Home

CIMPLICITY HMI GagePort Mitutoyo OPC Server

1. FrontPage Express Document FrontPage E ditor 3 0 FrontPage Explorer 3 0 FrontPage WebS ve 3 0 feControl OpeServer 1 jew OocServer 1 GEF GagePort OPC Server GEFScadaDriver Guru et Application HORYSNP Server HDAY YTCF Server HTML Application Image Document InstallShield setup kernel Internet Explorerfv er 1 0 IPM logagent LuComServer MAFlLogonA emote Properties Cancel A 5 12 CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 GFK 2024 5 Select the Location tab Type the node name where the GagePort Mitutoyo OPC server is installed In the example below the OPC Server is installed on the MANUFACTURING node GEF GagePort OPC Server Properties lt Ed MANUFACTURING 6 Select the General tab An example of this sheet is shown below It shows that the GagePort Mitutoyo OPC Server object is registered on this machine but points to another node MANUFACTURING for activation access of the object GEF GagePort OPC Server Properties 7 A chent application on the remote node should now be able to reference the GagePort Mitutoyo Server given that DCOM security issues have been addressed The ProgID of the OPC Server is GagePort Mitutoyo OPC Server and the CLSID is BFBC14F0 1A51 11d5 9AD5 0050042953A6 GFK 2024 Configuring the GagePort Mitutoyo OPC Server DCOM 5 13 Index A About GEFGagePortServer 3 6 Activation DCOM Security 5 2 Alarm
2. The launching User Benefit Server continues to run after log out data continues being collected Limitation Other interactive clients cannot attach to the server This user Benefit Allows other interactive clients to attach to the server and continues to run after log out data collection continues Limitation Requires more configuration than the other two options Recommendation When initially setting up the OPC server or troubleshooting client server interaction problems specify The interactive user Otherwise specify This user and supply a valid user account local machine or domain as required and the passwords configured for this user account Important The OPC server will take on the identity and privileges and permissions of the user account when activated by an OPC client The chosen user account either interactive or this user must be authenticated on a remote OPC client node in order for some OPC interactions to occur e g subscription notifications lall lame net DN Seer M Genan Locabon Securty Idari Endpoints Which um scour do you want bo uea loan the appease 1 The pni 2 The junchng um 36 Pray paer al isn em 1 Allows other interactive Thee er clients to attach to the server 2 Continues to run after logout E Does both of the above Cne coo GFK 2024 Configuring the GagePort Mitutoyo OPC Server DCOM 5 9 5 10 Endpoints The default setting is default s
3. 11 Runtime statistics 4 5 Trace logging 4 3 Troubleshooting tools 4 1 GEF GagePortServer 1 5 GEFGagePortServer reg 5 12 Group 3 6 OPC Server trace logging 4 3 Guidelines DCOM configuration 5 11 H Help Menu Selection About GEFGagePortServer 3 6 Historical Data Access OPC standard 1 1 ID Pre defined for OPC items 2 2 STATISTICS CLIENTS VALUE 2 2 STATISTICS EVENTS VALUE 2 3 STATISTICS GROUPS VALUE 2 2 STATISTICS ITEMS VALUE 2 2 STATISTICS PERIOD VALUE 2 3 STATISTICS READS VALUE 2 2 STATISTICS WRITES VALUE 2 3 Syntax OPC item 2 2 Interactive Mode GagePort Mitutoyo OPC notes 1 4 Interface OPC browse support 2 6 Interfaces Supported automation 1 6 Supported custom data access 1 5 Item 3 6 OPC Server trace logging 4 3 Quality for OPC 2 5 Timestamps for OPC 2 5 Index ii CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 GFK 2024 Item ID OPC item naming convention 2 1 Pre defined for OPC 2 2 STATISTICS CLIENTS VALUE 2 2 STATISTICS EVENTS VALUE 2 3 STATISTICS GROUPS VALUE 2 2 STATISTICS ITEMS VALUE 2 2 STATISTICS PERIOD VALUE 2 3 STATISTICS READS VALUE 2 2 STATISTICS WRITES VALUE 2 3 L Launch Identity DCOM Security 5 2 Log Interpret trace log for OPC Server 4 3 Using the trace log for OPC Server 4 4 Menu Options GagePort Mitutoyo OPC Server user interface 3 1 Menus In OPC Server window 3 2 Message Terminator 3 4 MRU File menu selection for OPC Server window 3 3 N Naming Convention OPC It
4. Connect Group Item All View Menu in OPC Server Window The OPC Server window Trace menu has the following selection Toolbar Status Bar These menu items toggle the visibility of the toolbar and status bar allowing a couple more rows of the list view to be seen Help Menu in OPC Server Window The OPC Server window Help menu has the following selection About GEFGagePortServer About GEFGagePortServer displays the proverbial About dialog box CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 GFK 2024 Using the GagePort Mitutoyo OPC Server Troubleshooting Tools About the GagePort Mitutoyo OPC Server Troubleshooting Tools The GagePort Mitutoyo OPC Server provides troubleshooting tools to help a user diagnose specific aspects of a conversation between an OPC client and a gage tied to the serial port There are three tools provided with the OPC server Uses of the tool outputs are discussed in this section The Value column of the List View OPC Connection Trace Logging Run time Statistics GFK 2024 When things are not right this is the first place to check By running the server interactively then Starting it you can test communication with the gage hubs without having to connect with an OPC client This way you can verify that the OPC server is communicating successfully with the gages OPC related connection information is captured using the Trace Logging diagnostic tool This tool is used
5. Either the time the value last changed or the value was refreshed is associated with each OPC item value This is known as the OPC item timestamp The GagePort Mitutoyo OPC Server synchronizes OPC item timestamps with the current computer node time where the physical devices are attached OPC ltem Timestamps Universal Time Format The OPC Server returns all timestamps to an OPC client in universal coordinated time UTC An OPC client must convert the timestamp to local time as required GagePort Mitutoyo OPC Server Item Quality GFK 2024 Associated with each OPC item value is an indicator of the quality of that value This is known as the OPC item quality The quality of an item is based on whether or not the physical device has provided a value for the Item ID or not The GagePort Mitutoyo OPC Server supports a subset of quality flags specified in the OPC Foundation Data Access standard The supported quality statuses and sub statuses are listed below OPC Status OPC Sub Status Description Good N A A value has been sent by the physical device for the OPC item Bad N A A value has not yet been received for the OPC item The value is unknown Using the GagePort Mitutoyo OPC Server Naming Convention 2 5 OPC Browse Interface Support 2 6 The GagePort Mitutoyo OPC Server supports hierarchical browsing of the items in the server s namespace An example browse session follows Note that the appearance and behavior of a browse ses
6. GEF GagePortServer The OPC Server s unique CLSID class ID is BFBC14F0 1A51 11d5 9AD5 0050042953 A 6 Supported Data Access Custom Interfaces The CIMPLICITY HMI OPC Server implements the following COM interfaces Note that standard COM interfaces are not listed 7 IOPCServer 7 IOPCBrowseServerAddressSpace 7 TOPCItemProperties IConnectionPointContainer 7 IOPCCommon 7 LOPCGroupstateMgt u IOPCASyncIO2 m TOPCAsynclO z TOPCItemMgt z IConnectionPointContainer 7 TOPESYnEIO 7 IDataObject a EnumOPCItemAttributes 7 IEnumOPCItemAttributes Introducing OPC Servers 1 5 1 6 Supported Automation Interfaces The GagePort Mitutoyo OPC Server relies on the standard automation wrapper supplied by the OPC Foundation The following diagram illustrates how the automation wrapper interacts with the automation client e g Visual Basic for Applications script and the custom interface of the GagePort Mitutoyo OPC Server Note that the automation wrapper executes in process with the automation client OPC Automation Client Process OPC Automation Wrapper COM DCOM OPC Custom Interface Mitutoyo Gage Port Server Process Note Selection of the type of interface to use custom or automation depends on the goals of the client application developer Adhoc client applications written in Microsoft Visual Basic for example typically use the automation interface Automation interfaces are easy
7. OPC Server and access it s objects 2 Add the new group to the launch permissions and access permissions ACL for the GagePort Mitutoyo OPC Server Do this using DCOMCNFG 3 Make all user accounts that run an OPC client application part of this new group GFK 2024 Configuring the GagePort Mitutoyo OPC Server DCOM 5 11 Registry Settings for Off node Clients Remote OPC client applications 1 e client applications that run on a computer node other than the one running the GagePort Mitutoyo OPC Server do not have to have GagePort Mitutoyo software installed on a remote machine in order to access the GagePort Mitutoyo OPC Server A remote OPC client registry entry file CIMOpcServer reg ships with the OPC server The registry entries in this file allow an OPC client application to reference the OPC server on another node J4 To setup GagePort Mitutoyo OPC Server access from a remote node 1 Log onto the remote computer node using an account with administrator privileges 2 Using Window explorer or a similar file navigation utility access the file named GEFGagePortServer reg Double click the file to update the registry 4 Using the DCOMCNEFG utility select the Applications tab and double click the application labeled GagePort Mitutoyo OPC Server see graphic below Distributed COM Configuration Properties Applications Default Properties Default Security Default Protocols Applications
