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background image

NETLink

®

Switch

57

10

Troubleshooting

The points described here show some typical errors that can occur
in day-to-day work with the NETLink

®

Switch.

If any condition during operation is not described here and this
manual does not provide any information on how to remedy it,
the support of Systeme Helmholz GmbH is available to help you.

Q:

I don’t know the IP address of my computer.

A:

Enter the command ‘

ipconfig

’ after the prompt to show the

configuration of the Ethernet interfaces of your computer.

Q:

My computer has a firewall. Which ports must I release?

A:

The NETLink-S7-NET driver communicates with the NETLink

®

Switch

via TCP port 7777.

UDP ports 25342 and 25343 are also used to search for the NET-
Link

®

Switch devices.

Please release at least port 7777 so that the basic functionality of
the driver is available.
If you use the RFC1006 functionality (also known as S7-TCP/IP),
port 102 must also be released.
ATTENTION: If you want to use the driver option ‘

Internet teleser-

vice

’ (see Section 5.2.1), the specific ports configured there must

also be released because this port will be used instead port 7777.

Q:

Both the configuration tool and the web interface ask me for a

password and a user name. But I have never assigned a user name
or password.

A:

If no user name and/or password were/are specified, the de-

fault user name

‘NETLink Switch’

and the default password ‘

admin

’

are applied.

Q:

Once the configured PROFIBUS slaves have been added on my

CPU, communication between NETLink

®

Switch and STEP7 be-

comes markedly slower.

A:

The user can influence the allocation of

‘cycle load due to com-

munication [%]’

under object properties of the CPU in the hard-

ware configuration. The default value is 20 %.

Q:

I get an error message when I access the controller.

i

The default user name is
“NETLink Switch”

The default password
is ‘admin.’

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Содержание 700-883-PRO42

Страница 1: ...ach z Germany Phone 49 9135 7380 0 z Fax 49 9135 7380 110 z E Mail info helmholz de z Internet www helmholz de Ethernet Gateway for MPI PPI PROFIBUS 700 883 PRO42 User Manual Edition 2 29 03 2010 HW 1 1 FW 2 30 and higher Order number of manual 900 883 PRO42 en ...

Страница 2: ......

Страница 3: ...eg 2 91091 Grossenseebach Germany Note We have checked the content of this manual for conformity with the hardware and software described Nevertheless because devia tions cannot be ruled out we cannot accept any liability for com plete conformity The information in this manual is regularly up dated When using purchased products please heed the latest ver sion of the manual which can be viewed in t...

Страница 4: ...Revision history of this document Edition Date Revision 1 18 08 2009 First Edition 2 29 03 2010 Change cross cable in the scope of supply new Web Interface fea tures added ...

Страница 5: ... displays and Connectors 12 3 4 Items supplied 13 3 5 Accessories 13 3 5 1 Manuals 13 3 5 2 Software 13 3 5 3 Other accessories 13 3 5 4 PROFIBUS accessories 14 4 Installation of the driver software 15 4 1 Introduction 15 4 2 System requirements 15 4 3 Running the installation setup 15 4 3 1 Adding the interface to the PG PC interface 16 4 3 2 Selecting the required interface parameterization 17 5...

Страница 6: ...3 7 2 Status page 34 7 3 Configuration page 38 7 4 Security page 41 7 5 Observing variables 43 8 RFC1006 Function S7 TCP IP 46 9 Bus Parameters in Single Master Operation 47 9 1 Storing specified bus parameters 47 9 2 Addressing rack slot mode ON OFF 48 9 2 1 Addressed mode 49 9 2 2 Rack slot mode 49 9 3 Example of configuration for WinCC V7 0 50 9 3 1 Using addressed mode 50 9 3 2 Use of rack slo...

Страница 7: ...NETLink Switch 7 11 2 4 Power supply socket 63 11 3 Further Documentation 63 11 4 Information in the internet 63 11 5 Address conversion table 64 12 Glossary 65 ...

