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DXA410 DAQOPC User`s Manual

1. Comm Failure Out of Service ojojoj N i 12 13 14 15 Limit Limit is yet another Quality code information that is added to the combination of Quality and Substatus Code Description 0 Not Limited 1 Low Limited 2 High Limited 3 Constant 3 8 IM 04L01B03 61E 3 2 OPC Interface Functions Data and Quality code The data from the DX DX P MV CxX is converted to the following Quality codes Data status Quality Substatus Limit Normal value Good Non specific Not Limited Positive overrange value Good Non specific High Limited Negative overrange value Good Non specific Low Limited Skip or computation Off Bad Out of Service Not Limited Error value Bad Sensor Failure Not Limited Unstable data value Bad Out of Service Not Limited Communication error Bad Comm Failure Not Limited Phenomenon Quality Substatus Limit The specified tag does not exist Bad _ Configuration Error Not Limited when re reading the attribute information or the tag never existed By assigning values other than normal values using the Configurator you can check the data from the DX DX P MV CX even without the Quality code Time Stamp Retrieves either the time of the DX DX P DX P MV CX or the time of the PC Using the Configurator you can change the destination from which to ret
2. 101 VT_BSTR Item Description Allows retrieval of the tag strings specified on the CX Example Furnace 1 102 VT_R8 High EU Allows the retrieval of the upper limit of the span 0 for loops that are turned OFF Example 105 103 VT_R8 Low EU Allows the retrieval of the low limit of the span 0 for loops that are turned OFF Example 5 6006 VT_I2 Decimal Point Allows the retrieval of the number of digits to the right of the decimal point when displaying values 0 for loops that are turned OFF Example 1 Specifying the data item ItemlD is specified as follows Device namelinternal loop RUN RUN CX Example DEVICE1 Loop2 RUN Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_12 2 5 VT_l4 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled IM 04L01B03 61E 3 27 suoljoun 19M3S Vd DdOOVG 3 2 OPC Interface Functions Specifying the data item MODE CX ItemID is specified as follows Device namelinternal loop MODE Example DEVICE1 Loop2 MODE Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_12 2 5 VT_l4 Item Access Rights Access level of it
3. VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_R8 5 VT_I4 Item Access Rights Access level of item Basic version 1 read only 100 VT_BSTR Advanced version 3 read write enabled EU Unit Allows retrieval of the engineering unit specified on the DX DX P MV CX Space for skipped channels and loops that are turned OFF Example C 102 VT_R8 High EU Allows the retrieval of the upper limit within the selectable range 0 for skipped channels loops that are turned OFF and alarms that are turned OFF Example 2 0000 103 6006 VT_R8 VT_I2 Low EU Allows the retrieval of the lower limit within the selectable range 0 for skipped channels loops that are turned OFF and alarms that are turned OFF Example 2 0000 Decimal Point Allows retrieval of the number of digits to the right of the decimal point when displaying alarm setpoint on the DX DX P MV CX If skip channels OFF loops or control loops are set to alarm OFF the value is 0 Example 2 IM 04L01B03 61E 3 23 suoljoung 19M3S Vd DdOOVA 3 2 OPC Interface Functions Specifying the data item SP CX ItemID is specified as follows Device namelinternal loop PID SP or external loop DEVICE1 Loop2 SP DEVICE1 Loop2 PID2 SP DEVICE1 Ext2 SP Example For Inter
4. 6003 VT_BSTR Input Range Allows the retrieval of range strings of measurement channels Example TC TypeK Specifying the tag number computation channel ItemID is specified as follows Device name computation channel Example DEVICE1 CH031 Cannot be registered in a group Property ID VARIANT type Description 101 VT_BSTR Item Description Allows retrieval of the tag strings specified on the DX DX P MV CX Example Furnace 1 Specifying the tag number communication input data There are no item properties that can be retrieved Cannot be registered in a group Specifying the tag number Control computation constant There are no item properties that can be retrieved Cannot be registered in a group Specifying the tag number COMMON There are no item properties that can be retrieved Cannot be registered in a group Specifying the tag number Batch There are no item properties that can be retrieved Only existing devices can be registered to groups Specifying the tag number Message There are no item properties that can be retrieved Only existing devices can be registered to groups 3 42 IM 04L01B03 61E 3 2 OPC Interface Functions Specifying the loop number ItemlD is specified as follows Device name loop number Example DEVICE1 Loop2 Cannot be registered in a group Property ID VARIANT type Description 101 VT_
5. 102 VT_R8 High EU Allows the retrieval of the upper limit within the selectable range 6000 Fixed 103 VT_R8 Low EU Allows the retrieval of the lower limit within the selectable range 0 Fixed Specifying the data item PIDx D CX ItemID is specified as follows Device name PID of the internal loop D Example DEVICE1 Loop2 PID3 D Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_12 2 5 VT_l4 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled 100 VT_BSTR EU Unit Allows retrieval of the engineering unit specified on the CX S Fixed 102 VT_R8 High EU Allows the retrieval of the upper limit within the selectable range 6000 Fixed 103 VT_R8 Low EU Allows the retrieval of the lower limit within the selectable range 0 Fixed 3 30 IM 04L01B03 61E 3 2 OPC Interface Functions Specifying the data item PIDx OH CX ItemlD is specified as follows Device name PID of the internal loop OH Example DEVICE 1 Loop2 PID3 OH Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_R8 5 5 VT_l4 Item Access Rights Access level of item Basic version 1 read only Advance