8. aus tem Descp rn STATISTICS PERO VALLE 10 Tre esc ln rasen Heat slois weh ee uiae s Tast QUENTS VALUE 0 Fei rie Ol chants Cunerdh se to the OFT sre STATISTICS GAOUPS WALIE 0 Tre bole number of gaps defined n he ORC server ky allchenie STATISTICS ITEMS VALLE i Fe total nimbe of ler emed n the OPC saa be all ehe STATISTICS READS VALUE 0 The ramet ol EAD age pero Ihe ample period STATISTICS WRITES VALUE 0 Tine ruanke of WRITE requests pevioreed free gene peed STAMS TICS EVENTS VALLE 0 Fei are Inland abated i cheers hi pe ge COM 1 SPLE WALLE Bed Quality Wishes from the Simple Said desa on COM Fiesi ra a GFK 2024 3 1 The OPC Server s client window of the user interface consists of a traditional Windows List View with three columns Column 1 Shows all of the OPC Items the server has in its namespace according to the current serial port configuration Note that the first seven items are the internal OPC server statistics These are always present and available to any OPC client that chooses to reference them Column 2 Shows the current more accurately the last known value of the item If no value has been received from the hardware the value shows Bad Quality Column 3 Provides a description of the item Above the List View the user interface provides a toolbar for the more popular menu options Finally there are the menu options File menu Edit menu Trace menu Selections for each menu option are
9. custom setting is set to at least the level Connect Once authentication is enabled DCOM security will attempt to verify the user identities of both the OPC server and the OPC client Thus user accounts must be setup correctly if the OPC Server is on one computer node and the client is on another computer node See the guideline below on domain authentication setup In a peer to peer network the user account under which the OPC server is running must also exist on the OPC client machine and vice versa Enable GagePort Mitutoyo OPC Server activation security by specifying known users and or groups in the DCOMCNFG Use custom launch permissions option for the OPC Server As a rule the activation security should always be more restricted than the authorization security This prevents the situation where an OPC client can activate the GagePort Mitutoyo OPC Server but cannot use the OPC Server objects To restrict access of OPC clients to a GagePort Mitutoyo OPC Server that is already running authorization security modify the access control list ACL of the OPC server by editing the Use custom access permissions option of DCOMCNFG A domain authentication architecture provides the lowest cost solution from a maintenance perspective for DCOM security If you are using a domain then follow these general setup guidelines 1 Create a new domain group Users part of this group will be allowed to launch the GagePort Mitutoyo
10. described below File Menu in OPC Server Window The OPC Server window File menu has the following selections New This option Clears the current serial port configuration and closes the current configuration file if one is loaded The title bar will reflect an Untitled configuration Note that a default configuration is loaded on File New this is not an empty configuration The default configuration defines a Simple serial device on COM 1 This explains the last item in the screen shot above Open This option provides a traditional File Open dialog box Note that the GagePort Mitutoyo OPC Server uses XML files as its native configuration file type With this option you can open a Serial port configuration file which was previously defined and saved Save This option saves the current serial port configuration file to disk If no configuration file is currently loaded this option acts the same as the Save As option Save As This option provides a traditional File Save As dialog box Navigate to the folder where you wish to store the configuration file then enter a name for the file There is no need to enter the file s extension An xml extension will be appended to the name you enter CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 GFK 2024 Both the Save and Save As options prompt to ask if the configuration being saved should be the configuration loaded when the OPC server is launc
11. interact with the screen When it is launched by the user by double clicking on the EXE or shortcut it runs in interactive mode providing a User Interface on the screen The GagePort Mitutoyo OPC Server must be configured prior to being activated by an OPC client The server must first be run interactively the serial ports configured and the configuration saved to disk with File Save As so the server will know what hardware is attached prior to being activated by an OPC client During the File Save operation the server will prompt the user yes or no whether to use this configuration when activated by an OPC client The user must answer Yes at least once so a valid configuration file is stored in the registry for use when the server is started by an OPC client Reviewing GagePort Mitutoyo OPC Server Features OPC Data Access V2 0 compliant out of process server Browsing is supported for OPC clients that can browse hierarchically Extensive diagnostic tools for troubleshooting client server connections Direct support for GagePort Mitutoyo FlexPort and MIG2 gage hubs with any number of hub ports The values read from these devices are delivered to the OPC client as floating point VT_R4 values Support for any simple serial device such as bar code readers with a variety of message formats In addition to CR LF and CRLF terminators the OPC server can be configured to handle messages with no terminator where the message length
12. is fixed and no terminator where the length is variable Finally a custom sequence of characters can be defined to describe how the message terminates This Custom terminator can also be used to define characters at the end of the message that should be ignored Any number of characters at the beginning of the message can also be ignored The resulting value is sent to the OPC client as a VT_BSTR String Serial port configuration is stored in native XML file format The Doc View model provides traditional File New File Open File Save and File Save As functionality so XML configuration files can be saved anywhere with any name When the user saves a configuration they are prompted YES or NO whether to use the saved file when the server is started by an OPC client 1 4 CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 GFK 2024 Reviewing GagePort Mitutoyo OPC Server Specifications GFK 2024 Refer the OPC Foundation specification documents for more information about details presented in this section OPC Specification Compliance The GagePort Mitutoyo OPC Server is compliant with the following OPC standards Data Access Custom Interface Standard V2 0 and V1 0a Data Access Automation Interface Standard V2 0 COM Program ID Once installed the GagePort Mitutoyo OPC Server is typically referenced by an OPC client by its ProgID program ID The ProgID for the GagePort Mitutoyo OPC Server is
13. multiple dialog boxes selectable by tabs across the top as shown below The user interface varies slightly among Windows NT versions Therefore the user interface for your version of Windows NT may be slightly different However the option descriptions in this section are the same for the service pack releases Distributed COM Configuration Properties Applications Default Properties Default Security Default Protocols Applications FrontPage Express Document FrontPage E ditor 3 0 FrontPage Explorer 3 0 FrontPage WrebS ve 3 0 Control Opes erer 1 Fien DocServer 1 GEF GagePort OPC Server GEFScadaD river Guru et Application HOARY SAP Server HOARY CP Server HTML Application Image Document InstallShield setup kernel Internet Explorer yYer 1 0 IPH logagent LuComS erer MAPILogonA emote Properties Carcel A Note COM objects that programmatically initialize DCOM security will cause the DCOMCNEG settings to be ignored CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 GFK 2024 GFK 2024 Step 1 Configure DEOMCNFG Task 2 Double check Default DCOM Settings The current default DCOM settings may be appropriate for the GEF GagePort OPC Server addition The most important settings to double check using the tabs in the Distributed COM Configuration Properties dialog box are as follows Tab DCOMCNFG Default Properties Select Enable Di
