Siemens CP 342-5 User manual

Contents, Product Notes
CP 342-5/342-5 FO Communica-
tions Processor 1
Compatibility – Replacing older
Modules 2
How to Install the Module 3
Technical Data 4
Notes on the CE Mark on
SIMATIC NET Products 5
References 6
Manual
CP 342–5 6GK7 342-5DA02-0XE0
version 1 or higher (firmware V4.0.0)
CP 342–5 FO 6GK7 342-5DF00-0XE0
version 1 or higher (firmware V4.0.0)
06/2000
C79000–G8976–C146
Release 01
SIMATIC NET

Safety Guidelines
This manual contains notices which you should observe to ensure your own personal safety, as well as to
protecttheproductandconnectedequipment.Thesenoticesarehighlightedinthemanualbyawarning
triangle and are marked as follows according to the level of danger:
!Danger
indicatesthatdeath,severepersonalinjuryorsubstantialpropertydamagewillresultifproperprecautions
arenottaken.
!Warning
indicatesthatdeath, severe personal injury or substantial propertydamagecan result if proper precau-
tions are not taken.
!Caution
indicatesthat minor personal injury orproperty damage can result if proper precautions are not taken.
Note
drawsyourattentiontoparticularlyimportantinformationonthe product, handling the
product,orto a particular part of the documentation.
Qualified Personnel
Only qualifiedpersonnel should be allowed to install and work on this equipment. Qualified persons are
defined as persons who are authorized to commission, to ground, and to tag circuits, equipment, and sy-
stemsin accordance with establishedsafety practices and standards.
Correct Usage
Notethefollowing
!Warning
This device and its components may only be used for the applications described in the catalog or the
technicaldescription,andonlyinconnection with devices or components from other manufacturers which
havebeen approvedorrecommended by Siemens.
This product can only function correctly and safely if it is transported, stored, set up, and installed
correctly,andoperatedandmaintainedasrecommended.
Trademarks SIMATICR, SIMATIC HMIRand SIMATIC NETRare registered trademarks of the SIEMENS AG.
Third parties using for their own purpose any other names in this document which refer to trademarks
mightinfringeupontherightsofthetrademarkowners.
Wehavecheckedthecontentsofthismanualforagreementwiththe
hardware and software described. Since deviations cannot be
precludedentirely, we cannot guarantee full agreement. However,
the data in this manual are reviewed regularly and any necessary
corrections included in subsequent editions. Suggestions for
improvementarewelcomed.
Technicaldata subject to change.
ESiemensAG2000
DisclaimerofLiabilityCopyrightESiemensAG 2000 All rights reserved
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
createdbypatentgrantorregistrationofautilitymodelordesign,are
reserved.
Siemens AG
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Postfach4848, D-90327Nürnberg
SiemensAktiengesellschaft C79000-G8976-C146/01

ManualCP 342–5 / CP 342–5 FO
C79000–G8976–C146/01 3
Contents
Product Notes 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 CP 342-5/342-5 FO Communications Processor 5. . . . . . . . . .
1.1 Characteristics 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Performance 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.1 Transmission Rates 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.2 Basic Data of the DP Interface/DP Master 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.3 Basic Data of the DP Interface / DP Slave 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.4 Data for S5-Compatible Communication (SEND/RECEIVE interface)
on FDL Connections: 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.5 Basic Data for S7 Communication 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.6 Using Parallel Communications Services (Multiprotocol Operation) 12. . . . . . . .
1.3 Displays and Mode Selector 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Compatibility – Replacing older Modules 16. . . . . . . . . . . . . . . .
3 How to Install the Module 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Technical Data 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Notes on the CE Mark on SIMATIC NET Products 24. . . . . . . . .
6 References 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Product Notes
4ManualCP 342–5 / CP 342–5 FO
C79000–G8976–C146/01
Product Notes
Note
All the information in the product information bulletin accompanying the device
described here is up to date and valid and must be read thoroughly.
Compatibility with the Previous Version
The CP 342–5 described here can be used to replace the following CPs
–CP 342–5 6GK7 342–5DA00–0XE0
–CP 342–5 6GK7 342–5DA01–0XE0
The CP 342–5 FO and CP 342–5 are compatible in terms of function.
Note
Please note the extended functions and restrictions as described in Chapter 2
of this manual!

ManualCP 342–5 / CP 342–5 FO
C79000–G8976–C146/01 5
1 CP 342-5/342-5 FO Communications Processor
Application
The CP 342-5/342-5 FO communications processor is intended for operation in a
programmable controller of the SIMATIC S7-300 series. It allows the S7-300 to be
connected to a PROFIBUS fieldbus system.
Design
Mode selector
Status and error
displays
Connection for power supply
and functional ground
(9-pin sub-D female
connector)
CP 342-5 CP 342-5 FO
(Duplex sockets for optical
connection)
Figure1 Front View of the CPs 342-5 / 342-5 FO
Configuration
Configuration is possible via MPI or LAN/PROFIBUS.