6. CX control loops only of the specified loop DEVICExx Loopx PID P Proportional band of the specified VT_R8 Read Write CX control loops only PID of the specified loop DEVICExx Loopx PID I Integral time of the specified PID VT_l2 Read Write CX control loops only of the specified loop DEVICExx Loopx PID D Derivative time of the specified PID VT_I2 Read Write CX control loops only of the specified loop DEVICExx Loopx PID OH Output high limit of the specified VT_R8 Read Write CX control loops only PID of the specified loop DEVICExx Loopx PID OL Output low limit of the specified PID VT_R8 Read Write CX control loops only of the specified loop 1 2 With the Advanced version data can only be written to the DX MV CX if a user with Administrator privilages is logged on Data cannot be written to the DX MV CX with the Basic version IM 04L01B03 61E 3 2 OPC Interface Functions ItemID Description Canonical Access datatype Rights Notes DEVICExx Loopx PID MR Manual reset value of the specified VT_R8 Read Write CX control loops only PID of the specified loop DEVICExx Loopx PID PO Preset output value of the specified VT_R8 Read Write CX control loops only PID of the specified loop DEVICExx Loopx PID DR Control direction setting of VT_l2 Read Write CX control loops only the specified PID of the specified loop DEVICExx Loopx PID H Hysteresis setting of
7. Specifiable tag Measurement computation channels and control loops Item names are AT1 AT2 ATS and AT4 Same as Item name ALARM For skip channels or channels with MATH turned OFF or when control mode is OFF or the analog retransmission loop is specified the value is O when alarms are turned OFF Item name ASP Specifiable tag Measurement and computation channels Item names are ASP1 ASP2 ASP3 and ASP4 For skip channels or channels with MATH turned OFF or when control mode is OFF or the analog retransmission loop is specified the value is O when alarms are turned OFF Item name SP CX only Specifiable tag Control loops and external loops The communication error values OVER values OVER values skip values error values and unstable data values are set to the values specified in the Configurator If control mode is OFF on the CX or for analog retransmission itis set to the skip value 3 12 IM 04L01B03 61E 3 2 OPC Interface Functions Item name OUT CX only Specifiable tag Control loops and external loops The communication error values OVER values OVER values skip values error values and unstable data values are set to the values specified in the Configurator If control mode is OFF on the CX itis set to the skip value Data can only be written with a CX Style2 or later Item name RUN CX of style number S2 or later only Specifiable tag Control loops Stop 1 Run 2 If control mode is O
8. belonging to the Administrator group 5 Insertthe setup floppy disk that you have just created into the floppy drive of the client PC 6 Run Setup exe on the setup floppy disk The OPC client is set up ZOPMKEXAFDC exe Setup exe gt PC DAQOPC Access Method from the Client Software The ProgID used in accessing DAQOPC from the client software is as follows Yokogawa ExaopcDADAQOPC1 2 10 IM 04L01B03 61E Chapter 3 DAQOPC DA Server Functions 3 1 Overview of the DAQOPC DA Server Function Data Access Method via the OPC Interface Through the OPC Interface the OPC client creates a group object in the server object and registers the process data to be accessed as an ItemID in the group object ItemIDs are registered in the form tag tag item Using this scheme you can specify the data acquisition rate for each group object You can also register the same ltemID in different group objects according to your application Server object Group object A Group object B ItemID1 ItemID3 ItemID1 ItemID3 ItemID2 ItemID4 ItemID2 ItemID4 In the example below two group objects Trend 1 and Report 1 are created in the server object A Device1 ch01 PV through ch04 PV are registered as ItemIDs in the Trend 1 group object Device1 ch01 PV and Device1 ch01 Alarm1 are registered as ItemIDs in the Report 1 group object Tr
9. uoneiedo OdOOVa D 2 2 Starting the Configurator and Setting Parameters Version Information Dialog Box The Version Information dialog box shows the following information Version information ProgID Serial number Basic Version nfor mation Advanced Version Version Information 2 8 IM 04L01B03 61E 2 3 Starting and Stopping DAQOPC Starting DAQOPC The DA server process automatically starts as abackground process when the Windows system is started At this point DAQOPC starts communications with the DAQSTATION according to the communication conditions that were specified using the Configurator Stopping DAQOPC The DA server process automatically stops when the Windows system is shut down IM 04L01B03 61E 2 9 uoneiado OdOOVa D 2 4 Setting Up the DAQOPC Client If you are using DAQOPC remotely from a PC that is connected to the network you must setup the DAQOPC client If you have not set up the DAQOPC client follow the procedure below to set up the software 1 Insert a formatted floppy disk into the floppy drive of the PC PC server in which you have installed DAQOPC 2 Onthe server PC run ZOPMKEXAFDC exe in the Program folder in the installation folder of the DAQOPC using a program such as Windows Explorer 3 Adialog box appears when an OPC client setup disk is created Click OK in the dialog box 4 Log onto the PC PC client in which to setup the OPC client using auser name
10. Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_R8 5 VT_l4 Item Access Rights Access level of item Basic version 1 read only 100 VT_BSTR Advanced version 3 read write enabled EU Unit Allows retrieval of the engineering unit specified on the CX Space for loops that are turned OFF Example C 102 VT_R8 amp High EU Allows retrieval of the SP high limit specified on the CX 0 for loops that are turned OFF Example 2 0000 103 6006 VT_R8 amp VT_I2 Low EU Allows retrieval of the SP low limit specified on the CX 0 for loops that are turned OFF Example 2 0000 Decimal Point Allows retrieval of the number of digits to the right of the decimal point when displaying values on the CX 0 for loops that are turned OFF Example 2 IM 04L01B03 61E 3 25 suoljoun 19M3S Vd DdOOVA 3 2 OPC Interface Functions Specifying the data item OUT CX ItemID is specified as follows Device namelinternal loop or external loop OUT DEVICE1 Loop2 OUT DEVICE1 Ext02 0UT Example For Internal Loops Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_R8 5 VT_l4 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled
11. Itis used in alarms status and other parameters that include engineering units In general the DAQOPC ignores the locale ID The unit and tag strings of the DX DX P MV CX are passed without any modification For error strings OPCServer GetErrorString OPCCommon GetErrorString the DAQOPC Server only supports the locale or the Windows system However all error strings that are defined by the OPC are returned in English Windows system errors are returned in the local language 3 2 8 Structures Defined by the OPC The DAQOPC handles the vendor specific section of the structures that are defined by the OPC specifications as follows Item property structure OPCITEMATTRIBUTES Engineering Unit The engineering unit is the range information of the item ID Server status structure OPCSERVERSTATUS Bandwidth On the DAQOPC the bandwidth is set to the number of ItemIDs that are registered in the cache update Venderlnfo Yokogawa Electric Corporation is set on the DAQOPC server 3 44 IM 04L01B03 61E 3 2 OPC Interface Functions 3 2 9 Support for OPC Optional Specifications The OPC optional functions that DAQOPC supports are described below Browsing retrieves a list of ItemIDs in the server e Hierarchy OPCBrowseServerAddressSpace is an interface used to retrieve a list oftags There are two methods available for viewing the server side list FLAT or HIERARCHICAL For the DAQOPC use the HIERARCHICAL method specifying
12. VT_R4 Server Scan Rate Allows retrieval of the CX control interval in the ms order Example 250 100 101 VT_BSTR VT_BSTR EU Unit Allows retrieval of the engineering unit specified on the CX Space for loops that are turned OFF Example Item Description Allows retrieval of the tag strings specified on the CX Example Furnace 1 102 VT_R8 High EU Allows the retrieval of the upper limit of the span 0 for loops that are turned OFF Example 105 0 103 VT_R8 Low EU Allows the retrieval of the low limit of the span 0 for loops that are turned OFF Example 5 0 6006 VT_I2 Decimal Point Allows retrieval of the number of digits to the right of the decimal point when displaying values on the CX 0 for loops that are turned OFF Example 1 3 26 IM 04L01B03 61E 3 2 OPC Interface Functions For External Loops Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_R8 5 VT_I4 Item Access Rights Access level of item 1 Read only VT_R4 Server Scan Rate Allows retrieval of the CX control interval in the ms order Example 250 100 VT_BSTR EU Unit Allows retrieval of the engineering unit specified on the CX Space for loops that are turned OFF Example
13. the ON OFF VT_R8 Read Write CX control loops only control of the specified PID of the specified loop DEVICExx LoopZ BS1 Measured value 1 input bias of the VT_R8 Read Write CX control loops only specified loop DEVICExx LoopZ BS2 Measured value 2 input bias of the VT_R8 Read Write CX control loops only specified loop DEVICExx LoopZ RBS Remote input bias of the specified VT_R8 Read Write CX control loops only loop DEVICExx LoopZ FL1 Measured value 1 Input filter of the VT_I2 Read Write CX control loops only specified loop DEVICExx LoopZ FL2 Measured value 1 Input filter of the VT_I2 Read Write CX control loops only specified loop DEVICExx LoopZ RFL Remote input filter of the specified VT_l2 Read Write CX control loops only loop DEVICExx LoopZ RT Ratio setting of the specified loop VT_R8 Read Write CX control loops only DEVICExx EXTxx PV PV of the specified external loop VT_R8 Read Only CX external loops only DEVICExx EXTxx SP SP of the specified external loop VT_R8 Read Only CX external loops only DEVICExx EXTxx OUT OUT of the specified external loop VT_R8 Read Only CX external loops only DEVICExx EXTxx Alarmx Alarm status of the specified VT l2 Read Only CX external loops only external loop DEVICExx CHexx INPUT Value of the communication input VT_R8 Read Write Communication input data data only DEVICExx Wbb VALUE Control computation constants VT R8 Read Write CX only DEVICExxICOMMON STATUS Device status VT_l2 Read Write DEV
14. the decimal point when displaying values IM 04L01B03 61E 3 35 suoljoung 19M3S Vd DdOOVA 3 2 OPC Interface Functions Specifying the data item RBS CX ItemID is specified as follows Device position control loops Example DEVICE01 LoopZ RBS Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_R8 5 5 VT_l4 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled 100 VT_BSTR EU Unit Allows retrieval of the engineering unit specified on the CX Space for loops that are turned OFF Example C 102 VT_R8 High EU Allows the retrieval of the upper limit within the selectable range value of EUS100 0 0 for loops that are turned OFF Example 2 0000 103 VT_R8 Low EU Allows the retrieval of the lower limit within the selectable range value of EUS 100 0 Example 2 0000 6006 VT_I2 Decimal Point Allows the retrieval of the number of digits to the right of the decimal point when displaying values 3 36 IM 04L01B03 61E 3 2 OPC Interface Functions Specifying the data item FL1 CX ItemlD is specified as follows Device position control loops FL1 Example DEVICE01 LoopZ FL1 Property ID VARIANT type Description 1 VARTYPE Item Canon