14. settings for the computer node or the settings can be customized to adhere to your network s requirements Task 3 Set important DCOMCNFG settings for the GEF GagePort OPC server 1 Double click GEF GagePort OPC Server in the Distributed COM Configuration Properties dialog box on the Applications tab Dee Os Cente alien Perg Dina Frapanta Deka Security Dafont Pratocote ze MT Sa nme all lampali m I ee Irene Graphic displays default settings er Configuring the GagePort Mitutoyo OPC Server DCOM 5 7 2 Configure the tabs to your network s needs The following descriptions show frequently used specifications Tab Most Frequently Used Selections Location The option Run application on this computer Bahia Security Use default access permissions for authorization security and Use default launch permissions for activation security unless the default settings do not satisfy your system security requirements If customized settings are required specify the trusted users and or groups ACL for authorization and activation security settings 5 8 CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 GFK 2024 Identity Options provide the following benefits and limitations The interactive User Benefit Allows other interactive clients to attach to the server Limitation The server will shut down after a log out and data collection will be stopped However CIMPLICITY may still be running
15. to log information about an OPC conversation between a client and a server to a text file See the next section for more details The OPC Server maintains OPC conversation run time performance statistics These statistics can be used to diagnose computer node performance problems and to tune OPC client reporting requirements See page 4 flor more information 4 1 4 2 The following diagram illustrates the scope of diagnostic information generated by each tool The following sections describe the output from each tool and how to use it Gage Hubs Serial Ports BE _ Use the List View Values column Use to diagnose Runtime MITUTOYO problems Statistics to OPC here monitor Server through put problems B Use OPC Connection 1 Logging to diagnose problems here OPC OPC Client A Client B CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 GFK 2024 OPC Connection Trace Logging Trace logging monitors the state of a connection between an OPC client s and the GagePort Mitutoyo OPC Server The details tracked are determined by the chosen trace level as follows Trace Level Description Connect Log server activation events and client connect disconnect events Group Log OPC group creation deletion and modification events ltem Log OPC item transaction events read write subscription updates All Log all events The OPC server must be
16. to use in the VB and VBA development environments However the automation interface is slower at execution time Applications written in Microsoft Visual C for example use the custom interface This is the most efficient interface but it is more complex to use Blobs The GagePort Mitutoyo OPC Server does not support the use of blobs Refer to the Data Access specification for more information on blobs CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 GFK 2024 Reviewing GagePort Mitutoyo OPC Server Troubleshooting Tools GFK 2024 GagePort Mitutoyo OPC Server provides several diagnostic tools for troubleshooting problems common to a heterogeneous software application environment The tools are designed to help a user diagnose specific aspects of a conversation between an OPC client and the physical devices OPC Connection Trace Logging OPC related connection information is captured using the Trace Logging diagnostic tool This tool is used to log information about an OPC conversation between a client and a server to a text file See the section OPC Connection Trace Logging in the Using the GagePort MITUTOYO OPC Server Troubleshooting Tools chapter for more information Run time Statistics The OPC Server maintains run time performance statistics for OPC client server interactions These statistics can be used to diagnose computer node performance problems and to tune an OPC client s use of the GagePort Mitutoyo
17. 2 2 STATISTICS WRITES VALUE Pre defined item ID 2 3 Subscription Transactions Per Period OPC client statistics 4 5 Subscriptions OPC runtime statistics 4 6 Index iv CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 Supported Features for GagePort Mitutoyo OPC Server 1 4 Syntax OPC item ID 2 2 T Timestamps OPC items 2 5 Universal coordinated time 2 5 Toolbar Status Bar 3 6 Tools Configure DCOM security 5 3 Troubleshooting for GagePort Mitutoyo 4 1 Trace Log Interpreting 4 3 OPC connection 4 3 Sample 4 4 Using 4 4 Trace Menu Selection All 3 6 Connect 3 6 Group 3 6 Item 3 6 Off 3 6 Troubleshoot GagePort Mitutoyo OPC Server 1 7 Tools for the GagePort Mitutoyo OPC Server 4 1 U Universal Coordinated Time 2 5 User Interface Menu options 3 1 V Value Column of the List View OPC Server troubleshooting tools 4 1 VARIANT Data type 2 4 View Menu Selection Toolbar Status Bar 3 6 W Window Columns for OPC Server 3 2 File menu for OPC Server 3 2 Menus for OPC Server 3 2 Windows NT GagePort Mitutoyo OPC server 1 3 Write Transactions Per Period OPC client statistics 4 5 Writes Transactions Per Period OPC runtime statistics 4 6 GFK 2024
18. A FANUC GE Fanuc Automation CIMPLICITY Monitoring and Control Products CIMPLICITY HMI Plant Edition GagePort Mitutoyo OPC Server Operation Manual GFK 2024 July 2001 GFL 005 Following is a list of documentation icons Fa of Warning notices are used in this publication to emphasize that hazardous voltages currents temperatures or other conditions that could cause personal injury exist in the equipment or may be associated with its use In situations where inattention could cause either personal injury or damage to equipment a Warning notice is used 12 Caution provides information when careful attention must be taken in order to avoid damaging results wa Important flags important information J4 To do calls attention to a procedure Note calls attention to information that is especially significant to understanding and operating the equipment IP Tip provides a suggestion Akk Guide provides additional directions for selected topics This document is based on information available at the time of publication While efforts have been made to be accurate the information contained herein does not purport to cover all details or variations in hardware or software nor to provide for every possible contingency in connection with installation operation or maintenance Features may be described herein which are not present in all hardware and software systems GE Fanuc Automation assume
19. COM DCOM technology The OPC specification defines the COM interfaces and object behaviors common to automation software applications Since the OPC standard is COM compliant DCOM can be leveraged for distributed deployments For example an OPC client application can run on a computer node different from that of an OPC server Neither application the client or the server is aware of this distributed architecture GFK 2024 1 1 1 2 The following diagram illustrates the client server architecture defined by the OPC specification Client Application A Client Application B OPC Client OPC Client Interface COM DCOM BA Interface Mitutoyo OPC Server One or more Serial Ports The diagram shows that multiple OPC compliant client applications can communicate with an OPC server simultaneously Using DCOM client and server software programs can be configured to run on the same computer node or be distributed across a network of computers OPC servers provide a common view of automation information managed by the system for which the server was written The GagePort Mitutoyo OPC Server allows an OPC client to read gage values from Mitutoyo gage hubs Others examples include an OPC server for a PLC providing access to PLC registers or an OPC server for a lab analyzer providing remote monitoring and control OPC clients use this common view of automation information in a vari
20. Enter a comma delimited list of ASCII values that define how the message terminates For example entering 13 10 would be the same as using the CRLF terminator NOTE This type of terminator can be used to strip extra characters from the message Since the custom terminator is stripped from the message before it is sent to the OPC client you can specify trailing characters in the message that you want stripped off Ignore First xxx This option allows any number of prefixed characters to be stripped from the message before it is sent to the OPC client OK Save the serial port settings to the document and close the COM Port Properties dialog box NOTE Important This does not save the document to disk Be sure to use the File Save or File Save As menu options to permanently save any changes to an xml configuration file Cancel Close to the COM Port Properties Dialog without saving the changes Y Server is Running Server is Running is a checked toggle type menu option When the GagePort Mitutoyo OPC Server is launched by an OPC client it runs hidden from view and the serial port monitors are automatically started When the OPC server is run interactively the serial port monitors are not automatically started By selecting this menu option a check mark appears next to it and the serial port monitors are started As gage devices send data to the serial ports the Value column in the List View will be updated to reflect these new v