Страница 8: ...ety and accident prevention regulations applicable to the applica tion in question During configuration safety and accident prevention rules spe cific to the application must be observed Emergency OFF facilities according to EN 60204 IEC 204 must remain active in all modes of the machine system The system must not enter an undefined restart Faults occurring in the machine system that can cause dam...

Страница 9: ...7 400 programmable controller from Siemens NETLink Switch is for use within a complete system only For that reason the configuring engineer user and installing technician must observe the standards safety and accident prevention rules applicable in the particular application The operator of the auto mation system is responsible for observing these rules 1 4 Use as intended NETLink Switch must only...

Страница 10: ...ng standard commercial type accessories For NETLink Switch a minimum clearance of 30 mm should be left above and below and 10 mm at the sides 2 3 Installing the module NETLink Switch is intended to be mounted on a DIN rail bracket It can be snapped into place by simply attaching it to the DIN rail bracket In order to do so you hook NETLink Switch into the rail bracket at the upper groove of the DI...

Страница 11: ...or use without a new initializa tion of the 4 ports On both the TCP and the field bus sides the baud rate used can be determined automatically auto negotiation or autobaud NETLink Switch needs to get 24 VDC power via the power sup plies at the lower left side of the case The connecting cable used to link NETLink Switch with the pro grammable controller is to be connected to the front of NETLink Sw...

Страница 12: ...ne in order to avoid bus faults 3 3 LED displays and Connectors NETLink Switch has three LEDs including two two color LEDs to indicate its operating status The two LEDs located on the four RJ45 sockets indicate by their status the state of the LAN that is connected to the respective port LINK LED green ACTIVE LED yellow Status Description Status Description OFF Not connected OFF No activity on the...

Страница 13: ...h NETLink S7 NET driver additional info s Manual German English 3 5 Accessories 3 5 1 Manuals Manual German 900 883 PRO42 de Manual English 900 883 PRO42 en 3 5 2 Software S7 S5 OPC server with USB dongle 800 880 OPC20 3 5 3 Other accessories Power supply adapter with plug 700 751 SNT01 Input 100 240 V AC 47 63 Hz 400 mA Output 24 V DC 625 mA Active PROFIBUS plug cable 3m 700 901 4BD00 i The NETLi...

Страница 14: ...cs without PG for flexible cables 700 972 7FA50 EasyConnect PROFIBUS plug with diagnostics and PG for flexible cables 700 972 7FB50 Bus connection plug for PROFIBUS 90 without PG 700 972 0BA12 Bus connection plug for PROFIBUS 90 with PG 700 972 0BB12 Bus connection plug for PROFIBUS 35 without PG 700 972 0BA41 Bus connection plug for PROFIBUS 35 with PG 700 972 0BB41 Bus connection plug for PROFIB...

Страница 15: ... Systeme Helmholz GmbH Please pay attention to the require ments of the Simatic package used A functioning network link using TCP IP must have been set up on the PCs that are used The network configuration of the PC must be known Commercially network cards and for the con nection cross over or 1 1 straight cables may be used The integrated auto negotiation function automatically negotiates the TCP...

Страница 16: ...T Link S7 NET has to be set up Administrator rights are necessary for this After you have started Set PG PC Interface in the Control Panel click the Select button there This opens the Install uninstall interface dialog box After you have selected the entry NETLink S7 NET PRO family from the left hand list click the Install button ...

Страница 17: ...3 2 Selecting the required interface parameterization The selection list for the interface parameter sets now contains an additional three items for NETLink PRO Family All relevant settings of a NETLink S7 NET driver can be made via the Properties access field With the button Diagnostics it is possible to show the nodes connected to the bus and the parame ters the bus is working with These fields ...

Страница 18: ...ange the language of the NETLink S7 NET driver and to read out the version information of the driver Section 5 3 Two functionalities are implemented for diagnostics at the con nected bus Bus members a list of all active and passive nodes connected to the bus will be displayed By request the order numbers MLFBs will be displayed also if this functionality is available by the nodes Section 5 4 1 Bus...