15. winter loaded data will not be correctly updated on other connected units if they are not synched to the main device Therefore you should select Use time of PC in such cases Execute by simulation mode If you select this check box DAQOPC does not perform communications with the DX DX P MV CX and operates as a simulator How to treat special data Assigns values to special data that is retrieved from the DX DX P MV CX For values over or under the range you can specify a particular value or assign upper and lower limits of the span You can also assign values for skip error and unstable data value You can assign a value between 100000000 and 1000000000 A decimal point is added to the appropriate position to the value that is actually retrieved In addition you can assign a value when a nonexistent channel is specified as an item The selectable range is 100000000 to 1000000000 How to treat data at communication error Specify the handling of the value when an error occurs while data is being retrieved If the previous value is used the value before the communication error is retrieved If you are specifying a particular value it is handled in the same fashion as How to treat special values Ifa communication error occurs when DAQOPC initially connects to the DX DX P MV CxX the value is always set to 0 2 4 IM 04L01B03 61E 2 2 Starting the Configurator and Setting Parameters Setting of Ethernet Setting Dialog B
16. 000 SP 3 4 Windows XP Proffesional SP1 2 Miscellaneous If the communication interface with the DAQSTATION is RS 422 A an RS 232 RS 422 A converter is required IM 04L01B03 61E 1 5 1 2 Overall Configuration and DAQOPC Interface This section will describe the overall construction of DAQOPC and an overview of DAQOPC functions Overall Construction of DAQOPC The overall construction of DAQOPC is shown below DAQOPC OPC server consists of a server that provides the interface specifications of the OPC DA OPC client Automation Wrapper DAQOPC DA server A 4 1 4 H it H L i Y lt OPC interface DX DX P MV CX gt Process data k Engineering data Role of each function An overview ofthe interface that DAQOPC supports is indicated Process Data OPC Specification Current value data Read write Complies with DA2 0 With the Advanced version you can save the items shown on page 1 2 Engineering Data OPC Specification Tag information Load Complies with DA2 0 Tag list Load Complies with DA2 0 1 6 IM 04L01B03 61E 1 3 Server Function A list of DAQOPC server functions is shown below Function Name Description OPC DA custom interface Functions that complies with the custom interface of the OPC specification OPC DA automation interface Functions that complies with the automation interface of the OPC spec
17. 1B03 61E 3 31 suoljoun 19M3S Vd DdOOVA 3 2 OPC Interface Functions Specifying the data item PIDx MR CX ItemID is specified as follows Device name PID of the internal loop MR Example DEVICE1 Loop2 PID3 MR Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_R8 5 5 VT_l4 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled 100 VT_BSTR EU Unit Allows retrieval of the engineering unit specified on the CX Fixed 102 VT_R8 High EU Allows the retrieval of the upper limit within the selectable range 105 0 Fixed 103 VT_R8 Low EU Allows the retrieval of the lower limit within the selectable range 5 0 Fixed 6006 VT_I2 Decimal Point Allows the retrieval of the number of digits to the right of the decimal point when displaying values 1 Fixed Specifying the data item PIDx PO CX ItemID is specified as follows Device name PID of the internal loop PO Example DEVICE1 Loop2 PID3 PO Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_R8 5 5 VT_l4 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled 100 VT_BSTR EU
18. BSTR Item Description Allows the retrieval of the tags and tag comment strings specified on the CX The format is tag tag comment up to 17 characters Example Furnace 1 Loop 1 Specifying the external loop ItemlD is specified as follows Device name external loop Example DEVICE1 EXT02 Cannot be registered in a group Property ID VARIANT type Description 101 VT_BSTR Item Description Allows the retrieval of the tags and tag comment strings specified on the CX The format is tag tag comment up to 17 characters Space for loops that are turned OFF Example Funace 1 6001 VT_BSTR Model Allows the retrieval of the model of the external loop Space for loops that are turned OFF Example Utxxx Specifying the device ItemlD is specified as follows Device name Example DEVICE1 Cannotbe registered in a group Property ID VARIANT type Description 6001 VT_BSTR Model Allows the retrieval of the DX DX P MV CX model on the DX DX P MV CX Example DX120 6002 VT_12 Login Level Allows the retrieval of the login level to the DX DX P MV CX 1 Administrator level 2 User level IM 04L01B03 61E 3 43 suopun4 19M3S YA JdOOVA 3 2 OPC Interface Functions 3 2 7 Locale ID LCID The locale ID LCID is a language identifier that is used when the OPC server returns values as strings