21. GFK 2024 Introducing OPC Servers About OPC Servers An OPC Server provides a standards based interface to the some form of run time data The data may come from a specific physical device like a PLC or from an HMI or Distributed Control System The OPC Server conforms to the OLE for Process Control OPC 2 0 Data Access standards OPC is a technology standard initially developed by a group of automation industry companies and now managed by the not for profit organization called the OPC Foundation The standard was developed to provide a common de coupling mechanism for automation system software components OPC provides for simpler integration of automation software components from multiple vendors Fundamentally the OPC standard defines two software roles OPC clients and OPC servers In general clients are consumers of automation information and servers are producers of the same information The OPC standard further classifies automation information transactions as follows Data Access Manages the exchange of run time process information including quality and timestamps between clients and servers Alarm and Event Handling Manages the exchange of event and alarm information Historical Data Access Manages the exchange of historical process information The GagePort Mitutoyo OPC Server described here unless otherwise noted provides support for the Data Access sub set of the OPC specification OPC leverages Microsoft s
22. Handling OPC standard 1 1 All 3 6 OPC Server trace logging 4 3 Architecture OPC specification 1 2 Authentication DCOM Security 5 2 Authorization DCOM Security 5 2 Automation Supported interfaces 1 6 B Blobs And GagePort Mitutoyo OPC Server 1 6 Browser OPC interface support 2 6 C Client Connections OPC client statistics 4 5 Client Groups OPC client statistics 4 5 Client Groups and Client Items OPC runtime statistics 4 6 Client Items OPC client statistics 4 5 Clients Registry settings for off node 5 12 Coercion Data type 2 4 Columns In OPC Server window 3 2 GFK 2024 Index COM Port Properties Dialog Box Device Settings 3 4 Fields 3 3 Message Terminator 3 4 Number of COM Ports 3 4 Port Settings 3 4 Showing Properties 3 4 COM Program ID 1 5 COM DCOM And OPC standard 1 1 Benefits with GagePort Mitutoyo OPC Server 1 3 GagePort Mitutoyo OPC notes 1 4 Configuration When for GagePort Mitutoyo OPC notes 1 4 Connect 3 6 OPC Server trace logging 4 3 Connection GagePort Mitutoyo OPC notes 1 4 Convention Naming OPC item 2 1 Convert Mitutoyo OPC Server data type 2 4 Custom Programs OPC client server architecture 1 2 D Data Access OPC standard 1 1 Supported custom interfaces 1 5 Data Access Automation Interface Standard 1 5 Data Access Custom Interface Standard 1 5 Data Types Coercion 2 4 Convert 2 4 For simple devices 2 4 GagePort Mitutoyo OPC Server 2 4 VARIANT 2 4 Ind
23. IEEE floating point value sometimes called a REAL value MIG2 VT_R4 This is a four byte IEEE floating point value sometimes called a REAL value SIMPLE device types VT_BSTR variant type This is a String value Data Type Coercion To ensure the highest throughput of point values through the GagePort Mitutoyo OPC Server to an OPC Client the client should always request the canonical data type of an attribute Example The following table shows data types that should be requested based on the value source with example variant types Client Requests Should request Values from a the values as Variant Type GPFP gage hub Four byte REAL VT_R4 MIG2 gage hub Four byte REAL VT_R4 SIMPLE serial device Strings VT_BSTR By requesting a point in canonical form the OPC Server does not have to coerce or convert between the data type stored internally and the data type requested by the OPC client The OPC Server provides coercion support for all non array OPC items The OPC Server utilizes standard Microsoft coercion support routines A drawback to relying on coercion 1s the penalty of extra processing overhead required for each transaction However relying on coercion in the OPC Server may simplify the OPC client or provide the user with the ability to select the data type most applicable CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 GFK 2024 GagePort Mitutoyo OPC Server Timestamps OPC Item Timestamp Applied
24. OPC Server resources See the section GagePort Mitutoyo OPC Server Runtime Statistics in the Using the GagePort MITUTOYO OPC Server Troubleshooting Tools chapter for more information Introducing OPC Servers 1 7 Using the GagePort Mitutoyo OPC Server Naming Convention About the GagePort Mitutoyo OPC Item Naming Convention OPC Client applications reference GagePort gage values using item IDs Items IDs uniquely reference a gage point value Item IDs are constructed by using a client browse session or by explicitly typing the Item ID string This chapter defines the syntax of Item IDs supported by the GagePort Mitutoyo OPC Server This OPC Server supports one unique syntax form The form is always three levels deep and separated by periods Note The GagePort Mitutoyo OPC Server allows only one gage hub or simple device per local serial port Multi drop serial configurations are not supported This limitation is expressed in the supported Item ID syntax GFK 2024 2 1 GagePort Mitutoyo Item ID Syntax The Item ID syntax is as follows Each field is described below PORTID DEVICETYPE PORTNUM Field Description PORTID The ID of the local serial port e g COM1 or COM2 DEVICETYPE The type of device tied to the serial port This can be one of three values Value For a GPFP GagePort or FlexPort gage hub MIG2 Mitutoyo MIG2 gage hub SIMPLE Simple serial device PORTNUM The hub port where the gage is tied in For GPFP an
25. alues Selecting this menu option a second time will stop the serial port monitors Note Configuration changes made while the serial port monitors are running will not be honored until the server is stopped and then started again Using the GagePort Mitutoyo OPC Server User Interface 3 5 Trace Menu in OPC Server Window The OPC Server window Trace menu has the following selections Off Select this option to disable OPC connection trace logging The trace log file is closed Connect Select this option to enable OPC connection trace logging and to set the level of tracing to capture server activation events and client connect disconnect events Group Select this option to enable OPC connection trace logging and to set the level of tracing to capture OPC group creation deletion and modification events Item Select this option to enable OPC connection trace logging and to set the level of tracing to capture OPC item transaction events read write subscription updates All Select this option to enable OPC connection trace logging and to set the level of tracing to capture all Connect Group and Item transaction events Set Trace File Select this option to specify the filename used for logging OPC client server conversation information While trace logging is on all client server conversation information is appended to this file Trace logging is enabled by selecting one of the trace levels from the Trace menu option
26. ame computer node where the physical devices are attached However the OPC client application can be located on the same node or on another node visible through a network The ability to distribute OPC clients and servers across multiple platforms is one of the key benefits of COM DCOM technology Mitutoyo GagePort Devices Mitutoyo GagePort OPC Server COM DCOM OPC Client Application GFK 2024 Introducing OPC Servers 1 3 Reviewing Notes about the GagePort Mitutoyo OPC Server An OPC client attempts to connect to the GagePort Mitutoyo OPC Server If the OPC server process does not exist COM DCOM services attempt to activate it Upon successful activation of the OPC server the OPC client begins interacting with the OPC server to create server group and item objects If the OPC server object is already active COM DCOM returns a reference to the OPC server process Only one OPC server process can exist on a single computer node at a time When the last OPC client disconnects from the OPC server the OPC server will automatically terminate In the event that an OPC client does not disconnect gracefully COM DCOM garbage collection algorithms will automatically clean the OPC client references this can take several minutes Once the references are cleaned up the OPC server will terminate When the GagePort Mitutoyo OPC Server is activated by COM or DCOM it runs as a resident process that does not
27. configured to run interactively in order to access trace logging menu options Note Messages written to the trace log assume that the user is familiar with the OPC Foundation Data Access specification Interpreting the Trace Log The trace log is composed of a series of messages Each message logs a single OPC client server event A message is prefaced with a local machine date and time stamps and the source of the trace message Note The date time and source are not shown in the following sample trace log for the purposes of clarity The sample trace log illustrates the sequence of messages logged with the trace level set to All The OPC client initiated the following sequence of events note that the OPC client used to generate the log is Data Access 1 0A compliant 1 The OPC client connected to the GagePort Mitutoyo OPC Server 2 The client created an OPC group and called it Groupl The client created two advise sinks for Group for Receiving subscription notification callbacks i e unsolicited updates from server for all items in Groupl Receiving asynchronous write complete callbacks i e notification from the OPC Server when an asynchronous write operation completed 3 The client creates a second OPC group called Group2 with the similar advise sinks as Groupl 4 The client added an OPC item to Group called COM1 SIMPLE VALUE Immediately the OPC Server began reporting to the client data change notifications