Страница 19: ... is lower than or equal to the highest station ad dress HSA Example HSA 31 Any value between 0 and 31 can be specified for the station ad dress if this address does not yet exist on the bus The local timeout of the NETLink S7 NET driver can be param eterized in the station related settings If the driver does not re ceive a response to a request within the set timeout a communi cation error is sign...

Страница 20: ...gularly by the CPUs In such cases it may be advantageous to assign the bus pa rameters manually 5 1 2 PROFIBUS configuration Basically the same applies to PROFIBUS configuration as to MPI configuration However the network related parameters are more extensive In addition to the parameters transmission rate and highest sta tion address mentioned in Section 5 1 1 PROFIBUS also has pa rameter field f...

Страница 21: ...y used in the pro grammable controller Bus parameters Unlike the MPI bus profile the bus parameters for PROFIBUS are not constant and change with the type and number of PROFIBUS stations used Always set the PROFIBUS parameters that are set in the cur rently used programmable controller see current STEP7 pro ject In order to simplify these procedures it makes sense to use of the auto baud function ...

Страница 22: ...t the auto baud function works best if the Cyclic distribution of the bus parameters function is acti vated in the programmable controller used The screenshot above of a hardware configuration of a randomly chosen PROFIBUS CPU shows where to find the switch for cyclic distribution of the bus parameters ...

Страница 23: ...possible 5 2 Local connection TCP parameterization There are three basic ways of parameterizing NETLink Switch at the TCP end Parameterization via Set PG PC interface Existing stations can be reparameterized using the Change button Parameterization via the NETLink PRO Family configuration tool see Section 6 Parameterization via the web interface of the NETLink Switch see Section 7 3 If the NETLink...

Страница 24: ...known IP address of an existing NETLink Switch and any name for easier assignment To able to access a NETLink Switch with the NETLink S7 NET driver a station must be set up first This station is virtually and is not stored in the NETLink Switch hardware it permits easier differentiation if several NETLink Switch and or other devices from the NETLink family are used Is the desired NETLink Switch be...

Страница 25: ...be deselected OK stores this station which can now be used It is easier to search for an existing NETLink Switch in the local area network Just click the Search NETLink PRO Family button If you now select the required NETLink Switch and click the Close Get button the following dialog box will appear again This station can also be saved with OK and is then available If you do not want the name that...

Страница 26: ...the driver It may now be necessary to adapt the NETLink Switch to the situation in the existing TCP IP network 5 2 2 Setting TCP parameters To change the TCP parameters select the station in question and open the following dialog box with the Edit button ...

Страница 27: ...ch e g different subnet mask settings From the parameterization form shown it can be seen that not only static IP address allocation but also IP parameter assignment via DHCP is possible Both these options are now explained in more detail 5 2 3 Operation without the DHCP If NETLink Switch is used in a network without a DHCP server or you want the NETLink Switch to work with the same IP ad dress on...

Страница 28: ...ystem administrator responsible for the DHCP server can counter this informing the DHCP server of the MAC address of the NETLink Switch However this is additional work for the sys tem administrator 5 2 5 Additional features The NETLink PRO Family properties input form contains a Net Link PRO Family properties group box with further options that are explained here Name Here a name can be given to t...

Страница 29: ...xts of the driver It is also possible to read out the version numbers of the driver files used 5 3 1 Language setting of the display elements The languages German and English are currently available After switching over the language the setting window must be opened again to apply the changes 5 3 2 Version information The names and version number of all driver files are listed here If support is n...

Страница 30: ...rated by clicking the button Read With activating the option Read MLFB number the order numbers of all devices supporting this function will be displayed too The possibility to detect all connected nodes depends on the parameterization of the PG PC Interface It is recommended to enable auto baud functionality at MPI and PROFIBUS 5 4 2 Bus parameters If it is possible a list of all bus parameters w...

Страница 31: ...dministrator required Disadvantage Few globally available addresses exist A separate network with direct WAN access is required Security Use behind a router by means of NAT PAT Advantage Can be integrated into existing infrastructures Administrator can ensure that it is not visible usable from outside Disadvantage Network administrators must parameterize routers and firewalls between the communica...