19. C Foundation 3 2 1 A List of Interfaces A list of interfaces that are supported is indicated for the OPC Custom Interface and OPC Automation Interface Custom Interface The table below indicates whether or not the DAQOPC supports various interfaces of the Custom Interface Object Interface Name Description Support OPCServer l1OPCServer A standard interface of the OPC DA server Yes Adds and Deletes group objects IOPCCommon OPC common interface Yes Sets the locale and retrieves error strings IConnectionPointContainer OPC common interface Yes Interface for asynchronous communication used to notify the client that the server is going to shut down l1OPCltemProperties Interface Retrieves the properties of the ItemID Yes lOPCBrowseServerAddress Browses the ItemIDs in the OPC DA server Yes Space optional lOPCServerPublicGroups Connects to the public group deletes the public No optional group IPersistFile Loads and saves configuration information No optional OPCGroup lOPCGroupStateMgt Manages the group object Yes lIOPCltemMgt Manages the ItemIDs Yes lOPCSynclO Performs synchronous write and read operations Yes IOPCAsynclO2 Performs asynchronous write and read operations Yes IConnectionPointContainer Interface for creating connections for Yes asynchronous read and write operations 1OPCPublicGroupStateMgt Convert a private group to a public group No optional lOPCAsynclO old Performs
20. FF or if the analog retransmission loop is specified the value is 0 Item name MODE CX of style number S2 or later only Specifiable tag Control loops Auto 1 Manual 2 Cascade 3 If control mode is OFF or if the analog retransmission loop is specified the value is 0 Item name REMLOC CX of style number S2 or later only Specifiable tag Control loops Local 1 Remote 2 If control mode is OFF or if the analog retransmission loops or loops on which remote input selection is turned OFF are specified the value is 0 Item name SPNO CX of style number S2 or later only Specifiable tag Control loops If control mode is OFF or if the analog retransmission loop is specified the value is 0 Item name PIDNO CX of style number S2 or later only Specifiable tag Control loops If control mode is OFF or if the analog retransmission loop is specified the value is 0 Item name BS1 CX of style number S3 or later only Specifiable tag Control loops The value is 0 if the measured value 1 input bias cannot be set or if control mode is OFF or analog retransmission loops are specified or if the measured value 1 input bias setting is OFF If the measured value 1 input bias is OFF when writing and a value other than O is input it automatically turns ON However even if 0 is entered you cannot turn it OFF Item name BS2 CX of style number S3 or later only Specifiable tag Control loops The value is 0 if the measured value 2 inpu
21. ICExx COMMON PROP Property read status VT_l2 Read Write DEVICExx COMMON Record Device sampling status Read Write DEVICExx COMMON Math Device computation status Read Write DEVICExx Batch Name Device batch name Read Write DEVICExx Batch LotNo Device lot number Read Write DEVICExx Message Direct Device message writing Read Write Other than DX P 1 Applies only to CX Style2 or later 2 With the Advanced version data can only be written to the DX MV CX if a user with Administrator privilages is logged on Data cannot be written to the DX MV CX with the Basic version 3 With the Basic and Advanced versions data can only be written to the DX MV CX if a user with Administrator level privileges is logged on With the DX P writing is only possible when logged on as a user specified as a user using communication input data 4 Valid with the MATH option 5 Valid with the DX P or DX CX batch option XX The device position set using the Configurator YYY a Alarm number 1 to 4 bb Control computation constant number 1 to 36 Measurement and computation channel numbers 001 to 060 IM 04L01B03 61E suo joun J49A19S VA DdOOVA 3 2 OPC Interface Functions Item IDs When reading If nonexistent channels or loop PID numbers are specified in the items the value is 0 Except for item PV SP or OUT the previous value is held if a communication error occurs When Writing No check is performed on the serv
22. RIANT data type of items VT_R8 5 5 VT_l4 Item Access Rights OPC_PROP_RIGHTS Access level of item Basic version 1 read only Advanced version 3 read write enabled 102 VT_R8 Hight EU OPC_PROP_HIEU Allows the retrieval of the upper limit within the selectable range 9 9999E29 9 9999E29 Fixed 103 VT_R8 Low EU OPC_PROP_LOEU Allows the retrieval of the lower limit within the selectable range 9 9999E29 _9 9999E29 Fixed Specifying the data item STATUS COMMON ItemlD is specified as follows Device name COMMON STATUS Example DEVICE1 COMMON STATUS Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_12 2 VT_l4 Item Access Rights Access level of item 3 Read and write IM 04L01B03 61E 3 39 suoljoung 19M3S Vd DdOOVA 3 2 OPC Interface Functions Specifying the data item PROP COMMON ItemID is specified as follows Device name COMMON PROP Example DEVICE1 COMMON PROP Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_12 2 VT_l4 Item Access Rights Access level of item 3 Read and write Specifying the data item ItemID is specified as follows Device name COMMON Record Example DEVICE1 COMMON Record Propert
23. Unit Allows retrieval of the engineering unit specified on the CX Fixed 102 VT_R8 High EU Allows the retrieval of the upper limit within the selectable range 105 0 Fixed 103 VT_R8 Low EU Allows the retrieval of the lower limit within the selectable range 5 0 Fixed 6006 VT_I2 Decimal Point Allows the retrieval of the number of digits to the right of the decimal point when displaying values 1 Fixed 3 32 IM 04L01B03 61E 3 2 OPC Interface Functions Specifying the data item PIDx DR CX ItemlD is specified as follows Device name PID of the internal loop DR Example DEVICE1 Loop2 PID3 DR Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_12 2 5 VT_l4 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled Specifying the data item PIDx H CX ItemlD is specified as follows Device name PID of the internal loop H DEVICE1 Loop2 PID3 H Example Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_R8 amp 5 VT_l4 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled VT_BSTR EU Unit A