28. curity is unique to DCOM The DCOM framework provides the ability for an OPC client to access the GagePort Mitutoyo OPC Server object If the OPC server object is installed on another computer node then the framework launches or activates the OPC server if it already not running on behalf of the client Activation permission checking works the same as authorization permission checking An authenticated client s user identity is checked against the OPC server s ACL for launch permissions Activation permissions for the GagePort Mitutoyo OPC Server are setup using DCOMCNFG Note Activation services are not supported by Windows NT 98 2000 DCOM Users must manually launch the GagePort Mitutoyo Server on these operating system platforms Launch Identity DCOM Security Most often the GagePort Mitutoyo OPC Server is configured to run as a background process i e non interactive mode with the OPC Server starting and stopping as OPC clients connect and disconnect The OPC server must be given a user identity under which to run i e administrator account the current interactive user or a special account setup for the OPC server The launch identity for the GagePort Mitutoyo OPC Server is specified using the DCOMCNFG utility CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 GFK 2024 Tools for Configuring DCOM Security Note It is assumed that reader can configure user accounts either on a local machine or in a domain environment a
29. d MIG2 device types this should be a value between 01 and xx where xx is the number of ports configured for the hub For SIMPLE devices this value must be VALUE GagePort Mitutoyo OPC Server Pre Defined Item ID s The GagePort Mitutoyo OPC Server has several pre defined Item ID s used for referencing server performance statistics The Item ID for each statistic is listed below An OPC client can reference a statistic to monitor the performance of the OPC Server Refer to the section Runtime Statistics for more information on working with the statistics Note Statistic Item IDs follow the same naming convention as a device point The statistics are assigned to a fictitious serial port called STATISTICS STATISTICS CLIENTS VALUE Displays the number of OPC clients currently connected to the CIMPLICITY HMI OPC Server STATISTICS GROUPS VALUE Displays the number of OPC groups currently configured in the OPC Server STATISTICS ITEMS VALUE Displays the number of OPC item references currently configured in the OPC Server Note that an item may appear in more than one group or be referenced by more than one OPC client Each reference is counted in the statistic STATISTICS READS VALUE Displays the number of synchronous and asynchronous read transactions performed by the OPC Server in the last sample period A read transaction is composed of one or more items 2 2 CIMPLICITY HMI GagePort Mitutoyo OPC Server J
30. eing removed This value can not be less than one At least one serial port must be configured Showing Properties Select the serial port to be configured Port Settings Device Settings and Message Terminator controls will update to reflect the configuration of the selected serial port This is a navigation tool for the dialog box not an actual stored property Port Settings These are the standard serial port configuration options Baud Rate The Baud Rate for communication with the device Parity The Parity for communication with the device Data Bits The Data Bits for communication with the device Stop Bits The Stop Bits for communication with the device Device Settings The type of device tied to the serial port No Device Use this option if there is no device tied to this serial port For example if four ports are being configured COM 1 through COM 4 but there is no device on COM 3 use this option to indicate this GPFP Hub Use this option to indicate there is a GagePort or a FlexPort hub tied to this serial port Use the spinner control to select the number of ports on the hub MIG2 Hub Use this option to indicate there is a Mitutoyo MIG2 hub tied to this serial port Use the spinner control to select the number of ports on the hub Simple Serial Device Use this option to indicate there is a Simple serial device tied to this serial port such as a bar code reader The OPC server assumes this device will send ASCII
31. em 2 1 New File menu selection for OPC Server window 3 2 Number of COM Ports 3 4 O Off 3 6 Off node Clients Registry settings for 5 12 OPC Client Architecture specification 1 2 Minimal DCOM configuration 5 11 Runtime statistics OPC Client Server interaction 4 6 Statistics maintained 4 5 OPC Client Server Interaction Client groups and client items 4 6 Reads Transactions Per Period 4 6 Subscriptions 4 6 Writes Transactions Per Period 4 6 OPC Connection Trace Logging 4 3 OPC Item ID syntax 2 2 Naming convention 2 1 Pre defined D s 2 2 Quality 2 5 GFK 2024 Index STATISTICS CLIENTS VALUE 2 2 STATISTICS EVENTS VALUE 2 3 STATISTICS GROUPS VALUE 2 2 STATISTICS ITEMS VALUE 2 2 STATISTICS PERIOD V ALUE 2 3 STATISTICS READS VALUE 2 2 STATISTICS WRITES VALUE 2 3 Timestamps 2 5 OPC Server About 1 1 Architecture specification 1 2 Columns in window 3 2 Features for GagePort Mitutoyo 1 4 File Menu in window 3 2 Runtime statistics 4 5 Specification compliance 1 5 OPC Specification Client server architecture 1 2 OPC Standard 1 1 Open DCOM dialog box 5 3 Open File menu selection for OPC Server window 3 2 Overview GagePort Mitutoyo OPC server 1 3 GagePort Mitutoyo OPC Server user interface 3 1 OPC client server architecture 1 2 OPC Server 1 1 P Port Properties Edit menu selection for OPC Server window 3 3 Port Settings 3 4 PORTID 2 2 PORTNUM 2 2 Program ID COM 1 5 Property Gage Values GagePort Mitutoyo OPC S
32. erver 1 2 Q Quality GagePort Mitutoyo OPC Server 2 5 R Read Transactions Per Period OPC client statistics 4 5 Reads Transactions Per Period OPC runtime statistics 4 6 Registry Off node clients 5 12 Resident Process GagePort Mitutoyo OPC notes 1 4 Index iii Restrict Access of OPC Clients DCOM security guidelines 5 11 Run DCOMCNEG 5 3 Runtime OPC Server statistics 4 5 S Save As File menu selection for OPC Server window 3 2 Save File menu selection for OPC Server window 3 2 Security About DCOM 5 1 Configure DCOM 5 3 Serial Device GagePort Mitutoyo OPC Server feature 1 4 Serial Port GagePort Mitutoyo OPC Server feature 1 4 Server is Running Edit menu selection for OPC Server window 3 5 Settings Important DCOMCNFG for GagePort Mitutoyo 5 7 Important DCOMCNEG for OPC Client 5 10 Setup OPC Server installation interface 3 1 Showing Properties 3 4 Specification Compliance OPC Server 1 5 Specifications COM Program ID 1 5 Supported automation interfaces 1 6 Supported data access interfaces 1 5 Statistics Maintained about the OPC Client 4 5 OPC Server runtime 4 5 Runtime for OPC Client Server interaction 4 6 STATISTICS CLIENTS VALUE Pre defined item ID 2 2 STATISTICS EVENTS VALUE Pre defined item ID 2 3 STATISTICS GROUPS VALUE Pre defined item ID 2 2 STATISTICS ITEMS VALUE Pre defined item ID 2 2 STATISTICS PERIOD VALUE Pre defined item ID 2 3 STATISTICS READS VALUE Pre defined item ID
33. ested OPC group update rates are small for groups with rapidly changing values If subscription updates are not occurring when OPC items are known to be changing then there may be a DCOM security authentication problem on the computer hosting the OPC client application The security on this node may not be configured to allow the GagePort Mitutoyo OPC Server to post subscription updates via callbacks CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 GFK 2024 Configuring the GagePort Mitutoyo OPC Server DCOM About DCOM Security The GagePort Mitutoyo OPC Server is implemented as a Microsoft COM Component Object Model object DCOM Distributed COM provides the framework and the services required to deploy COM objects in a distributed environment One of these services 1s security DCOM security leverages the underlying Windows operating system security services Those familiar with Windows NT 98 2000 security issues will find that there are a few security issues unique to the distributed environment To better understand the security issues that can affect a connection between an OPC client and the GagePort Mitutoyo OPC Server this chapter provides an overview of DCOM related security The topic of DCOM security and Windows security for that matter is extensive and can be confusing There are several books dedicated to these topics alone What is presented here is a synopsis of the issues that affect OPC client server interaction