Страница 32: ...dresses The scan can be repeated at any time by pressing the Scan but ton again Having chosen any NETLink adapter out of the pro vided list it is possible to configure the device after clicking Pa rametrize as described in Section 5 An extended function enables direct parameterization across net work boundaries To do this activate the radio button and enter the known IP address of the NETLink the ...

Страница 33: ...n tasks 7 1 Home page The home page which is located at http ip address is a basic address and navigation starting point for the user From this page you can go to the status page to the Basic Con figuration page to the security page and if the computer is con nected to the Internet to the web site of Systeme Helmholz GmbH The page also shows the contact data such as postal address phone and fax nu...

Страница 34: ...mation without allowing unauthorized recon figuration of the NETLink Switch The page provides general information e g firmware version number of possible connections etc and specific information baud rate active stations DHCP status etc A Diagnostic Page is also implemented which can be useful for troubleshooting for ...

Страница 35: ... the Diagnostic Page button is pressed if the bus system is correctly connected a list of the currently most important com munications parameters will be shown For a better overview the table can be emptied with the Clear List function before a new list is requested Because the NETLink Switch is also active as a single master it is also possible to search for passive stations only The search is st...

Страница 36: ...NETLink Switch 36 The result is entered in line List of passive stations ...

Страница 37: ...ssive stations After a search request by a user a list of passive stations is output here Currently used connec tions If the NETLink Switch has opened at least one bus connection the exact count of open connections will be displayed TCP specific parameters IP Address The currently used IP address of the NETLink Switch is shown e g 192 168 4 44 Subnet Mask The currently used subnet mask of the NETL...

Страница 38: ... NETLink Switch has opened at least one TCP or RFC1006 the exact count of open connections will be displayed here maximum value shown in brackets 7 3 Configuration page The configuration page accessible via a link on the home page is a configuration interface for the user Before this page is opened the user name default NETLink Switch if no user defined user name is entered and the password admin ...

Страница 39: ...NETLink Switch 39 As soon as you have answered the security query you will have write access to all parameters ...

Страница 40: ... need to go online immediately is largely only relevant when CPU to CPU communication is used NETLink MPI PB Address This is where the address with which the NETLink Switch will participate in the bus cycle is entered Any address assigned at another location e g by the SHS7 Net driver is then ignored Single Master bus parame ters The bus parameters specified here are used if the single master func...

Страница 41: ...tablished with the NETLink Switch only from stations that have addresses configured in the table TCP address 1 to TCP address 12 white list The IP addresses must be entered in the four octet pattern e g 192 168 4 36 To clear or reset the TCP address setting OFF must be entered TCP IP addresses that are not in the white list have read only ac cess to the web interface MPI PPI or PROFIBUS functional...

Страница 42: ...ns will be deleted by this function If you click the Submit button the inputs are checked for plausi bility You may then be shown which inputs are incorrect and what correct input would look like at this point If all entries are consistent the changes are displayed again as they will now be stored non volatile in the NETLink Switch when you click the Store button again ...

Страница 43: ...tion PLC write protection ON or OFF NETLink Switch can be started both locally and remotely via the security interface This is done by clicking the Device Reboot but ton 7 5 Observing variables In addition to the Observing Variables function in the Simatic engineering tools NETLink Switch also provides this function via the web interface Setting parameters of the observe variables function MPI add...

Страница 44: ...nel is assigned for these functions To display the desired values you can use the 1x fetch button for a single value update or cyclic fetch for a permanent online query With Save Configuration it is possible to store the screen form you have created with all the variables and their descriptions in the NETLink Switch ...

Страница 45: ... Even if multiple stations access this function from the TCP IP end only one connection resource is ever assigned in the NET Link Switch Moreover data exchange via MPI PB and or RFC 1006 the Observe Variables action has the lowest priority The update time in the Web interface therefore depends on the con current bus load ...

