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1. Y CabinButtonFloor binary Anwahl Innenkabine EG CabinButtonFloori binary Anwahl Innenkabine 1 0G CabinButtonFloor2 binary Anwahl Innenkabine 2 0G CabinButtonFloor3 binary Anwahl Innenkabine 3 0G CabinButtonFloor4 binary Anwahl Innenkabine 4 0G CabinFlush binary Kabine buendig CabinNearDoor binary Kabine in Tuerbereich Outputs Reset Filter Name Type Comment Y Y Y CabinIndicatorDown binary Innenanzeige Ab CabinIndicatorFloor0 binary Rueckmeldung Anwahl EG CabinIndicatorFloori binary Rueckmeldung Anwahl 1 0G CabinIndicatorFloor2 binary Rueckmeldung Anwahl 2 0G CabinIndicatorFloor3 binary Rueckmeldung Anwahl 3 0G CabinIndicatorFloor4 binary Rueckmeldung Anwahl 4 0G CabinIndicatorUp binary Innenanzeige Auf Figure 3 3 Configuring the OPC Server gateway 3 2 4 Exporting and importing a signal table in ini format A signal table in ini format contains six sections that are tagged with keywords as shown in Table 3 1 These keywords need to stand alone in a line The subsequent lines contain names of signals that are to be associated to this section Sections can be arranged in arbitrary order it is not necessary to use all sections Keyword Meaning AIN Analog input signals HN Integer input signals BIN Binary input signals AOUT Analog output signals IOUT Integer output signals BOUT Binary output signals Table 3 1 Sections in the ini format For every section the file contain
2. 4 The server has been temporarily suspended via some vendor specific method and is not getting or sending data Note that Quality will be returned as OPC_QUALITY_OUT_OF_SERVICE 5 The server is in Test Mode The outputs are disconnected from the real hardware but the server will otherwise behave normally Inputs may be real or may be simulated depending on the vendor implementation Quality will generally be returned normally 6 The server is running properly but is having difficulty accessing data from its data sources This may be due to communication problems or some other problem preventing the underlying device control system etc from returning valid data It may be complete failure meaning that no data is available or a partial failure meaning that some data is still available It is expected that items affected by the fault will individually return with a BAD quality indication for the items Table 4 5 Meaning of an OPC Servers status values 4 4 Signal properties within the gateway 4 4 1 Cycle multiplier Like any SIMIT gateway the OPC Client gateway will be executed cyclically As usual you provide the cycle time via the cycle in the gateways properties view see section 4 3 Since by definition the OPC gateway uses software layers COM DCOM which may influence performance of signal exchange you may use a cycle multiplier to adapt to your possibilities A cycle multiplier of n leads to
3. Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 1 SIEMENS Functioning of the OPC gateway 2 FUNCTIONING OF THE OPC GATEWAY OPC is a well established standard for communication within automation technology and is maintained by the OPC Foundation www opcfoundation org In the OPC Classic Architecture an OPC DA Server is connected to a subordinate hardware layer Signals originating from this hardware layer are made available via the local network to one or more OPC DA Clients see Figure 2 1 TCPIIP OPC Server j l j Field devices Figure 2 1 Typical OPC configuration OPC Server and OPC Client may be running locally on the same PC or on different PCs The OPC protocol can also be used to communicate data between programs that support OPC independently from any hardware devices With the OPC gateway SIMIT can be used both as OPC Server and as OPC Client In both cases SIMIT supports the OPC standard v3 0 in data access mode OPC DA 3 0 Within a SIMIT project only one single OPC Server gateway can be used The OPC Client gateway can be used in several instances however This allows for you to connect a single SIMIT simulation to several OPC Servers You can also use one single OPC Server gateway and several OPC Client gateways simultaneously within a SIMIT project Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 2 SIEMENS The OPC Server gateway 3 THE OPC S
