SIMATIC NET DP/RS 232C Link

SIMATIC NET DP/RS 232C Link

(Parte 1 de 10)

SIMATIC NET DP/RS 232C Link

User DescriptionDate 10/20/1999

User Description

Ga tewa y DP/RS 232C Link

Page 4Release: 1.58VHU ’HVFULSWLRQ 10/99Copyright (C) Siemens AG 1999. All rights reserved.

Disclaimer of liability Although we have checked the contents of this publication for agreement with the actual hardware and software, responsibility for complete agreement cannot be accepted. The information in this document is reviewed at regular intervals and necessary corrections included in later releases. Your suggestions are welcome.

Copyright Copyright (C) Siemens AG 1999. All rights reserved

Passing on of this document, duplication, utilization and revelation of its contents is prohibited unless express permission is granted. Violations will be subject to damages. All rights reserved, particularly in the event a patent is granted or a utility model is registered.

Subject to change without prior notice

8VHU ’HVFULSWLRQRelease: 1.5Page 5 Copyright (C) Siemens AG 199. All rights reserved.10/9

’DWD &RPPXQLFDWLRQ 6.2.1 Introduction of Data Communication by the Low-Priority Station14 6.2.2 Conflicts15 6.2.3 Introduction of Data Communication by the High-Priority Station15

3OXJ &RQQHFWRU 10.2.1 Plug Connector to External Device18 10.2.2 PROFIBUS-DP Plug Connector18 10.2.3 Power Supply19 10.2.4 Shield Termination19

6HWXS *XLGHOLQHV 10.3.1 Mounting the Interface Module19 10.3.2 Wiring20 10.3.3 Cabling, Shielding and Measures against Interference Voltage25

Page 6Release: 1.58VHU ’HVFULSWLRQ 10/99Copyright (C) Siemens AG 1999. All rights reserved.

3DUDPHWHUL]DWLRQ 1.1.1 Layout of the Parameterization Telegram (from Octet 8)29

12.1.1 Device Data35 12.1.2 Interface Data37

8VHU ’HVFULSWLRQRelease: 1.5Page 7 Copyright (C) Siemens AG 199. All rights reserved.10/9

(8 JXLGHOLQHVThe following information applies to the interface described in this manual.

Products bearing the CE seal meet the requirements of EU guidelines 89/336/EEC on electromagnetic compatibility and the harmonized European standards contained therein.

The EU declarations of conformity are available at the following address for viewing by responsible authorities in accordance with article 10 of the above stated EU guidelines.

Siemens Aktiengesellschaft Bereich Antriebs-, Schalt- und Installationstechnik ASI 2 Postfach 1954 D-92220 Amberg

$SSOLFDWLRQ DUHDThe interface modules are designed for use in industrial applications and meet the following requirements.

IndustryEN 50081-2 : 1993EN 50082-2 : 1995

When individual approval is granted, the interface module can also be used in residential areas (e.g., residential, business and commercial zones and small businesses).

Residential areasIndividual approvalEN 50082-1 : 1992

Individual approval must be obtained from an appropriate authority or inspection office. In Germany, this document can be obtained from the Bundesamt für Post und Telekommunikation and its branches.

$GKHUHQFH WRThe interface module complies with the requirements when the following VHWXS JXLGHOLQHVguidelines are adhered to.

1.Setup guidelines for installation and operating contained in the operating instructions 2.The following rules covering the installation of the device and work on switching cabinets

,QVWDOODWLRQInterface modules must be installed in electrical equipment rooms or in closed housings (e.g., control boxes of metal or plastic). In addition, the device and the metal control box or at least the top hat rail (plastic box) snapped onto the interface must be grounded.

:RUN RQ VZLWFKLQJTo protect the modules from discharge of static electricity, personnel must

FDELQHWVdischarge themselves electrostatically before opening the switching cabinets or control boxes.

Page 8Release: 1.58VHU ’HVFULSWLRQ 10/99Copyright (C) Siemens AG 1999. All rights reserved.

,QWURGXFWLRQSince the DP/RS232 interface is not a machine in the sense of the EU guidelines, it does not require a declaration of conformity in accordance with EU guideline 89/392/EEC on machines.

((&EU guideline 89/392/EEC on machines covers the requirements for machines. A machine is defined as an entity of connected parts or devices. See also paragraph 3.1 of EN 292-1.

Since the interface is part of the electrical equipment of a machine, the manufacturer of the machine must include it in the declaration of conformity procedure.

8VHU ’HVFULSWLRQRelease: 1.5Page 9 Copyright (C) Siemens AG 199. All rights reserved.10/9

The DP/RS232 interface is used to adapt a serial interface on PROFIBUS-DP in accordance with EN 50 170. In this application, it is used as a gateway and operates as a PROFIBUS-DP slave. It can be operated by any standard master. Two transmission procedures are supported by the serial interface.

• The 3964R procedure widely used by Siemens devices • A free ASCII protocol with control over Character delay time, Start / End delimiter or constant data length

These two procedures cover the great majority of applications. The interface consists of the following primary hardware components.

• Floating RS 485 interface to PROFIBUS DP • SPC3 PROFIBUS ASIC

• 80 C 32 micro-processor

• RAM and EPROM

• Serial interface to the externally connected device

Device Interface

Address

Configuring with COM PROFIBUS

DP/RS 232 C Linkx10x1

Process serial procedure

Page 10Release: 1.58VHU ’HVFULSWLRQ 10/99Copyright (C) Siemens AG 1999. All rights reserved.

The PROFIBUS master sends the output data cyclically to the gateway. The gateway compares the data received from the master with the previous telegram. When changes are detected, the gateway sends the data to the external device in accordance with the selected procedure. When no changes are detected, the telegram is not sent to the external device (i.e., each telegram is only sent once to the external device). The external device responds in accordance with procedure conventions. The gateway always sends the data received from the external device to the master without changes. The gateway writes the data received from the external device in the internal RAM of the SPC3. The updated data are transferred during the next polling cycle with the gateway.

Construction of data:

(Parte 1 de 10)

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