Страница 46: ...lity of the NETLink Switch is also sup ported by S7 200 systems The following software packages with RFC1006 support have so far been tested in conjunction with the NETLink products WinCC V6 0 V7 0 Siemens AG WinCC flexible 2005 2007 2008 Siemens AG ZenOn V6 2 COPA DATA PROCON Win V3 2 GTI Control S7 OPC Server V3 1 and higher Systeme Helmholz GmbH AGLink V4 0 DELTALOGIC Automatisierungstechnik Gm...

Страница 47: ... PROFIBUS are interdependent That is if a parameter e g the baud rate is changed all the other parameters usually also change For MPI on the other hand all parameters besides the baud rate are fixed That is if an MPI connection of increased from say from 187 5 Kbps to 12000 Kbps all other parameters can must remain unchanged The following parameters must be taken into account Baud rate The require...

Страница 48: ...note that under unfavorable circumstances an incorrectly parameterized NETLink Switch can interfere with the bus to the extent that regular bus operation is no longer possible 9 2 Addressing rack slot mode ON OFF RFC1006 connections are virtual point to point links that is links from the PC to the programmable controller possible branching within the programmable controller is handled by the CPU R...

Страница 49: ...o communicate with destination address 49 on the other hand the following has to be set Rack 1 Slot 17 Section 11 5 contains a table were you can read off already con verted values for the rack and slot There are also parameterization tools that do not provide fields with names like rack and slot These tools normally have a parameterization field with a name such as Remote TSAP that is usually two...

Страница 50: ...tem Section 9 3 1 explains addressed mode using WinCC as an exam ple 9 3 Example of configuration for WinCC V7 0 The basic parameterization of RFC1006 connections in visualiza tion systems is explained here using the example of the WinCC V7 0 tool from Siemens AG It is assumed you are familiar with the development environment of WinCC so that only points relating specifically to the connec tion ne...

Страница 51: ... In this case the NETLink Switch has the IP address 192 168 4 49 The destination CPU with which we want to communicate has the PROFIBUS address 49 Because addressed mode is to be used we can read off the correct value for the rack and slot from the table in Section 11 5 Under this connection we have just configured we now have to create a variable i The NETLink PRO Com pact has the IP address 192 ...

Страница 52: ...n the context menu of the new connection and selecting New variable In the properties window of the variable which was named MB0_over_NETLink in this case we can now select the type of variable by clicking the Select button Marker byte 0 is configured here ...

Страница 53: ...or write marker byte 0 from this address Further variables of different types can of course be created and used according to the same scheme It is also possible to create additional TCP IP connections in order to communicate not only with the CPU with bus address 49 but also with other CPUs 9 3 2 Use of rack slot mode For the basics of rack slot mode at the NETLink Switch end see Section 9 2 2 To ...

Страница 54: ...municate is in Rack 0 on Slot Because rack slot mode we are going to use WinCC does not have to announce the CPU address Instead the real values for rack and slot are specified in this case rack 0 and slot 2 Please note that the destination address 49 in this case must now be announced to the NETLink Switch via the Web interface Under this connection we have just configured we now have to create a...

Страница 55: ...n the context menu of the new connection and selecting New variable In the properties window of the variable which was named MB0_over_NETLink in this case we can now select the type of variable by clicking the Select button Marker byte 0 is configured here ...

Страница 56: ...ill be established to the CPU with address 49 via the NETLink Switch to read or write marker byte 0 from this rack 0 slot 2 Further variables of different types can of course be created and used according to the same scheme It is also possible to create additional TCP IP connections in order to communicate not only with rack 0 slot 2 for example but also with rack 0 slot3 However all the communica...

Страница 57: ... available If you use the RFC1006 functionality also known as S7 TCP IP port 102 must also be released ATTENTION If you want to use the driver option Internet teleser vice see Section 5 2 1 the specific ports configured there must also be released because this port will be used instead port 7777 Q Both the configuration tool and the web interface ask me for a password and a user name But I have ne...

Страница 58: ... Failure monitoring from 20ms to 200ms and the Application monitoring from 2000ms to 5000ms so that the Starter software remains operable Q Every time I execute a certain function it fails and the red LED flashes A An exception has occurred in communication Please contact support and describe how the error can be triggered The support team will attempt to solve the problem as quickly as possible Q...