4. SIEMENS 5 2 Domain and User 22 5 3 Granting access rights 22 Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page II SIEMENS List of Figures Figure 2 1 Typical OPC configuration 2 Figure 3 1 Adding an OPC Server gateway 3 Figure 3 2 Opening the OPC Server gateway in edit mode 4 Figure 3 3 Configuring the OPC Server gateway 5 Figure 3 4 Properties of the OPC Server gateway 7 Figure 3 5 OPC Server cannot be configured 9 Figure 4 1 Adding an OPC Client gateway 10 Figure 4 2 Opening the OPC Client gateway in edit mode 11 Figure 4 3 Configuring the OPC Client gateway 12 Figure 4 4 Properties within the OPC Client gateway that can be configured 15 Figure 4 5 OPC Client gateways properties view in running simulation 16 Figure 4 6 Quality signal in the properties view of a signal 18 Figure 4 7 Value of the quality signal within the properties view of the signal 19 Figure 4 8 Input signal that can be read 20 Figure 4 9 Usage of readable input signals 20 Figure 4 10 Messages concerning not reachable OPC Server 21 Figure 4 11 Messages concerning unknown OPC signals 21 Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page III SIEMENS List of Tables Table 3 1 Table 3 2 Table 3 3 Table 4 1 Table 4 2 Table 4 3 Table 4 4 Table 4 5 Table 4 6 Sections in the ini format Interpretation of a signal table Mapping of data types Sections in the ini format Interp
5. anyway and the connection will be established in background If an already established connection breaks later SIMIT will try and establish a new connection cyclically In such cases the messaging system will keep you notified see Figure 4 10 Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 20 SIEMENS The OPC Client gateway X i Mask acknowledged messages Simulation time Category Source Message Y hd 00 00 00 000 SYSTEM MESSAGE Gateway OPC Client OPC Server not ready Figure 4 10 Messages concerning not reachable OPC Server The current state of connection can be monitored using the status display see section 4 3 After a connection is established to the OPC Server SIMIT will try and register all signals as listed in the OPC Client gateway with the OPC Server It may happen that a signal is unknown to the OPC Server or does not have the right data type In this case the messaging system will keep you notified see Figure 4 11 iX i Mask acknowledged messages Simulation time Category Source Message Y Y IY ME Y 00 00 00 000 SYSTEM WARNING Gateway OPC Client Unknown OpcItem InputSignal 00 00 00 000 SYSTEM WARNING Gateway OPC Client Unknown OpcItem OutputSignal Figure 4 11 Messages concerning unknown OPC signals Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 21 SIEMENS DCOM configuration 5 DCOM CONFIGURATION As long as both Server and Client are r
6. on this machine This needs to be explicitly enabled since such action might possibly be dangerous to your machine Both access rights as well as launch and activation rights need to be properly set Required rights can be granted to all users It is more secure however to create a dedicated user group This allows you to individually decide who should be member of this group and thus is Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 22 SIEMENS DCOM configuration assigned further reaching rights In addition to general settings concerning COM security you need to set rights for both OPC Server and the helper tool OPCEnum exe For configuration use dcomcnfg exe under Windows XP and Windows Vista Details concerning DCOM configuration can e g be found in the document Using OPC via DCOM with Windows XP Service Pack 2 released by the OPC foundation and available in the internet via http www opcfoundation org Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 23
7. 2 Figure 4 7 Value of the quality signal within the properties view of the signal Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 19 SIEMENS The OPC Client gateway 4 5 Special features of the OPC Client gateway 4 5 1 Reading input signals Signals that are communicated from SIMIT to an OPC Server may not be accepted and taken over by the OPC Server In your simulation you may need to use the value that actually is valid so you can read input signals Please not that this is possible only if the signal is declared as readWritable in the OPC Server In order to be able to read an input signal please check the corresponding option within its properties view see Figure 4 8 Property Value Name InputSignal Type binary Idi Multiplier 1 Comment Figure 4 8 Input signal that can be read You can then use the input signal in an output connector in order to read the value that is actually effective on the OPC Server side see Figure 4 9 Wert der von SIMIT an den OPC Server geschickt wird b 0PCClientInputSign Wert der vom OPC Server zur ckgelesen wird OPC Client InputSigns amp Figure 4 9 Usage of readable input signals 4 5 2 Establishing a connection to the OPC Server A connection to the OPC Server is established automatically upon starting the simulation If no connection could be established with a timeout of 5 seconds the simulation will start