6ManualCP 342–5 / CP 342–5 FO
C79000–G8976–C146/01
1.1 Characteristics
Services
The current version of the CP 342-5/342-5 FO supports the following
communication services:
SPROFIBUS-DP
–as DP master class 1 and class 2 (PROFIBUS-DP complying with EN
50170, DP Master)
–as DP slave (PROFIBUS DP complying with EN 50170, DP Slave)
Note
Note however, that the CP 342-5/342-5 FO can only be operated as DP master or
DP slave but not both. The DP mode can also be completely deselected.
SS5-compatible communication (SEND/RECEIVE interface) on FDL connections
of the following types:
–Specified FDL connections
–Free layer 2 connections (SDA, SDN)
– Broadcast
– Multicast
SS7 communication and PG/OP communication
–PG functions (including routing)
–Operator control and monitoring functions (HMI)
–Server for data exchange using communication FBs
The services of the CP 342-5/342-5 FO listed here can all be used at the same
time independent of each other.
PG Functions with
Supload / download of FM modules
SConfiguration / diagnostics
SRouting

ManualCP 342–5 / CP 342–5 FO
C79000–G8976–C146/01 7
Module Replacement without PG
The CP supports the option of storing the CP configuration data on the CPU. If you
use this option, you can replace a module without having to download the
configuration data from the programming device.
The configuration data are then stored in the load memory of the CPU. The
non-volatile storage of the configuration data on the CPU is guaranteed by battery
backup or by using an EPROM module card.
Configuration
For configuration, you require STEP 7, version V5.1 or higher; for FDL connections
and diagnostic functions, you require the NCM S7 for PROFIBUS optional package
supplied with STEP 7.
Note
If you modify the bus parameters in the configuration data, you can only download
the configuration data to the CP via MPI!

8ManualCP 342–5 / CP 342–5 FO
C79000–G8976–C146/01
1.2 Performance
1.2.1 Transmission Rates
The transmission rate is set with the SIMATIC STEP 7 configuration software. The
following values are permitted:
Table 1-1
Transmission rate CP 342-5 CP 342-5 FO
9.6 Kbps
19.2 Kbps
45.45 Kbps
93.75 Kbps
187.5 Kbps
500 Kbps
1.5 Mbps
3 Mbps
6 Mbps
12 Mbps
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
–
–
n
1.2.2 Basic Data of the DP Interface/DP Master
General Data
The following data are important if you want to operate the CP 342-5/342-5 FO as
a DP master:
Table 1-2
Feature Explanation / Values
Number of DP slaves that can be operated 124 maximum
Size of the DP data areas (total):
–DP input area
–DP output area 2160 bytes maximum 2160 bytes maximum
Size of the DP data areas (per DP slave):
–DP input area
–DP output area 244 bytes maximum 244 bytes maximum
Size of the DP diagnostic data: 240 bytes per DP slave

ManualCP 342–5 / CP 342–5 FO
C79000–G8976–C146/01 9
Extended Master Functions
The CP 342-5/342-5 FO supports the following:
SSYNC/FREEZE (acyclic)
SShared input/output (acyclic)
SActivating/deactivating DP slaves
SModifications during runtime
–own PROFIBUS address
–DP mode (no DP, DP master, DP slave active/passive)
SHardware interrupts / diagnostic interrupts
Hardware and diagnostic interrupts do not need to be evaluated in the user
program. Hardware and diagnostic interrupts are acknowledged automatically
by the CP.
You can use single diagnostics to obtain interrupt information.
Reaction Times of a DP Master
To calculate the reaction times when operating the module as a DP master, the
runtime of the function blocks required for DP processing in the S7-300 CPU
(DP_SEND, DP_RECV) is the decisive factor.
Table 1-3
Components Explanation / Values (Guidelines)
Runtime on the CPU 314-1
(6ES7 314–1AE04–0AB0) Per DP_SEND block call:
S0,2 – 3,4 ms at 16 bytes
S0,2 – 5,9 ms at 240 bytes 1)
Per DP_RECV block call:
S0,3 – 3,5 ms at 16 bytes
S0,3 – 6,9 ms at 240 bytes 1)
1) At data lengths > 240 bytes: The data is transferred segmented. This then involves several block calls.
Note
The reaction times listed above are only intended as a guideline and only apply to
a single-master configuration when no other services (for example PG functions)
are processed on the CP.

10 ManualCP 342–5 / CP 342–5 FO
C79000–G8976–C146/01
1.2.3 Basic Data of the DP Interface / DP Slave
The following characteristics are important for successful data transfer to a DP
slave:
Table 1-4
Feature Explanation / Values
Device database file (*.GSD) File name:
CP 342-5: SIEM8093.GSD
CP 342-5 FO: SIEM8095.GSD
You can obtain device database files as follows:
SBy modem from the mailbox in the Interface Center, Fürth
Tel. [phone] (from outside Germany [phone]
SOn the Internet
http.\\www.ad.siemens.de under “Support, Training and
Service...Customer Support, Downloads”
Vendor ID CP 342-5: 8093H
CP 342-5 FO: 8095H
Size of the DP data areas:
–DP input area
–DP output area 240 bytes maximum 240 bytes maximum
Min. slave interval 2 ms
SYNC / FREEZE not supported
User parameter assignment data 3 bytes; value: 00 00 00 (fixed)
User diagnostic data 0 bytes
Reaction Times of a DP Slave
To calculate the reaction times when operating the module as a DP slave, the
runtime of the function blocks required for DP processing in the S7-300 CPU
(DP_SEND, DP_RECV) is the decisive factor.
Table 1-5
Components Explanation / Values
Runtime on the CPU 314-1
(6ES7 314–1AE04–0AB0) Per DP_SEND block:
S0,3 – 3,2 ms at 16 bytes
S0,2 – 5,7 ms at 240 bytes
Per DP_RECV block:
S0,3 – 3,5 ms at 16 bytes
S0,3 – 6,4 ms at 240 bytes