34. ety of ways This includes providing human machine interfaces historical data logging and data mirroring services Users can write their own custom programs in languages such as Visual Basic or Visual C Desktop programs can reference OPC server information For example users can write VBA scripts in Microsoft Excel CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 GFK 2024 About the GagePort Mitutoyo OPC Server The GagePort Mitutoyo OPC Server is as an out of process server compliant with the OPC Data Access V2 0 specification The OPC Server allows OPC clients to read and subscribe to changes of GagePort Mitutoyo FlexPort and MIG2 gauge hub devices tied to the local serial ports It also supports many simple serial devices such as bar code readers tied directly to the local serial ports The GagePort Mitutoyo OPC server is installed on the node that has the Mitutoyo devices connected to its local serial ports It is recommended that the GagePort Mitutoyo OPC server be installed under Windows NT 4 0 in order to leverage all of the advantages of Microsoft COM DCOM technology Of particular advantage are the DCOM security settings and the DCOM launch services available only to NT4 0 These features make setup and maintenance of the OPC server easier The following diagram illustrates the GagePort Mitutoyo OPC Server interacting with physical devices through the node s local serial ports The OPC server must always run on the s
35. ex i DCOM About 5 1 Activation 5 2 And OPC standard 1 1 Authentication 5 2 Authorization 5 2 Benefits with GagePort Mitutoyo OPC Server 1 3 Configuration for client connections 5 11 Configuration guidelines 5 11 Configure security 5 3 GagePort Mitutoyo OPC notes 1 4 Launch identity 5 2 OPC Server architecture 1 2 Run DCOMCNFG 5 3 DCOMCNFG Run 5 3 Settings for GagePort Mitutoyo OPC Client 5 10 Settings for GagePort Mitutoyo OPC Server 5 7 Default Authentication Level DCOM security guidelines 5 11 Device Data Types 2 4 Limit with GagePort Mitutoyo OPC Server 2 1 Device Settings 3 4 DEVICETYPE 2 2 Disconnects GagePort Mitutoyo OPC notes 1 4 E Edit Menu for OPC Server Port Properties 3 3 Server is Running 3 5 Enable GagePort Mitutoyo OPC Server Activation Security DCOM guidelines 5 11 Event Handling OPC Standard 1 1 Exit File menu selection for OPC Server window 3 3 F Features GagePort Mitutoyo OPC Server 1 4 OPC Server user interface 3 1 File Menu for OPC Server Exit 3 3 MRU 3 3 New 3 2 Open 3 2 Save 3 2 Save As 3 2 Flags Quality for GagePort Mitutoyo OPC Server 2 5 G Gage Hub Limit with GagePort Mitutoyo OPC Server 2 1 GagePort Mitutoyo OPC Client Important DCOMCNEG settings 5 10 GagePort Mitutoyo OPC Server About 1 3 Features 1 4 Important DCOMCNEG settings 5 7 Interpreting the trace log 4 3 Notes 1 4 Registry settings for off node clients 5 12 Restrict access of OPC clients guideline 5
36. hed by an OPC client It is very important that Yes is selected at least once before the server is launched by an OPC client Selecting Yes causes the OPC server to store the path to this file in the registry The server then uses this configuration file when it is launched by an OPC client If no Startup File has been stored in the registry then the default configuration will be used This is most likely not the desired result MRU The Most Recently Used files appear next on the File menu This is a short list of configuration files that have most recently been opened Exit Terminates the GagePort Mitutoyo OPC Server If configuration has been modified but not saved the user is notified and given the option to save the configuration Edit Menu in OPC Server Window GFK 2024 The OPC Server window Edit menu has the following selections Port Properties Select this option to configure the devices tied to the serial ports of the node where the GagePort Mitutoyo OPC Server is running This option opens the COM Port Properties dialog box fm 9600 3 NoPaty I Using the GagePort Mitutoyo OPC Server User Interface 3 3 Number of COM Ports Select the number of serial ports that will be configured This directly affects the number of items in the Showing Properties for Port combo box If this value is lowered a warning is displayed that configuration will be lost for the ports b
37. his request may have been blocked by DCOM security DCOM security authorization problems This can occur if a client can connect to the OPC Server but cannot access server objects For example the client can connect to the OPC Server but cannot create an OPC group Validate the OPC items requested by a client and verify the item ID syntax View the sequence of OPC interface requests to verify the correct operation of a client Verify that a client gracefully disconnects Troubleshoot subscription problems i e callbacks into the client by the OPC Server when data changes are reported In this case the client is able to perform synchronous and asynchronous read and write requests but cannot receive subscription updates This may be due to a DCOM security authentication problem on the client machine The client is unable to authenticate the OPC server See how a client organizes OPC groups and OPC items within groups GFK 2024 GagePort Mitutoyo OPC Server Runtime Statistics GFK 2024 The GagePort Mitutoyo OPC Server maintains runtime statistics to diagnose and correct performance problems Typically performance problems are caused by how an OPC client application organizes and uses the resources supplied e g group objects and item objects by an OPC server The OPC Server maintains statistics about OPC client server interactions These statistics are viewable from an OPC client by reading pre defined item IDs from GagePort Mi
38. how to configure DCOM security for the GagePort Mitutoyo OPC Server Related Publications GFK 2024 For more information refer to these publications CIMPLICITY HMI Plant Edition User s Manual GFK 1180 iii Contents Introducing OPC Servers 1 1 PNOOUE OP CCU V CES pA AES E AE 1 1 About the GagePort Mitutoyo OPC Servet cccccccccccccccccscsssssssssssseseeseeecceeeeeeeeeeaaaaeeeenseeeeees 1 3 Reviewing Notes about the GagePort Mitutoyo OPC Server cccceeeeeeeeeees 1 4 Reviewing GagePort Mitutoyo OPC Server Features cccccccececeeeeeeeeeeeeeeeees 1 4 Reviewing GagePort Mitutoyo OPC Server Specifications ccccccecceeeeeeeeeeeeees 1 5 Reviewing GagePort Mitutoyo OPC Server Troubleshooting Tools 1 7 Using the GagePort Mitutoyo OPC Server Naming Convention 2 1 About the GagePort Mitutoyo OPC Item Naming Convention eeeeeeeeeeeeeeeeennnnnnnnnnnnnennnn 2 1 Gace Port Mitutoyo Temi Sy ntan ana e A A 2 2 GagePort Mitutoyo OPC Server Pre Defined Item ID S ee ececcccecccceeeeeeeeeeeeeeeeeaeeeeeees 2 2 GagePort Mitutoyo OPC Server Data Types ccccccccccccccccceessssseeeseeeeceeeeeeeeeseeeeeaaaaeeeeenes 2 4 Data Type OCI OM sr ee 2 4 GagePort Mitutoyo OPC Server Timestamp cccccccccccceeeeessssseeeseeeeceeeeeeeeeeeeeeeeaaaeeeeeees 2 5 GagePort Mitutoyo OPC Server Item Quality cccccnsssssssseseeeeeeeeeeeeeeeeeeeeeaaeaeeeeeees 2 5 OPC Brow
39. lient DCOM security settings to get up and running quickly Effectively the settings outlined here turn off all security authentication If authentication is disabled then by default all permission checking for authorization and activation security is disabled Any OPC client application can use GagePort Mitutoyo OPC Server objects and the OPC server can call back into the OPC client application Guidelines For DCOM Configuration This section presents general guidelines for tightening DCOM security settings for GagePort Mitutoyo OPC Server OPC client interactions This list of guidelines is not exhaustive It is assumed the reader is familiar with Window security issues and DCOM security in particular The issue of security in an automation environment is currently being addressed by an OPC Foundation working committee Note Whenever possible try to use DCOMCNFG settings that are custom to the GagePort Mitutoyo OPC Server This has two benefits one as the OPC server is setup for initial use the behavior of other COM objects installed on the same computer node is not affected and two future changes to other COM object DCOM security settings do not affect the behavior of a correctly operating GagePort Mitutoyo OPC server Enable authentication security by setting the DCOMCNFG Default Authentication Level at a level of at least Connect If you are running DCOMCNEG supplied with SP4 then ensure that the Authentication Level
40. nd assign group memberships for the user accounts Steps to configure DCOM security include Step 1 Configure DCOMCNFG Step 2 Do minimal DCOM configuration for client connections Step 1 Configure DCOMCNFG The GagePort Mitutoyo OPC Server relies on the DCOMCNFG commonly referred to as dee com config utility supplied with the Windows operating system The OPC server does not programmatically initialize DCOM security The following tasks provide an overview of frequently used DCOM settings However the settings you choose depend on your network configuration needs and required level of security Task 1 Open the Distributed COM Configuration Properties dialog box Task 2 Double check default DCOM settings Task 3 Set important DCOMCNEG settings for the GEF GagePort OPC Server Task 4 Set important DCOMCNFG settings for an OPC client Step 1 Configure DEOMCNFG Task 1 Open the Distributed COM Configuration Properties Dialog Box J1 Task 1 Open the Distributed COM Configuration Properties dialog box Option 1 from an MS_DOS window 1 Open an MS_DOS window 2 Type dcomenfg at the prompt Option 2 from Windows Start menu 1 Click Start on the Windows task bar 2 Select Run on the Start menu The Run dialog box opens 3 Type dcomenfg in the Open field Result The Distributed COM Configuration Properties dialog box opens GFK 2024 Configuring the GagePort Mitutoyo OPC Server DCOM 5 3 5 4 The utility is composed of