8. EAL integer INT DINT integer REAL analog 5 Comment Text as comment optional Comment Lower Limit Lower and upper limit of analog None Sm signals measurement range for input d Upper Limit signals boundary values for output None signals 8 Standardization Type no of standardization None Unit Signal unit e g physical unit for None measured values 10 Default value Initial value that is used as default Default value value for this signal 11 Cycle Definition of cycle multiplier n None Signal will be updated in every n th cycle Table 3 2 Interpretation of a signal table Copyright Siemens AG 2013 Process Automation SIMIT 7 OPC Gateway Page 6 SIEMENS The OPC Server gateway 3 3 Properties of the OPC Server gateway When the gateway is opened you see its editor The properties view see Figure 3 4 is used to define properties as follows e Cycle Here you can define the cycle the gateway will use for data exchange Use the project manager to assign absolute values to the eight available cycles throughout the project The default value for cycle 2 is 100ms For further detail concerning a gateways data exchange please see the general SIMIT gateway manual e Server name Display of the SIMIT OPC servers name is for your information only The server name always is TSOPC SDN DA Simit Server It cannot be changed Server name or ProgID are required to configure an OPC Client to access this OPC Server e Pr
9. ERVER GATEWAY In this chapter you learn how to create and configure an OPC Server gateway within your SIMIT project and you also learn to know the properties and special features of this gateway 3 1 Creating an OPC Server gateway In order to add an OPC Server gateway to your project use the New Gateway command in the project tree Choose OPC Server as gateway type see Figure 3 1 Selection x New Gateway PROFIBUS DP PROFINET IO e OPC SERVER OPC CLIENT SHM PLCSIM PRODAVE OK Cancel Figure 3 1 Adding an OPC Server gateway In the SIMIT project you may assign an arbitrary name to your OPC Server gateway To accept the default name just press Enter The gateway editor will now open automatically By double clicking the gateway or by using the context menu you can open the editor at any time later see Figure 3 2 Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 3 SIEMENS The OPC Server gateway Figure 3 2 Opening the OPC Server gateway in edit mode 3 2 Configuring I O signals in the OPC Server gateway The input and output signals of the OPC Server gateway can be edited manually in the editor or can be configured by importing a signal table see Figure 3 3 For import just click the 4 button SIMIT 7 OPC Gateway Page 4 Copyright Siemens AG 2013 Process Automation SIEMENS The OPC Server gateway E ty n 4 w Inputs Reset Filter Default Name Type Comment
10. SIEMENS SIMIT 7 User Manual SIEMENS Edition January 2013 Siemens offers simulation software to plan simulate and optimize plants and machines The simulation and optimization results are only non binding suggestions for the user The quality of the simulation and optimizing results depend on the correctness and the completeness of the input data Therefore the input data and the results have to be validated by the user Trademarks SIMIT is a registered trademark of Siemens AG in Germany and in other contries Other names used in this document can be trademarks the use of which by third parties for their own purposes could violate the rights of the owners Copyright Siemens AG 2013 All rights reserved Exclusion of Liability The reproduction transmission or use of this document or ist We have checked that the contents of this document contents is not permitted without express written authority correspond to the hardware and software described However Offenders will be liable for damages All rights including rights deviations cannot be entirely excluded and we do not created by patent grant or registration of a utility model or guarantee complete conformance The information contained design are reserved in this document is however reviewed regularly and any Siemens AG necessary changes will be included in the next edition We Industry Sector welcome suggestions for improvement Industry Automation Div
11. ame of this signal consists of the name of the original signal and the suffix quality see Figure 4 6 OutputSignal Property Value Name OutputSignal Type binary s Multiplier 1 Comment Quality Signal OutputSignal quality Figure 4 6 Quality signal in the properties view of a signal Within the properties view of a signal in the OPC Client gateway you can observe the value of its corresponding quality signal when the simulation is running see Figure 4 7 You may also use this quality signal like any other integer signal within your simulation Input signals i e signals that are communicated from the SIMIT OPC Client to the OPC Server always are assigned quality good non specific i e OxCO 192 decimal This value cannot be changed Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 18 SIEMENS The OPC Client gateway NOTE gt Please note that quality signals are also only updated when there is a connection to the OPC Server If in doubt please check the status display in the properties view of the OPC Client gateway OPC Client ie gt Inputs Reset Filter w Outputs Reset Filter Name Type Multiplikator Comment bd 4667 SimulatedData Random integer 1 SimulatedData Signal binary 1 gt 0 5877852 ESS fano 2 SimulatedData Sine Property Value Name SimulatedData Sine Type Multiplier 1 Comment Quality Sianal SimulatedData Sine quality 19
