Siemens S7 appendix Unspecified Connections, By any partner via specific Tsap Empty

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Configuring Communication Connections

In both projects, the same connection name must be configured in the properties of the connection. The connection name is used as a textual reference when the projects are merged. Based on the connection name it is possible to assign the connection partner and synchronize the connection properties.

Before the projects are merged, such connections are ”unspecified connections” in terms of addressing; in other words, the partner addresses remain empty.

Unspecified Connections

Connections to an as yet unknown device (for example a diagnostic unit) are configured as “unspecified” connections. They can be specified later in the Properties dialog.

You can create an unspecified connection simply by selecting station “unspecified” for the connection partner when you create the connection. The unspecified connection can be used in two ways (explained below based on the example of an ISO-on-TCP connection (ISO transport and TCP connections are analogous):

SDeclare readiness for communication – passive connection establishment

The connection establishment is then set to passive (see settings in the General tab).

The address setting for the ISO-on-TCP connection is then as follows: The remote IP address is 0.0.0.0 and the remote TSAP is empty; in other words, they are not relevant for the CP. When the connection is established, any partner is accepted (partner = connection name that addresses the CP with the correct IP address and TSAP).

It is also possible to use a partial specification; in other words, communication is permitted with any partner that matches the specified TSAP.

SConnection to a specific station in any project

The address setting for the ISO-on-TCP connection is then as follows:

You can specify the remote IP address and the port of any destination station. The destination station can be in the current STEP 7 project or in another project.

Use this method if you have not created a substitute object for the partner station, for example SIMATIC S5, in the current project.

The following table lists the possible options.

Table 4-2

Meaning for Connection

IP Address /

TSAP / Port

Possible Connection

Establishment

MAC Address

 

Establishment

 

 

 

 

by any partner

empty

empty

passive

 

 

 

 

by any partner via specific TSAP

empty

specified

passive

 

 

 

 

to or by a specific partner

specified

specified

active / passive

 

 

 

 

