eWON General Reference Guide - Esco Drives & Automation

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General Reference GuideIO Servers Configuration5.12 S7-300&400 (MPI/Profibus - ISOTCP)5.12.1 IntroductionS73&400 IO Server is dedicated to communicate directly with SIEMENS PLC (S7-300 & S7-400).The eWON will connect directly to the PLC’s MPI interface or Profibus DP interface.WARNING: The MPI/Profibus interface requires a special serial port hardware!ONLY the eWONs MPI/Profibus are able to communicate in MPI/ProfibuseWON product codes like EWxxx6x (i.e.: EW41264 eWON4001 MPI with pstn modem)eWONs MPI/Profibus have a Serial Gender-Changer fixed on DB9 connector to provide female DB9connector.eWONs MPI/Profibus have a coloured (in light blue) square around DB9 connector labelized MPI (see photoon right).Others Serial IO Server (i.e.: PPI, modbus RTU) are not available on eWON MPI/Profibus.The ISOTCP (Ethernet) is available on all eWON types.With an eWON500 (with a standard Serial Port), you can have access to a S7-300&400 Siemens PLC by Ethernet thanksto the ISOTCP protocol.With an eWON500-MPI, you can have acces by the MPI port and by ISOTCP to your S7-300&400, if it has both interfaces.Multi-Session: Since firmware 5.4, the ISOTCP-MPI gateway allows multiple clients to access the same PLC at the same time.PPI MultiMaster (for S7-200): Since firmware 5.5, it is supported by the MPI port of the eWON (See “S7-200 (PPI - ISOTCP)” on page 130)5.12.2 Setup5.12.2.1 COM configurationFigure 96: MPI link configurationParameterGateway MPI/ProfibusDestination NodeProtocol TypeDescriptionIdentifies the PLC MPI/Profibus Destination address when ISOTCP is usedSelect protocol MPI or PROFIBUS.As the MPI port configuration is shared by the S73&400 and the S7-200IOServers, this combo box shows also the PPI MULTIMASTER protocol (See“S7-200 (PPI - ISOTCP)” on page 130)PPI MultiMaster and MPI/Profibus are mutually exclusive. It is not allowed touse the S7-200 and the S73&400 IOServers on the MPI port at the same time.Figure 97: MPI/Profibus settingsRG-001-0-EN ver 1.5 eWON® - 20/03/2009 - ©ACT'L sa Page 125
General Reference GuideIO Servers ConfigurationBaud RateReply TimeoutSpeed of the MPI port.Available speeds are:• disable• 9.6 kBauds• 19.2 kBauds• 45.45 kBauds• 93.75 kBauds• 187.5 kBauds• 1.5 MBauds• 3 MBauds (only for 2005CD-MPI or 4005CD-MPI)• 6 MBauds (only for 2005CD-MPI or 4005CD-MPI)• 12 MBauds (only for 2005CD-MPI or 4005CD-MPI)The maximum time the eWON will wait for a valid MPI message responseMPI Address The device address of the eWON on the MPI link (0..126, default is 0)MPI Highest Station AddressThe highest station address polled by eWON. Select between 15, 31, 63 or127.Figure 97: MPI/Profibus settings5.12.2.2 Topic configurationFigure 98: Topic configurationThree (3) topics can be used for the IO Server. These topics are used to give a common property to a group of MPI/ISOTCP Tags like:• Enable/Disable• Global Device Address• Polling RateTopic configuration itemTopic enabledGlobal Device AddressPoll rateDescriptionEnables or disables polling of all the Tags in the topic.See below for the Device Address Syntax. If an address is specified here, it willreplace (overload) the address-defined Tag by Tag.Defines the refresh rate of the Tag name. In a complex application, we canimagine that some Tag names must be refreshed every second - typically fordigital input - and other every minute - typically: temperature-.RG-001-0-EN ver 1.5 eWON® - 20/03/2009 - ©ACT'L sa Page 126
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