41. roupl Invoked V1 0 data change callback with timestamps for 2 item s Group Groupl Invoked V1 0 data change callback with timestamps for 2 item s Group Groupl added item COM2 GPFP 02 handle 18158672 Group Groupl Invoked V1 0 data change callback with timestamps for 3 item s Group Groupl Invoked V1 0 data change callback with timestamps for 3 item s Group Group2 client disconnected V1 0 OPCSTMFORMATDATATIME advise sink Group Group2 client disconnected V1 0 OPCSTMFORMATWRITECOMPLETE advise sink Removed OPC Group Group2 Group Groupl Invoked V1 0 data change callback with timestamps for 3 item s Group Groupl Invoked V1 0 data change callback with timestamps for 3 item s Group Groupl removed item COM1 SIMPLE VALUE handle 18155968 Group Groupl removed item COM2 GPFP 01 handle 18157088 Group Groupl removed item COM2 GPFP 02 handle 18158672 Group Groupl client disconnected V1 0 OPCSTMFORMATDATATIME advise sink Group Groupl client disconnected V1 0 OPCSTMFORMATWRITECOMPLETE advise sink Removed OPC Group OPC Client disconnected Group1 Using the Trace Log Following is a sample list of problems that can be diagnosed with the trace log The list is not exhaustive It is intended as a guide only 4 4 CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 Client connection problems Use the log to verify if the OPC Server received the client s request to connect T
42. s DCOM security topics can be broken down into four areas for definition purposes Authentication Authorization Activation and Launch identity Note Activation security is unique to DCOM Authentication DCOM Security Authentication security ensures that the interaction between an OPC client and the GagePort Mitutoyo OPC Server is legitimate Authentication security for DCOM is an extension of the standard Windows operating system security which itself is layered upon secured RPC remote procedure call Authentication poses the question Is the OPC client who it says it 1s and Is the OPC server who it says it is The user configures the level of authentication required which specifies how often this question is posed Each more secure level places extra processing overhead on communications GFK 2024 5 1 5 2 between the OPC client and the OPC server A client and server negotiate to the highest level of authentication when the configured authentication levels differ For example authentication can be required only at OPC client connection time to a server level connect Once a client is connected and is authorized to use the OPC Server all interactions are performed without further authentication As another example authentication can be required at the packet level level Packet Privacy with each packet being fully encrypted The choice of the authentication level is dependent on the securi
43. s no obligation of notice to holders of this document with respect to changes subsequently made GE Fanuc Automation makes no representation of warranty expressed implied or statutory with respect to and assumes no responsibility for the accuracy completeness sufficiency or usefulness of the information contained herein No warranties of merchantability or fitness for purpose shall apply CIMPLICITY is a registered trademark of GE Fanuc Automation North America Inc Windows NT Windows 98 and Windows 2000 are registered trademarks of Microsoft Corporation This manual was produced using Doc To Help by WexTech Systems Inc Copyright 2001 GE Fanuc Automation North America Inc ii CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 GFK 2024 Preface Contents of this Manual Chapter 1 Introducing OPC Servers Provides an overview of the GagePort Mitutoyo OPC Server architecture features and specifications Chapter 2 Using the GagePort Mitutoyo OPC Server Naming Convention Describes the GagePort Mitutoyo OPC naming conventions including syntax data types timestamps and server quality Chapter 3 Using the GagePort Mitutoyo OPC Server User Interface Describes the OPC Server window columns and menu selections Chapter 4 Using the GagePort MITUTOYO OPC Server Troubleshooting Tools Describes the available troubleshooting tools and how to use them Chapter 5 Configuring the GagePort Mitutoyo OPC Server DCOM Describes
44. se Interface SUPPO ass einstieg A Neon 2 6 Using the GagePort Mitutoyo OPC Server User Interface 3 1 OPE WindsW MenU OplL ons nee euer 3 1 Eile Menu 1nOPC Server Window ee RS 3 2 Edit Meni 1n OPE Server W 1nd OW ae 3 3 Trace Menu 1m OPC Server Window ara 3 6 View Menu in OPC Server Window ccccccssseeeccceeceeeeeeeeaeaeeeseseeeeeeeeeeeeeeeeeaaaas 3 6 Help Menu in OPC Server Window csssssseeececeeeeeeeeeeaaaaaeeesssseeeeeeeeeseeeeaaaas 3 6 Using the GagePort Mitutoyo OPC Server Troubleshooting Tools 4 1 About the GagePort Mitutoyo OPC Server Troubleshooting Tools eee 4 OPC Connection Trace os oie ana a a 4 3 Interpreine the Trace L O7 u een 4 3 sins Ihe Trice LoS ansehe 4 4 GagePort Mitutoyo OPC Server Runtime Statistics ueeeeessssssnsssnnnnnnnnnnnnennnnnnneneeneneeeenennn 4 5 Using the Runtime Statisties seinio aeaa eine 4 6 Configuring the GagePort Mitutoyo OPC Server DCOM 5 1 ADOULDCOM Security naeh 5 1 Tools for Confisurine DCOM Security ipic aor unica ual Dacebeh aaea 5 3 Step i Contireure DE OME INE G een Bias 5 3 Step 2 Do Minimal DCOM Configuration for Client Connections 0 5 11 Guidelines For DCOM Configuration ccccccccccceeccceeceeeeeesseseseeeceeeeeeeeeanaas 5 11 Registry Settings for Off node Chen aa aa ea I a aaa 5 12 GFK 2024 Contents v Contents vi CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001
45. sion is dependent upon how the OPC client is implemented The OPC server only provides the namespace information The OPC client is responsible for organizing and presenting the namespace Linde OPE Fite a STATI OO FERDO Lt vague Ei GLENS LT waLuE La GROUPS ft MALLE 3 CO ITER Lt VALUE Co AS ET ALLE J J WHITE CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 GFK 2024 Using the GagePort Mitutoyo OPC Server User Interface OPC Window Menu Options The primary role of the GagePort Mitutoyo OPC Server is to interact with OPC clients programmatically Thus no human user interface is required to satisfy the primary function of the OPC Server For this reason when the server is launched by an OPC client it runs invisibly as a resident process However the OPC Server does have a simple user interface when run interactively that is used for setting up the OPC Server for an installation and for accessing some of the troubleshooting tools provided by the OPC Server The user interface provides the following features Configuration of the devices tied to the serial ports and the saving and opening of the XML files that hold these settings Configuration of the Startup File This is the XML configuration file used when the server is started by an OPC client Trace logging diagnostic tool configuration United GEFG age Posi ei File Ed Iron View Help ia Be Ff Achte bes ler
46. stributed COM on this computer Set the Default Authentication Level to satisfy the network security requirements of the installation Windows NT 4 0 SP4 allows the Authentication Level to be customized for the OPC Server The DCOMCNEFG SP3 utility provides this feature at the default level only Set the Default Impersonation Level to Identify Die LUGS Lore alter Froese bi Ea Appain Daie Poopeten mia Security Cafan Frateca F Frati Dekade DH oni Gr oode Graphic displays P default settings 7 Erbe DOH beii Gaietan thei diiad Dairi Dtebted CO cirie peer Deland Cater ioe Lived Coraci ka Configuring the GagePort Mitutoyo OPC Server DCOM 5 5 5 6 DCOMCNFG Default Security If customized access permissions and launch permissions were not specified on the Security tab in the GEF GagePort OPC Server Properties dialog box See page 58 DCOM security for the OPC Server uses the user and or group settings ACL assigned under Default Access Permissions and Default Launch Permissions Distributed COM Configuration Properties a E J CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 GFK 2024 GFK 2024 11 Step 1 Configure DEOMCNFG Task 3 Set Important DCOMCNFG Settings for the GEF GagePort OPC Server This section lists the DCOMCNFG settings that are relevant for configuring the DCOM security for the GagePort Mitutoyo OPC Server The OPC Server can be configured to use default security
47. strings to the serial port in an unsolicited manner The value is delivered to the OPC client as a string VT_BSTR type Message Terminator Define the structure of the data being received by the OPC server CR Only This option indicates the message sent by the device ends with a Carriage Return character ASCII 13 LF Only This option indicates the message sent by the device ends with a Line Feed character ASCII 10 CRLF This option indicates the message sent by the device ends with a Carriage Return character ASCII 13 followed by a Line Feed character ASCII 10 3 4 CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 GFK 2024 GFK 2024 None fixed Length This option indicates that the message has no terminating character s and therefore must be fixed length Use the spinner to indicate the number of characters that make up the message Note There is a special case use of this option for simple devices that send variable length not terminated messages If the number of characters is set to O this special case will take effect In this case the OPC server will make use of the serial port Timeout value by using the first timeout after a series of characters to indicate the end of the message This is very useful for bar code readers that do not terminate the messages they send but may be used to read codes of varying lengths Custom This option indicates that a custom message terminator will be defined