94

SIMATIC NET NCM S7 for Industrial Ethernet

C79000-G8976-C129–06

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Contents Simatic NET Classification of Safety-Related Notices Qualified Personnel Safety Instructions Regarding your ProductTrademarks Correct Usage of Hardware ProductsPrior to Startup Copyright E Siemens AG 2001-2002All rights reservedManual Communication services with / NCM S7S7-CP and / NCM S7 PrimerAudience Symbols used in this ManualScope of this Manual Ethernet Title ContentNCM S7 for Industrial ManualAdditional Information on Simatic S7 and Step Topic DocumentAccess to Online Help of and NCM S7 ConventionsContents Programming FCs Functions and FBs for S7 Ethernet CPs 141 175201 191197 211Communication via Ethernet CPs in S7 Stations Definition Network AccessIndustrial Ethernet All-Round Communication in the Industrial SectorTypes of Communication Simatic S7 Communication with S7 Ethernet CPsPG/OP communication PROFInet communication S7 communicationS5-compatible communication with SEND/RECEIVE interface Html process controlFile management and file access with FTP Possibilities for Communication between Device TypesConfiguration and Diagnostics PG/OP Communication via Industrial Ethernet ApplicationConfiguration for PG/OP Operation IsdnRequirements for PG Communication PG Communication with over Industrial EthernetNetworking the PG / Engineering Station Procedure RequirementsNodes S7 Communication on Industrial EthernetClient and server functionality at both ends Profibus Interface in the User Program of the S7 Station Configuring S7 ConnectionsBlock type Client Server Described Communication via Ethernet CPs in S7 Stations S5-compatible Communication SEND/RECEIVE Interface1 ISO Transport ConnectionIP Internet Protocol SEND/RECEIVE interfaceStations WANCoordinating Access Using the User Program FETCH/WRITE Services ServerConnection Types Networking in a Multiproject ConfiguringNetworking Stations with Step ToolsVariant examples Characteristics/Configuration VariantsNetwork/Project Variant One Subnet One Project Configuration of the SystemView in a Project Simatic S5 Network/Project Variant Two or More Subnets One Project Network/Project Variant One Subnet More Than One SubProject Organization in a MultiprojectPossibilities for stations outside the current project Merging projects in the multiproject Cell level = subproject Communication via Ethernet CPs in S7 Stations Network/Project Variant Connections between Subnets TCP/IP Communication via Ethernet CPs in S7 Stations Installing and Starting the Ethernet CP With Step Functions InstallationOperation Configuration data in the project ProcedureUDP Aims Creating an Industrial Ethernet SubnetSelect Insert Subnet Industrial Ethernet Properties of Merged Subnets Multiproject Installing and Starting the Ethernet CP with Step Entering an Ethernet CP in the Hardware Configuration Subnet AttachmentInstalling and Starting the Ethernet CP with Step Installing and Starting the Ethernet CP with Step Displaying the Network Attachments of a Station Graphic Overview in NetProOverview in Table Form ResultOverview Setting Further CP PropertiesAddresses Tab Options Tab Option Meaning / EffectCPU Default Setting Time-of-Day Synchronization Tab Diagnostics Tab Addressing TabS7-400/2 Substitute Objects in the ProjectPlant Production Non-Siemen Device Ethernet subnet S7-400/3Project With Substitute Objects Configured Attaching Non-S7 Stations to the SubnetSelecting the Subnet Type for Other Station Example Configuring Communication Services Setting Up ConnectionsAssigning Addresses for the First Time Applies to Latest CPs Assigning the Address Options and RecommendationsSelect the menu command PLC Assign Ethernet Address Installing and Starting the Ethernet CP with Step Alternative Procedure Installing and Starting the Ethernet CP with Step Principle Downloading the Configuration Data to the Target SystemType of Interface Saving the Configuration Data in Non-Volatile Memory Deactivating the MAC Address in the ConfigurationDownloading the Configured Connections Relocating the CP in the Hardware Configuration Page SEND/RECEIVE Interface in the User Program Amounts of Data How the SEND/RECEIVE Interface Works on the CPUFunctions FCs Ethernet CPPurpose of the FCs Programming the SEND/RECEIVE InterfacePrinciple of Job and Data Transfer Programming ConnectionsCalling FCs in the CPU Program Agsend AgrecvSEND/RECEIVE Interface in the User Program FC Calls Faster than the Transmission Time Data Exchange S7 CPU Ethernet CPFC Calls Slower than the Transmission Time SEND/RECEIVE Interface in the User Program Programming Data Transfer on TCP Connections Special FeaturesAdditional Information Purpose of TCP ConnectionsRecommendations for Use with a High Communications Load Known ProblemsRemedy SEND/RECEIVE Interface in the User Program Configuring Communication Connections Programming ConfiguringSteps Program the SEND/RECEIVE interface in the user programPossible Connection Configurations Simatic S5Organization in a Multiproject Characteristics of a Connection ConnectionsTasks of the Ethernet CP Requirements for Configuring Connections Creating a New Connection New Connection Configuring Communication Connections Configuring Communication Connections Connections to Partners in Other Projects Connections to Non-S7 Stations using Substitute ObjectsHandling Connections in a Multiproject By any partner via specific Tsap Empty Unspecified ConnectionsTo or by a specific partner