24. User s DXA410 Sane DAQOPC User s Manual YOKOGAWA IM 04L01B03 61E 5th Edition Yokogawa Electric Corporation Foreword Notes Copyright Trademarks Revisions 5th Edition December 2005 YK This manual explains the functions and operations of DAQOPC To ensure correct use please read this manual thoroughly before beginning operation After reading the manual keep it in a convenient location for quick reference whenever a question arises during operation DAQOPC is an OPC server that provides OPC interface Data Access interface The OPC interface was designed by the OPC OLE for Processing Control Foundation This manual describes the specifications of the Data Access interface and vender specific section This manual is for those who understand the specifications of the OPC Foundation The contents of this manual are subject to change without prior notice as a result of continuing improvements to the instrument s performance and functions Every effort has been made in the preparation of this manual to ensure the accuracy of its contents However should you have any questions or find any errors please contact your nearest YOKOGAWA dealer as listed on the back cover of this manual Copying or reproducing all or any part of the contents of this manual without the permission of Yokogawa Electric Corporation is strictly prohibited YOKOGAWA holds the copyright to the soft
25. X P MV CX Example Furnace 1 102 VT_R8 High EU Allows retrieval of the upper limit of the span or scale that is specified on the DX DX P MV CX 0 for skipped channels and loops that are turned OFF Example 2 0000 103 VT_R8 Low EU Allows retrieval of the lower limit of the span or scale that is specified on the DX DX P MV CX 0 for skipped channels and loops that are turned OFF Example 2 0000 6006 VT_l2 Decimal Point Allows retrieval of the number of digits to the right of the decimal point when displaying measured values and computed values on the DX DX P MV CX The number of digits to the right of the decimal point of the PV range for internal loop control with PV switching of the CX 0 for skipped channels and loops that are turned OFF Example 2 3 20 IM 04L01B03 61E 3 2 OPC Interface Functions Specifying the data item ALARM measurement channel computation channel internal loop CX and external loop CX ItemlD is specified as follows Device name measurement computation channel internal loop or external loop ALARM1 to ALARM4 Example DEVICE1 CH001 ALARM1 DEVICE1 Loop1 ALARM1 DEVICE1 Ext1 ALARM1 For Measurement Computation channels Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_12 2 VT_l4 Ite
26. aeseeeeenaeesaesneeesiaeseeeeaes 1 1 1 2 Overall Configuration and DAQOPC Interface eccceceeeeceeeeeeeeeeeeeeeeeeeeenieeseaeeeeeeenas 1 6 1 3 Server FUNCION vases E aaa NE Eu aes 1 7 Chapter 2 DAQOPC Operation 2 1 Flow of DAQOPG Operations 2 iccscienaeon deed de Naa aed E ROA AA aT 2 1 2 2 Starting the Configurator and Setting Parameters ccccceeeeeeseeceeeeeeeeeseeeeeeeeseeeeeeeeaees 2 2 2 3 Starting and Stopping DAQOPC eee cecceeeeeeeeeeeeeeeeeeeeeeeaaeeeeeesaeeeeeesieeesaeeeeeesieeseneenaes 2 9 2 4 Setting Up the DAQOPC Client 00 ee ec eeeeeetee ene cee eeerteeeeee ene eeeaaeeeeeeseeeeeeenieestaeeeeeeeea 2 10 Chapter 3 DAQOPC DA Server Functions 3 1 Overview of the DAQOPC DA Server Function ecceeeceeeeeeceeeeeeeeeteeeeeeeeeeeenaeeteeeenaeees 3 1 Data Access Method via the OPC Interface eccceceeseeeeeeeeeeeeeeeceeeeeaeeeeeeeseeeeeeeaes 3 1 OPC Interface Compliance icisa deen nie eine ail a tai a 3 1 3 2 OPC Interiace FUNCUONS nriran een a A TETE ene 3 2 32 1 A Listiot Interfaces recan nie A ein 3 2 3 2 2 Process Datel goe eninin ee Measertons ite e a a a ia 3 7 323 teml Deieren a E e e e a ied T a Ginnie ate 3 10 Defining the Item ID ecccceceeceeeceeceeeeeeeeeeeeeeeeeeeeseeeeeeeaeeescegeeeeeeaeeeneeeeeeseneees 3 10 Alistof Item IDS i ssc scssee senna teil betasdeuseg apedeesd ieee eds Sisae shade aeheseeadatasagineeies 3 10 tem IDS ise escheat Le eh 3 12 Access paths tes
27. ame Description Support Parent Parent group object Yes DefaultRequestedDataType Default requested data type Yes Properes DefaultAccessPath Default access path No DefaultActive Default active property Yes Count Number of collections Yes Item Gets the item object Yes GetOPCltem Gets the item object Yes OPCltems Remove Removes the item object Yes Validate Checks the item Yes Methods SetActive Sets the active property Yes SetClientHandles Sets the client handle Yes SetDataTypes Sets the data type Yes Additem Adds an item Yes Additems Adds multiple items Yes Parent Parent group object Yes ClientHandle Client handle Yes ServerHandle Server handle Yes AccessPath Access path No AccessRights Access rights Yes ItemID ItemID Yes IsActive Active property Yes Properties RequestedDataType Requested data type Yes OPClitem Value Data value Yes Quality Quality flag Yes TimeStamp Time stamp Yes CanonicalDataType Data type assigned by the server Yes EUType Engineering unit type No EUInfo Engineering unit information No Read Performs a synchronous read Yes Methods Write Performs a synchronous write Yes Yes Supported No Not supported IM 04L01B03 61E 3 2 OPC Interface Functions 3 2 2 Process Data The process data of the OPC specification consists of the following three elements Value Quality Flag Time Stamp Value OPC uses a data type called VARIANT Quality Flag This flag indicates whether the Value was retrieve
