100 or LGM 1200H1 modem.

Overview
© Siemens AG 2002 All Rights Reserved 6NH7811-0AA22
MD2 Modem (07/2002)1-5
1.4Standard Cables
The following standard cables are available for the RS232 and RS485 interfaces.
Table 1-2Standard cable for the MD2 modem
Order no. Description Diagram
6NH7701-4AL Cable for connecting the MD2 modem (RS232)
with a TIM3V/TIM4 (RS232) or an other
terminal (DTE) with an identically configured 9-
pin RS232 interface.
Cable length 1.5 m
6NH7701-4DL Cable for connecting the MD2 modem (RS485)
with a TIM3V/TIM4 (RS485) or an other
terminal (DTE) with an identically configured 9-
pin RS485 interface.
Cable length 1.5 m
6NH7701-1CB Cable for connecting two MD2 modems
(RS232) to form a repeater.
Cable length 0.3 m
6NH1701-7AN Cable for connecting the MD2 modem (RS232)
with a TIM11 (RS232) or an other terminal
(DTE) with an identically configured 25-pin
RS232 interface (socket) and slide lock.
Cable length 2.5 m
6NH1701-7BK Cable for connecting the MD2 modem (RS232)
with a TIM011B (RS232) or an other terminal
(DTE) with an identically configured 25-pin
RS232 interface (socket) and screw lock.
Cable length 1.0 m
Tables 2-5 to 2-9 in Chapter 2, Mounting and Installation, show the configuration of
the cables listed above.
TIM3V/4
DTE
MD2
MD2
TIM11
DTE
MD2
TIM011B
DTE
TIM3V/4
DTE
MD2
MD2 MD2

Overview
6NH7811-0AA22 © Siemens AG 2002 All Rights Reserved
1-6MD2 Modem (07/2002)
1.5Certification and CE Labeling
1.5.1Certification Provisions
The MD2 modem is certified for use across Europe for connection to analog 2-wire
or 4-wire leased lines.

Overview
© Siemens AG 2002 All Rights Reserved 6NH7811-0AA22
MD2 Modem (07/2002)1-7

Overview
6NH7811-0AA22 © Siemens AG 2002 All Rights Reserved
1-8MD2 Modem (07/2002)
1.5.2Notes about CE Labeling
Product Description
Product
Description Order No. EMC TCE
MD2 6NH7810-0AA20 ** 1
EC Guidelines EMC 89/336/EEC
The product described above complies with the requirements of the EC Directive
89/336/EEC "Electromagnetic Compatibility" and the Harmonized European
Standards (EN) published in this connection.
EC Guidelines TCE 1999/5/EEC
The product described above complies with the requirements of the EC Directive
1999/5/EC "Directive of the European Parliament and Council Governing Radio
and Telecommunication Equipment and the Mutual Recognition of their
Conformity".
In accordance with the EC directive described above, the EC conformity
declarations are kept available at the following address:
Siemens Aktiengesellschaft
Industrial Solutions & Services
I&S IS 6 E D
P.O. Box 3249
D-91050 Erlangen
Germany
Operating Areas
The product fulfills the following requirements:
Requirement
Interference emission Interference immunity
Equipment in non-protected
environment -EN 60870-2-1 : 1996
Industry *EN 55022 (A) : 1998 -
Residential ** EN 55022 (B) : 1998 -
CTR / TBR 15 Analog 2-wire leased lines
CTR / TBR 17 Analog 4-wire leased lines
Observe Installation Guidelines
The product complies with the requirements when the product information and the
installation guidelines described in the product documentation are observed during
installation and operation.

© Siemens AG 2002 All Rights Reserved 6NH7811-0AA22
MD2 Modem (07/2002) 2-1
Mounting and Installation
2.1 Design of the MD2 Modem...................................................................2-2
2.1.1 Front View of an MD2 with Closed Front Doors ...................................2-2
2.1.2 LED Display of the MD2.......................................................................2-3
2.1.3 Front View of an MD2 with Removed Front Doors...............................2-4
2.1.4 Pin Assignments for the RS232 and RS485 Ports ...............................2-5
2.1.5 Standard Cables for the RS232 and RS485 Ports ...............................2-6
2.1.6 View of the MD2 Modem from Above...................................................2-9
2.1.7 Settings for the DIL Switches Accessible from Above..........................2-9
2.1.8 View of the MD2 Modem from Below...................................................2-17
2.1.9 DIL Switch for Activating the RS232 or RS485 Port.............................2-18
2.1.10 DIL Switch for Activating Terminating Resistors (WAN).......................2-18
2.1.11 Pin Assignments on the RJ12 Western Socket....................................2-19
2.1.12 Standard Cable for the RJ12 Port ........................................................2-20
2.2 Connecting an MD2 to DTE, LTOP and Dedicated Line ......................2-21
2.2.1 Connecting an MD2 with a DTE via the RS232 Port............................2-21
2.2.2 Connecting Several MD2s with a DTE via the RS485 Port ..................2-24
2.2.3 Connecting Two MD2s to Function as a Repeater...............................2-27
2.2.4 Transmission Speeds and Frequencies of the MD2 Modem................2-28
2.2.5 Signal Loss Values...............................................................................2-29
2.2.6 Maximum Range (km)..........................................................................2-29
2.2.7 Determination of the receive level........................................................2-31
2.3 LTOP Line Transformer with Overvoltage Protection...........................2-32
2.3.1 Design..................................................................................................2-32
2.3.2 Connecting the MD2 Modem................................................................2-34
2.4 Mounting ..............................................................................................2-37
2.4.1 Mounting on an S7-300 Mounting Rail .................................................2-37
2.4.2 Mounting on a Standard 35mm Mounting Rail .....................................2-38
2.4.3 Horizontal and Vertical Mounting .........................................................2-39
2.4.4 Connecting to the Power Supply..........................................................2-40
2