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Siemens CP 343-1 manual Reasons for reinitialization, Watchdog, B3L−29

Models: CP 343-1

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6 Configuring and Programming the CP as a PROFINET IO Device

Reasons for reinitialization

The PROFINET IO device requests reinitialization by the user program in the following situations:

SThe length information of the input and output areas in the FCs does not match the information configured for this PROFINET IO device on the PROFINET IO system. A change in the length in the FC calls in the user program counts as a configuration change.

SThe CPU or CP changes to STOP mode.

SThe watchdog time was exceeded (see below).

SFollowing a connection abort between the PROFINET IO controller and PROFINET IO device (for example because the PROFINET IO controller was turned off).

Watchdog

FC11 and FC12 each have their own watchdog. Depending on the average CPU cycle time, the connection to the PROFINET IO controller is terminated if one of the two blocks is no longer called following the initialization phase.

CP 343-1 Lean for Industrial Ethernet / Manual Part B3L	B3L−29
Release 03/2007

C79000-G8976-C198-04

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Siemens CP 343-1 manual Reasons for reinitialization, Watchdog, B3L−29

Contents

CP 343-1 Lean S7-CPs for Industrial EthernetProduct Names Address label Unique MAC address preset for the CPPrinted Product Information Supplied with the Product Compatibility with the Previous VersionContents B3L−44 B3L−33B3L−46 B3L−53Services Properties / ServicesApplication B3L−5Properties / Services Programming − Using Blocks ConfigurationVersion / NCM IE Functions of the CP B3L−7General Operation Requirements for UseB3L−8 Order NumberCPU 314 IFM B3L−9B3L−10 Step Explanation / Meaning Installation and Commissioning Procedure / StepsGround/Chassis Ground Concept B3L−13 Displays DC 5 V power supply via the backplane bus green = OKAcyclic data exchange, for example Send/Receive Not relevant for Profinet IO dataCP Operating Mode LEDs for displaying the modeSFred BF red GreenB3L−16 LEDs for displaying the CP communication statusDisplay Meaning RX/TX green P1 / P2Characteristic Explanation / Values Characteristic Data for S7 CommunicationPerformance Data Number of Possible Connections over EthernetComponent Explanation / Values Characteristics of the SEND/RECEIVE InterfaceExecution Times of the FCs Agsend / Agrecv Execution times of the FCs Pniosend / Pniorecv Characteristic Data for Profinet IOCP as Profinet IO device ConfigurationProgramming Configuring and Programming the CP as a Profinet IO DeviceOverview of the Preparatory Steps Intelligent Profinet IO DevicePrinciple of Data Exchange over Profinet IO Installing the CP and Specifying it as Profinet IO Device ConfigurationB3L−23 Download the configuration data to the Simatic 300 stationProfinet IO Controller Requirements for Configuration in StepConfiguring the Profinet IO controller B3L−25 ResultProperties Dialog of the Device Assigning the Device Name Configuring the properties of the CP as Profinet IO deviceFCs ProgrammingInterface for Programming on the Profinet IO Device Initialization Initialization and ConfigurationData consistency B3L−29 Reasons for reinitializationWatchdog Pniorecv Pniosend Example of Configuration and ProgrammingB3L−31 Call interface Pniosend in the user programB3L−32 Call interface Pniorecv in the user programSettings for Access to Diagnostic Data Web DiagnosticsStarting and Working with Web Diagnostics Web diagnostics opens with the StartLayout of the Diagnostics Pages Diagnostics Pages of the CPParameter Function StartGeneral StatusParameter IdentificationIdentification VersionRack Configuration Rack name Rack ConfigurationB3L−38 Details no. of the event Diagnostic BufferEvents Parameters Tab Industrial EthernetNetwork attachment IP parametersUDP Connections Tab Statistics TabTCP Connections Tab Parameters of a Profinet IO Device Profinet IO ConfigurationAssigned Pnio controller B3L−43Use as a Replacement Replacing Older Modules / Replacing Faulty ModulesCompatibility with Predecessor Products Extended FunctionalityB3L−45 Module ReplacementOriginally configured module Configuration Steps How to Use the Function Memory ResetDefaults Further Notes on OperationBehavior after Memory Reset Working with Fast Ethernet − automatic switchoverHow Automatic Switchover of the Network Settings Works AutocrossingFurther Notes Automatic Setting or Individual Network SettingsSupported MIB Objects Snmp AgentInfluence of MPI on Connections via Industrial Ethernet Access Permissions using Community NameReserved Port Numbers Special Features of IP ConfigurationProtocol Port number Service Gsdml file Other information available about the CPHow to Download New Firmware How to Load New FirmwareLEDs to Indicate the CP Mode RequirementsB3L−54 Technical SpecificationsB3L−55 B3L−56