Configuring Communication Connections Toolbar Further FunctionsPrint Function in the Overview Tab Menu option Edit Connection Connections Without AssignmentAssignment to a CP PartnerDisplay Example Remain without assignment Connection PartnerOpening the Dialog Configuring ISO Transport ConnectionsIntroduction TabsSpecifying the Local Connection Endpoint General TabBlock Parameters Attributes Description Access Local EndpointConnection Name Reference Only in Multiproject LaddrTsap Specifying ISO Transport AddressesAddress Parameters Tsap MACTsap Format Local and Remote TSAPsDefault TSAPs Addresses Tab Unspecified ISO transport connectionDynamics Tab Attributes Description Access Connection EstablishmentSpecifying ISO Transport Dynamic Properties Data TransferAttributes Description Access ISO Transport with the FETCH/WRITE Mode Using Fetch Passive / Write PassiveSystem Memory Messages in the Diagnostic BufferLinks to Other Systems Connection Overview with Multiple CPUs in an S7 Station Checking ISO Transport Connection PropertiesOverview Tab Parameter DescriptionConfiguring ISO-on-TCP Connections Properties Specifying the Local Connection Endpoint Parameter Description Access Local Endpoint Specifying ISO-on-TCP Addresses Address parameterAddresses Tab Addresses Tab Unspecified ISO-on-TCP Connection ISO-on-TCP with the FETCH/WRITE Mode 117 Checking ISO-on-TCP Connection Properties Configuring TCP Connection Properties Specifying the Local Connection Endpoint 121 Address Parameters and Connection Types Specifying TCP AddressesTCP Ports Addresses Tab Specified TCP ConnectionApplication / Note Port Addresses Addresses Tab Unspecified TCP Connection TCP with the FETCH/WRITE Mode System Memory Checking TCP Connection Properties Configuring UDP Connection Properties Specifying the Local Connection Endpoint Connection Name Reference Only in Multiproject Specifying UDP Addresses 23 Sending and Receiving on One UDP ConnectionAddresses Tab Specified UDP Connections Addresses Tab Unspecified UDP Connection When to Use Multicast instead of Broadcast ? UDP with Broadcast and Multicast135 Addresses Tab Connection to all Broadcast Nodes Addresses Tab Connection to all Multicast Nodes Checking the Properties of a UDP Connection Free UDP Connection Program-Controlled AddressingRouting to Distribute Load Routing to Distribute LoadProgramming FCs Functions and FBs for S7 Ethernet CPs General Notes on FCs / FBs Block LibraryFCs and Module Replacement Spares Which Block Version Should I Use?Programming FCs Functions and FBs for S7 Ethernet CPs Setting Parameters for FC Calls Calling Communication Blocks for an S7-300Response to Incorrect Addresses Setting Block Parameters Automatically1Cause Reaction / Code Specifying the Data Area on the CPU Parameters for Specifying a CPU Data Area input parametersStatus Information output parameters Evaluating Status CodesFCs for Configured Connections Can be used with MeaningAglsend / Aglrecv Working without the Job Header Working with the Job Header 8EH 0BHCall Meaning of the BlockAgsend / Aglsend How the Block Works Time Explanation of the Formal Parameters Parameter Declara Type Possible Remarks Tion ValuesTransport Condition CodesOn ISO On UDPDone Error Status 8F3AH8F7FH Example of Agsend BEU160 2 FC6 Agrecv / FC60 Aglrecv Agrecv / AglrecvProgramming FCs Functions and FBs for S7 Ethernet CPs Status code is updated at each block call NDR Output Bool Recv Input ANYStatus Output Word NDR Error Status LEN Output INT166 Access with FETCH/WRITE FCs for Access Coordination with FETCH/WRITELocks external data access With FETCH/WRITEAglock FETCH/WRITE Locked = Aglock FETCH/WRITE1 FC7 Aglock Locked Output Bool 2 FC8 Agunlock 172 Name Numeric Data / Resource Requirements of the FCsMC7 174 NCM S7 Diagnostics Overview Diagnostic Options in StepWhere to Find Further Information What You Should Already KnowGeneral diagnostic and statistical functions Functions of NCM S7 DiagnosticsMode-Dependent Functions Installing and Starting NCM S7 Diagnostics AlternativeStructure Menu Meaning General Menu CommandsOptionsCustomize 181 MPI Starting Diagnostics from the NCM Program GroupInitial Situation ProfibusInternetworking Starting Diagnostics from the Properties Dialog of the CPTCP/IP Other Startup Options How to Use Diagnostics If the CP is in the RUN modeCall-Specific Diagnostic Functions 187 Checklist for ‘Typical Problems‘ in a System MeaningChecklist for General CP Functions Problem Possible Cause Identifying the Cause and RemedyCheck the user program Communication Connections ChecklistEvaluate diagnostic buffer Evaluate status bytes in AG-SENDFirmware Loader Uses of the Firmware Loader ApplicationFirmware Load FilesStarting the Download NCM S7 Firmware Loader menu commandLoading Firmware 1st Step2nd Step 3rd Step195 196 References References Sinec CP Order Numbers Glossary General Section Multicast GatewayIndustrial Ethernet NCM S7 for Industrial EthernetProtocol ServicesPROFInet SegmentTransmission rate SubnetSystem Transport layerInd. Ethernet station Base addressISO-on-TCP RFC1006 Media Access Control MACMAC address S5S5 connectionPROFInet PROFInet device Profibus devicePROFInet PROFInet device, proxyPage FETCH/WRITE Structure of Write Frames Structure of Fetch Frames ORG ID Parameter ValuesS7 Address Area DbnrPI/PQ Address Area216 New in Release 05 / V5.1 SP3 New in Release 04 / up to V5.1 SP2Page Index-223 NCM S7 Technical Support Service & Support on the Internet
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