48. time statistics can provide an initial indication of client server interaction problems Use the statistics to identify the general problem and then use the OPC Connection Trace Logging to identify the specific problem Client Groups and Client Items Client groups and Client items provide a rudimentary indication of how an OPC client organizes the group and item object resources supplied by the GagePort Mitutoyo OPC Server Some OPC client applications initially create a large number of OPC groups and disable the subscription updates until needed While this will not cause CPU loading problems it could cause the initial connection and setup time with the GagePort Mitutoyo OPC Server to be slow or for a large amount of memory to be used by the OPC Server Reads Transactions Per Period Write Transactions Per Period Reads transactions per period and write transactions per period provide information on the OPC Server loading For example a high Read Transactions Per Period or Write Transactions Per Period value may coincide with abnormally high CPU loading The client may be continuously performing a large number of device read or device write requests Note that cache reads are very efficient and do not typically cause significant CPU loading problems Subscriptions Subscriptions updates e g unsolicited updates of changed values and or quality information by an OPC server to an OPC client may cause high CPU loading when the OPC client requ
49. tutoyo OPC Server See the section Server Statistic OPC Items in the GagePort Mitutoyo OPC Server Information chapter for a list of the item IDs Following are the statistics that are maintained about the OPC Client Client Connections The number of OPC clients currently connected to the GagePort Mitutoyo OPC Server Client Groups The number of OPC groups for all clients currently configured in the OPC Server Client Items The number of OPC item references for all groups currently configured in the OPC Server The same item may appear in more than one group or be referenced by more than one OPC client Each reference is counted in this statistic Read Transactions Per Period The number of synchronous and asynchronous read transactions performed by the OPC Server in the last sample period A read transaction is composed of one or more items and may be a cache read or device read Write Transactions Per Period The number of synchronous and asynchronous write transactions performed by the OPC Server in the last sample period A write transaction is composed of one or more items Subscription Transactions Per Period The number of client subscription updates i e unsolicited updates to an OPC client performed by the OPC Server in the last sample period A single subscription update is composed of one or more items Using the GagePort Mitutoyo OPC Server Troubleshooting Tools 4 5 Using the Runtime Statistics The run
50. ty policies of the user In a multi node computing environment the security system on the computer node running the OPC server must be able to verify that the security ID of the OPC client is valid In a domain environment domain accounts must be validated In peer to peer environments matching local user accounts must be configured Authentication of an OPC client must be satisfied before authorization and activation permissions are checked If a client cannot be authenticated permission checking for the requested action is not performed Authorization DCOM Security Once an OPC client transaction has been authenticated DCOM security must determine if that OPC client is authorized to perform call level interactions with the OPC server COM DCOM technology allows OPC client applications to make programmatic calls across process and computer node boundaries This determination is made by looking at the ACL access control list for the OPC server COM object This ACL or list of users and or user groups for the OPC server is configured using the DCOMCNFG utility supplied with the Windows operation system See the section Tools for Configuring DCOM Security in this chapter for more information about DCOMCNFG If the OPC client s user identity is listed on the OPC server s access permissions ACL as a user or group member then the OPC client can access GagePort Mitutoyo OPC Server objects Activation DCOM Security Activation se
51. uly 2001 GFK 2024 GFK 2024 STATISTICS WRITES VALUE Displays the number of synchronous and asynchronous write transactions performed by the OPC Server in the last sample period A write transaction is composed of one or more items STATISTICS EVENTS VALUE Displays the number of client subscription updates i e unsolicited updates to an OPC client performed by the OPC Server in the last sample period A single subscription update is composed of one or more items STATISTICS PERIOD VALUE The currently configured sample period for calculating reads period writes period and subscriptions period statistics Using the GagePort Mitutoyo OPC Server Naming Convention 2 3 GagePort Mitutoyo OPC Server Data Types 2 4 The GagePort Mitutoyo OPC Server represents device point values in a canonical or baseline format This format or data type is compatible with Microsoft COM DCOM technology and is called a VARIANT data type As any Visual Basic programmer knows a VARIANT can hold several types of data usually according to what is assigned to it or how it is used The VARIANT data type is expressed by a constant that begins with VT_ Example VT_I2 means the variant holds a two byte signed integer VT _BOOL means it holds a boolean value etc The GagePort Mitutoyo OPC Server always returns the following variant types For Devices Variant Type always returned by GagePort Mitutoyo OPC server GPFP VT_R4 This is a four byte
52. via a callback into the client 6 The client proceeded to add two more points COM2 GPFP 01 and COM2 GPFP 02 7 Note that immediately after each new item was added the number of items reported in the callback to the client increased This is because the values are changing in the gages and being reported to the client at the requested OPC group update rate GFK 2024 Using the GagePort Mitutoyo OPC Server Troubleshooting Tools 4 3 OPC Client connected 8 The client then removed the OPC group Group2 Prior to doing this it disconnects the advise sinks previously setup 9 The client then deletes the OPC group Group1 First it removes the item references from the group and then it disconnects the advise sinks 10 Finally the client disconnects from the OPC Server Added OPC Group Groupl Group Groupl client connected OPCSTMFORMATDATATIME V1 0 advise sink Group Groupl client connected OPCSTMFORMATWRITECOMPLETE V1 0 advise sink Added OPC Group Group2 Group Group2 client connected OPCSTMFORMATDATATIME V1 0 advise sink Group Group2 client connected OPCSTMFORMATWRITECOMPLETE V1 0 advise sink Group Groupl added item COM1 SIMPLE VALUE handle 18155968 Group Groupl Invoked V1 0 data change callback with timestamps for 1 item s Group Groupl Invoked V1 0 data change callback with timestamps for 1 item s Group Groupl added item COM2 GPFP 01 handle 18157088 Group G
53. ystem protocols GO Gam mi OP Sec Propeta Gens Location Security idenaty Endpoints DCO Proiseoh anc andpentz Graphic displays default settings o a a T Magier bCOH ers Tha tytan defaults erde once Hat thee de rat mf DOM Gare are eredeceds ber the reach eal be ee Step 1 Configure DOOMCNFG Task 4 Set Important DCOMCNFG Settings for an OPC Client If the OPC client application is a COM object and does not initialize DCOM security programmatically then the DCOMCNEG utility must be used to specify the Access Permissions and the Authentication Level This is required for authenticating callbacks into the client by the OPC server DCOM Security on the OPC client computer node must not only authenticate the user identify of the OPC server but also must determine if the OPC Server is allowed to make calls on client owned objects Callbacks are invoked by the OPC server to provide subscription updates and completion notifications for asynchronous read and write operations If the OPC client application is not a COM object i e the OPC client application is not listed in DCOMCNFG then the DCOM security settings for Default Access Permissions and Default Authentication Level are applied CIMPLICITY HMI GagePort Mitutoyo OPC Server July 2001 GFK 2024 Step 2 Do Minimal DCOM Configuration for Client Connections The instructions in this section outline how to setup the GagePort Mitutoyo OPC Server and the OPC c

CIMPLICITY HMI GagePort Mitutoyo OPC Server

Contents

Download Pdf Manuals

Related Search

Related Contents