28. asynchronous write and read operations Yes old interface for compatibility IDataObject old Performs connection and disconnection to the Yes asynchronous I O old interface for compatibility EnumOPCltem EnumOPCltemAttributes Retrieves a list of ItemIDs that are registered in the Yes Attributes group object Yes Supported No Not supported 3 2 IM 04L01B03 61E 3 2 OPC Interface Functions Automation Interface The DAQOPC only supports the automation interfaces that correspond to the custom interfaces that are supported The table below shows whether or not the interface is supported Since those that are not supported may result in error error handling for Visual Basic must be provided Object OPCServer Type Name Description Support StartTime Time when the server was started Yes CurrentTime Current time Yes LastUpdateTime Time that was notified last Yes MajorVersion Major version Yes MinorVersion Minor version Yes BuildNumber Build number Yes VendorInfo Vendor information Yes Properties ServerState Server state Yes LocalelD Locale ID Yes Bandwidth Bandwidth Yes OPCGroups Collection of group objects Yes PublicGroupNames Public group name No ServerName Server name Yes ServerNode Node name Yes ClientName Client name Yes GetOPCServers Gets a list of server names Yes Connect Established connection Yes DisConnect Releases connecti
29. aution Do not store the product near large amounts of refuse or dust Do not touch the side of the CD R with no printed characters Dirt or sweat from fingertips can damage the CD R Do not write anything on the CD R e Pencil lead or residue from erasers can damage the CD R Do not bend or scratch the CD R Doing so can cause it to become unreadable Never place anything on top of the CD R Doing so can cause deformities that can render the CD R useless Do not drop the CD R from high locations Dropping the CD R can cause damage or deformities Do not place the CD R in direct sunlight or near heat sources When cleaning the CD R do not use solvents Especially do not use alcohol benzene or freon Take care when placing the CD R into the CD ROM drive While the CD R is being accessed do not remove the CD R from the CD ROM drive cut the power to the PC or reset the computer Store the CD R in its original jewel case Do not leave the CD R in the CD ROM drive after use It can become deformed or damaged unless it is kept in its case i IM 04L01B03 61E Contents Checking the Contents of the Package ceseesceceeeeeeeeeeeeeeeeeeeeeneeeeaeeeeesaeseeeeceeetaaeeneeesnateeneeeaees ii Notes on USing This Product sinnincugis n anan a a a a a i a iii CD R Handling Guidelines srein aan a a a a Guan iv Chapter 1 Overview 1 1 Functional Overview Of DAQOPC eeececceeeceeeeeeceeceeeeeneeeeeeeeeneec
30. cation input data cannot be specified as an DAQOPC item ID With the DX P the monitor function is used port number 34261 Therefore the write function cannot be used However communication input data can be written if using a user specified as users using communication input data on the DX P side With the DX P if the password is incorrect neither automatic recovery nor manual recovery through writing to the item STATUS is allowed Please make note of this Also it is recommended that the password expiration period for users connected to the DX P be set to when the DX P main unit is turned OFF When the port is COM Click the address to display the following dialog box Ea x gt RS 422 4 o1 02 03 C 04 Be gw a rite Bot E oot Jobe T lao C 06 we go C 29 C 06 C14 go C30 Cc o7 08 Bo gli wg wW oe Set the RS 422 A address Serial Setting Tab Page The following items are specified on the Serial Setting tab page Port No Type Baud Rate Parity Bit Stop Bit RS 422 4 RS 422 A RS 422 A RS 422 A Cancel gt none gt none B none gt none E None E None E none E none Select the check box corresponding to the port to be used Set the type of port to be used Select the baud rate for the port to be used Set the parity for the port to be used Select the stop bit for the port to be used IM 04L01B03 61E
31. ce name PID of the internal loop P Example DEVICE1 Loop2 PID3 P Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_R8 5 5 VT_l4 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled 100 VT_BSTR EU Unit Allows retrieval of the engineering unit specified on the CX Fixed 102 VT_R8 High EU Allows the retrieval of the upper limit within the selectable range 999 9 Fixed 103 VT_R8 Low EU Allows the retrieval of the lower limit within the selectable range 0 1 Fixed 6006 VT_l2 Decimal Point Allows the retrieval of the number of digits to the right of the decimal point when displaying values 1 Fixed IM 04L01B03 61E 3 29 suoljoun 19M3S Vd DdOOVa 3 2 OPC Interface Functions Specifying the data item PIDx I CX ItemID is specified as follows Device name PID of the internal loop Example DEVICE1 Loop2 PID3 I Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_12 2 5 VT_l4 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled 100 VT_BSTR EU Unit Allows retrieval of the engineering unit specified on the CX S Fixed
32. d Select the number of computation channels of the DX DX P MV CX to be connected Select the number of internal loop of the CX to be connected Select the number of PID of the CX to be connected Select the number of external loop of the CX to be connected The values of measurement channels computation channels internal loops PID group numbers and external loops are retrieved from the DX DX P MV CX when connecting to it so there is no need to enter those values However in simulation mode DAQOPC operates according to the values set here since it does not communicate with the DX DX P MV CX When the port is an Ethernet port Click the address to display the following dialog box Input Address Recorder 01 Ether IP Address or Host name Login Name Password Login Level amin a Administrator C User Cancel IM 04L01B03 61E 2 2 Starting the Configurator and Setting Parameters Specify the following parameters IP Address or Host name Login name User ID Password Login level If the parameters are not correct connection to the DX DX P MV Note Enter the IP address or host name that is assigned to the DX DX P MV CX that is to be connected Specify the login name Specify the user ID DX P only Specify the password Specify the level for the specified login name Other than DX P CX fails With the CX and DX if the login level is user communi
