Siemens CP 343-1 manual Automatic Setting or Individual Network Settings, Further Notes

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9 Further Notes on Operation

Automatic Setting or Individual Network Settings

As default, the CP is configured for automatic detection (autosensing). As soon as you define a configuration manually when configuring the CP with

STEP 7/HW Config (in the properties dialog of the CP − “Port Parameters” tab), the automatic negotiation of the network settings (autonegotiation) is no longer in effect. If, on the other hand, the communication partner works with autonegotiation, no communication will be established.

Only use manual configuration when the communication partner works with the same manually set configuration.

Notice

When operating with PROFINET IO, a transmission rate of 100 Mbps full duplex is necessary.

Further Notes:

SAutocrossing

If you disable the “automatic setting” option in the “Port Parameters” tab, autocrossing is also disabled; which cable you can then use depends on the role of the CP (network component or end device).

S10/100 Mbps network components without “Autonegotiation”

If you use 10/100 Mbps network components that do not support “Autonegotiation”, you may have to set the mode manually during CP configuration using STEP 7 / HW Config (in the properties dialog of the CP). As default, the CP is configured for automatic detection.

SForcing a specific network setting instead of “Autonegotiation”

If your application requires a fixed network setting instead of “Autonegotiation”, both partner devices must have the same setting.

SNo reaction to Autonegotiation query with manual configuration

Remember that if you configure the CP manually, it will not react to an autonegotiation query! As a result, a connected partner will not be able to make the required network setting and communication will not be established.

Example:

If, for example, the CP is set to “100 Mbps − full duplex”, a CP connected as partner will set “100 Mbps − half duplex”. Reason: Due to the fixed setting, no autonegotiation response is possible; the connected partner recognizes the 100 Mbps with autosensing but nevertheless remains in half duplex.

B3L−48	CP 343-1 Lean for Industrial Ethernet / Manual Part B3L
	Release 03/2007

C79000-G8976-C198-04

Image 48

Contents S7-CPs for Industrial Ethernet CP 343-1 LeanAddress label Unique MAC address preset for the CP Product NamesPrinted Product Information Supplied with the Product Compatibility with the Previous VersionContents B3L−33 B3L−44B3L−46 B3L−53Properties / Services ServicesApplication B3L−5Properties / Services Configuration Programming − Using BlocksVersion / NCM IE Functions of the CP B3L−7Requirements for Use General OperationB3L−8 Order NumberB3L−9 CPU 314 IFMB3L−10 Installation and Commissioning Procedure / Steps Step Explanation / MeaningGround/Chassis Ground Concept B3L−13 DC 5 V power supply via the backplane bus green = OK DisplaysAcyclic data exchange, for example Send/Receive Not relevant for Profinet IO dataLEDs for displaying the mode CP Operating ModeSFred BF red GreenLEDs for displaying the CP communication status B3L−16Display Meaning RX/TX green P1 / P2Characteristic Data for S7 Communication Characteristic Explanation / ValuesPerformance Data Number of Possible Connections over EthernetCharacteristics of the SEND/RECEIVE Interface Execution Times of the FCs Agsend / AgrecvComponent Explanation / Values Characteristic Data for Profinet IO CP as Profinet IO deviceExecution times of the FCs Pniosend / Pniorecv Configuring and Programming the CP as a Profinet IO Device ConfigurationProgrammingOverview of the Preparatory Steps Intelligent Profinet IO DevicePrinciple of Data Exchange over Profinet IO Configuration Installing the CP and Specifying it as Profinet IO DeviceDownload the configuration data to the Simatic 300 station B3L−23Requirements for Configuration in Step Configuring the Profinet IO controllerProfinet IO Controller Result B3L−25Configuring the properties of the CP as Profinet IO device Properties Dialog of the Device Assigning the Device NameProgramming Interface for Programming on the Profinet IO DeviceFCs Initialization and Configuration Data consistencyInitialization Reasons for reinitialization WatchdogB3L−29 Example of Configuration and Programming Pniorecv PniosendCall interface Pniosend in the user program B3L−31Call interface Pniorecv in the user program B3L−32Web Diagnostics Settings for Access to Diagnostic DataStarting and Working with Web Diagnostics Web diagnostics opens with the StartDiagnostics Pages of the CP Layout of the Diagnostics PagesStart Parameter FunctionGeneral StatusIdentification ParameterIdentification VersionRack Configuration Rack Configuration Rack nameB3L−38 Diagnostic Buffer EventsDetails no. of the event Industrial Ethernet Parameters TabNetwork attachment IP parametersStatistics Tab TCP Connections TabUDP Connections Tab Profinet IO Configuration Parameters of a Profinet IO DeviceB3L−43 Assigned Pnio controllerReplacing Older Modules / Replacing Faulty Modules Use as a ReplacementCompatibility with Predecessor Products Extended FunctionalityModule Replacement Originally configured module Configuration StepsB3L−45 Memory Reset How to Use the FunctionDefaults Further Notes on OperationWorking with Fast Ethernet − automatic switchover Behavior after Memory ResetHow Automatic Switchover of the Network Settings Works AutocrossingAutomatic Setting or Individual Network Settings Further NotesSnmp Agent Supported MIB ObjectsAccess Permissions using Community Name Influence of MPI on Connections via Industrial EthernetSpecial Features of IP Configuration Protocol Port number ServiceReserved Port Numbers Other information available about the CP Gsdml fileHow to Load New Firmware How to Download New FirmwareLEDs to Indicate the CP Mode RequirementsTechnical Specifications B3L−54B3L−55 B3L−56

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