12. ay will use for data exchange Use the project manager to assign absolute values to the eight available cycles throughout the project The default value for cycle 2 is 100ms For further detail concerning a gateways data exchange please see the general SIMIT gateway manual e Host name Here you can specify on which PC the OPC Server this OPC Client should communicate with is running You can provide either the PCs name or its IP address The default value is the local machine localhost e ProgID Specify the Progld of the OPC Server that should be accessed on the machine depicted by hostname If you use a local connection which means the hostname is localhost you can select from a list of all ProgIDs of OPC Servers that can be accessed locally Just select the OPC Server this gateway should communicate with If you leave the ProgID not assigned there will be no connection established to any OPC Server when starting the simulation In this case cyclic data exchange does not take place Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 15 SIEMENS The OPC Client gateway Status display You can query the state of an accessed OPC Server when the simulation is running Each OPC Client gateway provides a dedicated integer signal for that purpose the name of which you can specify here The signals default name is is_active You may use this signal like any other output signal of any gateway in your SIMIT pro
13. gnals with quality good non specific i e value OxCO 192 decimal This value cannot be changed When the simulation is closed the OPC server remains active as long as there are OPC clients connected In this case signal quality will be bad out of service i e value Ox1C The quality value can be read by any connected OPC Client but is not displayed in the OPC Server gateway 3 4 3 OPC Server state A connected OPC Client can query the server state The server of SIMITs OPC Server gateway will return value 1 running as status when the simulation is running value 4 suspended otherwise 3 4 4 Changing an OPC Servers configuration When the simulation is started the SIMIT OPC Server will automatically be configured with signals as defined in the OPC Server gateway From then on an OPC Client can connect to the Server and access the signals After the simulation is closed the OPC Server remains active as long as a minimum of one OPC Client is connected to it Server state will change to OPC STATUS SUSPENDED signal values will not be updated anymore and the signal s quality will be set to bad out of service i e value Ox1C When the simulation is started again the OPC Server will automatically be checked for modifications in its configuration If the configuration has changed and there are still clients connected the new configuration cannot be assigned To avoid an inconsistent simulation state an error message is issued i
14. ision Process Automation Siemens AG 2013 SIMIT HB V7OPC 2013 01 en Subject to change withour prior notice SIEMENS Contents 1 2 3 5 PREFACE 1 4 Target Group 1 2 Content 1 3 Symbols FUNCTIONING OF THE OPC GATEWAY THE OPC SERVER GATEWAY 3 4 Creating an OPC Server gateway 3 2 Configuring I O signals in the OPC Server gateway 3 2 1 Exporting and importing a signal table in ini format 3 2 2 Importing a signal table in txt format 3 3 Properties of the OPC Server gateway 3 4 Special features of the OPC Server gateway 3 4 1 Used data types 3 4 2 Quality of a signal 3 4 8 OPC Server state 3 4 4 Changing an OPC Servers configuration THE OPC CLIENT GATEWAY 4 1 Creating an OPC Client gateway 4 2 Configuring l O signals in the OPC Client gateway 4 2 1 Exporting and importing a signal table in ini format 4 2 2 Importing a signal table in txt format 4 2 3 Configuration by querying the OPC Server 4 3 Properties of the OPC Client gateway 4 4 Signal properties within the gateway 4 4 1 Cycle multiplier 4 4 2 Mapping of data types 4 4 3 Quality of a signal 4 5 Special features of the OPC Client gateway 4 5 1 Reading input signals 4 5 2 Establishing a connection to the OPC Server DCOM CONFIGURATION 5 1 Firewall Copyright Siemens AG 2013 Process Automation COAOANN N OK EP O OQ e 10 11 13 13 14 15 17 17 18 18 20 20 20 22 22 SIMIT 7 OPC Gateway Page