Страница 59: ...ack and 2 for slot Many visualization system manufacturers have grouped together the two fields In that case there may be a field with the name Remote TSAP containing a hex value such as 0102 In this case the hex value 02 stands for rack 0 and slot 2 Q I would like to use addressed mode of the RFC1006 interface rack slot mode OFF because that way I can access several CPUs on the same bus Unfortuna...

Страница 60: ... parameterize the communication resources The user can influence the allocation of existing connection re sources under object properties of the CPU in the hardware con figuration Q When the adapter is plugged onto the PROFIBUS no online connection is possible A If possible use the auto baud functionality If this is not possible or not desired check the timing parameters for the PROFIBUS in the ST...

Страница 61: ...the router can be set This configuration can be made in the Station dialog box There is a detailed description of the settings for a station in Sec tion 5 1 2 For explanations see the figure above Private NETLink address Æ Public NETLink address NETLink 1 192 168 1 81 Port 7777 Æ 222 111 1 1 Port 1234 NETLink 2 192 168 1 82 Port 7777 Æ 222 111 1 1 Port 1235 Q What must I observe when calling your ...

Страница 62: ...LEDs incl 2 two color for general status information 2 LEDs on the 4 Ethernetports for Ethernet status Degree of protection IP 20 Ambient temperature 0 C 75 C Storage and transportation tem perature 25 C to 75 C Relative humidity during operation 5 to 85 at 30 C no condensation Relative humidity during storage 5 to 93 at 40 C no condensation 11 2 Pin assignments 11 2 1 MPI PROFIBUS interface pin a...

Страница 63: ...ss storage 1000 MAC addresses LED s Link activity and speed 11 2 4 Power supply socket Please make sure that the polarity is correct and all technical data are complied with 11 3 Further Documentation In addition to this manual the accompanying CD includes addi tional documentation and example projects for your free use You will always find further information or new and revised versions at www he...

Страница 64: ...3 11 026B 12 0 12 020C 44 1 12 022C 76 2 12 024C 108 3 12 026C 13 0 13 020D 45 1 13 022D 77 2 13 024D 109 3 13 026D 14 0 14 020E 46 1 14 022E 78 2 14 024E 110 3 14 026E 15 0 15 020F 47 1 15 022F 79 2 15 024F 111 3 15 026F 16 0 16 0210 48 1 16 0230 80 2 16 0250 112 3 16 0270 17 0 17 0211 49 1 17 0231 81 2 17 0251 113 3 17 0271 18 0 18 0212 50 1 18 0232 82 2 18 0252 114 3 18 0272 19 0 19 0213 51 1 1...

Страница 65: ...ms for electronic components For example the MPI Bus is a connection medium for S7 Byte A byte denotes a series of 8 bits that constitute a logical data entity CAT5 TCP cable Category 5 Ethernet cable that supports a data rate of 100 Mbps over a dis tance of 100 m Client A device that requests services The requests are sent to a server which re turns the relevant answers to the client Computer In ...

Страница 66: ...ossover Makes it possible to identify if a cross over or a straight cable is connected and configures the port accordingly MLFB 16 digit Siemens identification number MPI Multipoint Interface Interface that is used for S7 300 and S7 400 systems and that supports baud rates up to 1 5 Mbps NAT Network Address Translation is the collective term for procedures for re placing address information in dat...

Страница 67: ...at is based on TCP IP and that is handled via the selected network interface card of the PC SCADA Supervisory Control and Data Acquisition Generic term for a type of proc ess visualization that includes monitoring control and data acquisition of automation systems etc Server A device that provides special services at the request of clients Single master Only one master is connected to the system T...

Страница 68: ...transmit its own telegrams to the slaves UDP User Datagram Protocol transport protocol permitting data exchange be tween network devices It is a connectionless protocol that is data trans mission is performed without error detection URL Uniform Resource Locator denotes the address at which a service can be found in the Web browser In this manual the IP address of the NETLink Switch is usually ente...

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