15. ject and evaluate the servers state When the simulation is running the OPC Client gateways properties view will show the current state of the attached OPC Server see Figure 4 5 Table 4 5 shows the meaning of possible state values Property Value Cycle v Hostname localhost ProgID v Serverstate is_active 0 Figure 4 5 OPC Client gateways properties view in running simulation NOTE gt It depends on the OPC Servers implementation which of the status values mentioned it actually provides 1 Information concerning status values 1 through 6 is taken from the specification Data Access Custom Interface Standard Version 3 00 Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 16 SIEMENS The OPC Client gateway Status value Meaning 0 No connection to the OPC Server 1 The server is running normally This is the usual state for a server 2 A vendor specific fatal error has occurred within the server The server is no longer functioning The recovery procedure from this situation is vendor specific An error code of E_FAIL should generally be returned from any other server method 3 The server is running but has no configuration information loaded and thus cannot function normally Note this state implies that the server needs configuration information in order to function Servers which do not require configuration information should not return this state
16. n this case see Figure 3 5 and simulation will not be started Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 8 SIEMENS The OPC Server gateway Error x e Simulation cannot be opened OPC Server can not be configured Disconnect all connected OPC Clients Figure 3 5 OPC Server cannot be configured Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 9 SIEMENS The OPC Client gateway 4 THE OPC CLIENT GATEWAY In this chapter you learn how to create and configure an OPC Client gateway within your SIMIT project and you also learn to know the properties and special features of this gateway 4 1 Creating an OPC Client gateway In order to add an OPC Client gateway to your project use the New Gateway command in the project tree Choose OPC Client as gateway type see Figure 4 1 Selection x New Gateway PROFIBUS DP PROFINET IO OPC SERVER e OPC CLIENT SHM PLCSIM PRODAVE OK Cancel Figure 4 1 Adding an OPC Client gateway In the SIMIT project you may assign an arbitrary name to your OPC Client gateway To accept the default name just press Enter The gateway editor will now open automatically By double clicking the gateway or by using the context menu you can open the editor at any time later see Figure 4 2 Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 10 SIEMENS The OPC Client gateway Figure 4 2 Openi
17. ng and importing a signal table in ini format A signal table in ini format contains six sections that are tagged with keywords as shown in Table 4 1 Keyword Meaning AIN Analog input signals IN Integer input signals BIN Binary input signals AOUT Analog output signals IOUT Integer output signals BOUT Binary output signals Table 4 1 Sections in the ini format These keywords need to stand alone in a line The subsequent lines contain names of signals that are to be associated to this section Sections can be arranged in arbitrary order itis not necessary to use all sections For every section the file contains a single line per signal Signals are exported with their name comment and cycle multiplier written in double quotes and using the semicolon as separator Name Comment Multiplier For the import the default value needs to be specified too Name Comment Default Multiplier If a line contains a signal name only without any quotes the signal will be imported using the specified name the standard default value and without any comment 4 2 2 Importing a signal table in txt format SIMIT can store a gateway s content in txt format see Table 4 2 This format contains SIMATIC addresses and information about standardization Since this kind of information does not exist within an OPC gateway the txt format does not fully meet your needs here H
18. ng the OPC Client gateway in edit mode 4 2 Configuring l O signals in the OPC Client gateway The input and output signals of the OPC Client gateway can be edited manually in the editor can be configured by importing a signal table see Figure 4 3 or can be configured by querying an accessible OPC Server Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 11 SIEMENS The OPC Client gateway OPC Client w Inputs Reset Filter Default Name Type Multiplier Comment Y Y TB Y CabinButtonFloor binary 1 Anwahl Innenkabine EG CabinButtonFloori binary 1 Anwahl Innenkabine 1 0G CabinButtonFloor2 binary 1 Anwahl Innenkabine 2 0G CabinButtonFloor3 binary 1 Anwahl Innenkabine 3 0G CabinButtonFloor4 binary 1 Anwahl Innenkabine 4 0G CabinFlush binary 1 Kabine buendig CabinNearDoor binary 1 Kabine in Tuerbereich w Outputs Reset Filter Name Type Multiplier Comment Y Y NB Y CabinIndicatorDown binary 1 Innenanzeige Ab CabinIndicatorFloor binary 1 Rueckmeldung Anwahl EG CabinIndicatorFloori binary 1 Rueckmeldung Anwahl 1 0G CabinIndicatorFloor2 binary 1 Rueckmeldung Anwahl 2 0G CabinIndicatorFloor3 binary 1 Rueckmeldung Anwahl 3 0G CabinIndicatorFloor4 binary 1 Rueckmeldung Anwahl 4 0G CabinIndicatorUp binary 1 Innenanzeige Auf Figure 4 3 Configuring the OPC Client gateway Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 12 SIEMENS The OPC Client gateway 4 2 1 Exporti
19. nt gateway First select the OPC Server from which signals are to be transferred in the OPC Client gateways properties as shown in section 4 3 Then click the Browse button All signals from the OPC server that can be mapped to a SIMIT data type see Table 4 3 will be transferred into the OPC client gateway OPC data type SIMIT data type BOOL UI1 binary 11 12 14 18 Ul2 Ul4 UI8 integer R4 R8 analog Table 4 3 Mapping of data types In case not all signals are required you can still manually delete signals from the gateways signal table Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 14 SIEMENS The OPC Client gateway Signals as provided by the OPC server can be readable writeable or readWriteable and are treated in SIMIT as input or output see Table 4 4 OPC SIMIT readable output writeable input readWriteable Input Table 4 4 Mapping of OPC access types 4 3 Properties of the OPC Client gateway When the gateway is opened you see its editor The properties view see Figure 4 4 is used define the cycle host name ProgID and state OPC Client Property Value Cycle 2 Ll Hostname localhost ProgID TsOpcNet DASample 70 B Serverstate is active Figure 4 4 Properties within the OPC Client gateway that can be configured These properties have meaning as follows e Cycle Here you can define the cycle the gatew
20. ogID Display of the SIMIT OPC servers ProgID is for your information only The ProgID always is OPCServer Simit 7 It cannot be changed ProgID or server name are required to configure an OPC Client to access this OPC Server e Use 64 bit integer In SIMIT integer values use 64 bit 8 byte and are created accordingly in the OPC Server gateway In case an OPC Client that is connected to this OPC Server cannot handle 64 bit integer values please uncheck this option SIMIT will then communicate all integer values with 32 bit 4 byte only Please note that this may lead to loss of data if a number cannot be represented using 32 bit only Property Value Cyde 2 a Server name TSOPC SDN DA Simit Server ProgID OPCServer Simit 7 Use 64 bit integer v Figure 3 4 Properties of the OPC Server gateway 3 4 Special features of the OPC Server gateway 3 4 1 Used data types In the OPC Server SIMIT will create signals with data types as listed in Table 3 3 Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 7 SIEMENS The OPC Server gateway SIMIT data type OPC data type Binary BOOL Integer 18 if option use 64 bit integer is checked I4 otherwise Analog R8 Table 3 3 Mapping of data types As a consequence the OPC Server will only provide data types BOOL R8 and 18 or I4 3 4 2 Quality of a signal When the simulation is running SIMIT communicates all OPC si
21. owever you can still import signal tables in txt format only relevant information will be used in the OPC gateway Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 13 SIEMENS The OPC Client gateway Column Name General Meaning Meaning in the OPC gateway 1 Symbol Symbolic name of a signal Signal name if provided optional 2 y o Keys I Q IB QB IW QW ID Distinction between input and QD or in German notation E A output signals 3 Address Signals absolute address e g Signal name preceded by I O if 0 0 oder 512 no symbol provided 4 Type Signals data type BOOL BOOL binary PiE WORD DWORD INT BYTE WORD DWORD integer INT DINT integer REAL analog Comment Text as comment optional Comment Lower Limit Lower and upper limit of analog None signals measurement range for f Upper Limit input signals boundary values None for output signals 8 Standardiza Standardizations type no None tion 9 Unit Signals unit e g physical unit None for measured values 10 Default Initial value that is used as Default value value default value for this signal 11 Cycle Definition of cycle multiplier n Multiplier Signal will be updated in every n th cycle Table 4 2 Interpretation of a signal table 4 2 3 Configuration by querying the OPC Server SIMIT provides an easy way to transfer all signals from an OPC Server to your OPC Clie
22. retation of a signal table Mapping of data types Mapping of OPC access types Meaning of an OPC Servers status values Mapping of data types Copyright Siemens AG 2013 Process Automation 13 14 14 15 17 18 SIMIT 7 OPC Gateway Page IV SIEMENS Preface 1 PREFACE 1 4 Target Group This manual addresses you as a user of the SIMIT simulation system Here you will get to know how to use and handle an OPC gateway in SIMIT As a prerequisite you need to be familiar with the general use of a personal computer and windows Furthermore knowlede of both the SIMIT basic system as well as common features of all SIMIT gateways is required as described in the SIMIT gateways manual 1 2 Content Chapter 2 explains the general functioning of an OPC gateway Chapter 3 describes how to configure and use an OPC Server gateway chapter 4 describes the OPC Client gateway The concluding chapter 5 provides some information about how to configure DCOM for networked communication 1 3 Symbols Particularly important information is highlighted in the text as follows NOTE Notes contain important supplementary information about the documentation contents They also highlight those properties of the system or operator input to which we want to draw particular attention CAUTION AN This means that the system will not respond as described if the specified precautionary measures are not applied Copyright
23. s a single line per signal Signals are exported with their Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 5 SIEMENS The OPC Server gateway name and comment written in double quotes and using the semicolon as separator Name Comment For the import the default value needs to be specified too Name Comment Default If a line contains a signal name only without any quotes the signal will be imported using the specified name the standard default value and without any comment 3 2 2 Importing a signal table in txt format SIMIT can store a gateway s content in txt format This format contains SIMATIC addresses and information about standardization Since this kind of information does not exist within an OPC gateway the txt format does not fully meet your needs here However you can still import signal tables in txt format only relevant information will be used in the OPC gateway Column Name General meaning Meaning in the OPC gateway 1 Symbol Symbolic name of a signal optional Signal name if provided 2 1 O Keys Q IB QB IW QW ID QD or Distinction between input and in German notation E A output signals 3 Address Signals absolute address e g 0 0 Signal name preceded by I O oder 512 if no symbol provided 4 Type Signal data type BOOL BYTE BOOL binary WORD DWORD INT DINT or BYTE WORD DWORD R
24. the corresponding signal to be communicated in every n th cycle and not in every cycle any more In order not to overcharge bandwidth of 2 Description of status values 1 through 6 is taken from the OPC specification Copyright Siemens AG 2013 SIMIT 7 OPC Gateway Process Automation Page 17 SIEMENS The OPC Client gateway communication between OPC Server and OPC Client you may use a small cycle multiplier value for fast changing signals and a large value for slowly changing signals The default value is 1 i e each signal will be updated in each cycle 4 4 2 Mapping of data types SIMIT only knows binary integer and analog signals with integer and analog signals using 64 bit 8 byte An OPC Server may provide signals in several other data types Table Table 4 6 shows how OPC data types are mapped to SIMIT data types OPC SIMIT BOOL UI1 binary 11 12 14 18 Ul1 UI2 Ul4 UI8 integer R4 R8 analog Table 4 6 Mapping of data types For any output signal within the gateway there is no loss of data due to conversion since both integer and analog signals in SIMIT use 64 bit 8 byte 4 4 3 Quality of a signal In addition to the signal value itself an OPC Server will communicate information about its quality You can access this information within the simulation since SIMIT automatically introduces an additional integer signal for any output signal in the OPC Client gateway The n
25. unning on the same machine an OPC connection is a local connection and does not require any special system settings If a local network is used to establish an OPC connection between two different machines some basic conditions need to be met In this case DCOM is used which will only work if configured properly Since communication between different machines usually is controlled by a firewall adequate settings are necessary here too NOTE gt All settings concerning access rights on your windows PC heavily depend on both version of your operating system and software that is installed already Hence we can only provide hints about how to configure DCOM but not a detailed recipe with respect to your environment CAUTION Apply changes to your machines settings only if you are aware of their consequences Please take care not to unwillingly weaken your machines protection 5 1 Firewall When using a firewall you need to allow incoming services for TCP port 135 which is used by DCOM Furthermore all relevant OPC Servers and OPC Clients as well as Microsoft Management Console and OPCEnum must not be blocked 5 2 Domain and User All relevant machines need to belong to the same work group or domain Use the same user name and password on all machines 5 3 Granting access rights When establishing an OPC connection via DCOM a machine will access another machines ressources and launch certain processes

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