33. d 103 VT_R8 LDecimal Point Allows the retrieval of the number of digits to the right of the decimal point when displaying values Note If the ratio setting is OFF the value is 0 Also the number of digits after the decimal point is the value held when communication starts or when property information is acquired through PROP Therefore after communication starts if you change number of digits after the decimal point on the instrument side a reload is executed through item PROP Example 2 3 38 IM 04L01B03 61E 3 2 OPC Interface Functions Specifying the data item INPUT Communication Input Data ItemlD is specified as follows Device name communication input data INPUT Example DEVICE1 CHC01 INPUT Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_R8 5 VT_I4 Item Access Rights Access level of item Communication input data 102 VT_R8 3 Read and write High EU Allows the retrieval of the upper limit that can 103 VT_R8 be input Low EU Allows the retrieval of the lower limit that can be input Specifying the data item Value ItemlD is specified as follows Device name W aa Value Example DEVICE1 Wac Value Property ID VARIANT type Description 1 VARTYPE Data Type OPC_PROP_CDT Allows retrieval of VA
34. d correctly Notifies the reason if erroneous The quality flag of DAQOPC follows the system of the OPC specifications The quality flag system of the OPC specifications consists of the following three contents Quality Good Bad or Uncertain Substatus details dependent on the Quality Limit additional information for the substatus The quality flag is expressed using the following 8 bits Substatus on the Quality code 7 6 pS 4s 27 1 0 Bit ti Limit Not Limited LL HL Constant Quality Good Bad or Uncertain DAQOPC sets these three types of information as a quality flag IM 04L01B03 61E 3 7 suoipun4 19A49S YA dOOVA 3 2 OPC Interface Functions Quality and Substatus The Substatus of the Quality code contains information that can be expressed using 4 bits for each Quality Good Bad and Uncertain The Substatus codes are defined by the OPC specifications DAQOPC uses these codes to add details The table below shows the information that the OPC specifications define Substatus for Each Data Quality Code Good 3 Non specific Bad 0 Non specific Uncertain 1 Non specific N A Configuration Error Last Usable Value Local Override Not Connected Device Failure N A Sensor Not Accurate Sensor Failure EngineeringUnitsExceeded Last Known Value Sub Normal oO a amp wo n
35. d version 3 read write enabled 100 VT_BSTR EU Unit Allows retrieval of the engineering unit specified on the CX Fixed 102 VT_R8 High EU Allows the retrieval of the upper limit within the selectable range 105 0 Fixed 103 VT_R8 Low EU Allows the retrieval of the lower limit within the selectable range 5 0 Fixed 6006 VT_l2 Decimal Point Allows the retrieval of the number of digits to the right of the decimal point when displaying values 1 Fixed Specifying the data ItemlD is specified as follows Device name PID of the internal loop OL item PIDx OL CX Example DEVICE1 Loop2 PID3 OL Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_R8 5 5 VT_ 4 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled 100 VT_BSTR EU Unit Allows retrieval of the engineering unit specified on the CX Fixed 102 VT_R8 High EU Allows the retrieval of the upper limit within the selectable range 105 0 Fixed 103 VT_R8 Low EU Allows the retrieval of the lower limit within the selectable range 5 0 Fixed 6006 VT_l2 Decimal Point Allows the retrieval of the number of digits to the right of the decimal point when displaying values 1 Fixed IM 04L0
36. e specified the value is O Item name PIDxASP CX only Specifiable tag Control loop PID Item names are ASP1 ASP2 ASP3 and ASP4 If control mode is OFF or if the analog retransmission loops or loops on which alarms are turned OFF are specified the value is 0 3 14 IM 04L01B03 61E 3 2 OPC Interface Functions Item name PIDxP CX only Specifiable tag Control loop PID If control mode is OFF or if the analog retransmission loops or loops on which proportional band cannot be set are specified the value is 0 Item name PIDxI CX only Specifiable tag Control loop PID If control mode is OFF or if the analog retransmission loops or loops on which integral time cannot be set are specified the value is 0 Item name PIDxD CX only Specifiable tag Control loop PID If control mode is OFF or if the analog retransmission loops or loops on which differential time cannot be set are specified the value is 0 Item name PIDxOH CX only Specifiable tag Control loop PID If control mode is OFF or if the analog retransmission loops or loops whose output upper limit cannot be set are specified the value is 0 Item name PIDxOL CX only Specifiable tag Control loop PID If control mode is OFF or if the analog retransmission loops or loops whose output lower limit cannot be set are specified the value is 0 Item name PIDxMR CX only Specifiable tag Control loop PID If control mode is OFF or if the analog retransmi
37. ece ceesceeceeseeeeeeeeeeeeeeeeeeneaes E gt Error CHAOS inanarsan ana A 3 46 E Flow of DAQOPC Operation cccceceeeeeteeeeeeeteeeeeeeees 2 1 G Group NAME web eireretclaecavie banner aba detees 3 19 Group Object Properties 2 0 0 cc eeeesseeeeeseceeeseceeeeneeeeeeaes 3 19 Me E Hardware Requirements ccccccsceceeseeeesesteeeseeeeeeeeaees 1 5 Hierarchy l tem Properties n ieccian opio eee 3 20 Item Properties IOPCltemProperties eececcececee 3 20 Item property structure 2 0 eect cette eee eeeeetteeeeeeeteeeeeaee 3 44 WMD rinish a AEAEE eRT 3 10 L Locale D ea E e a e 3 44 M Model sisenesid daii ii O gt OPC Automation Interface cccccccccssseeccssseecesseeeseneeeees 1 8 OPC Custom Interface cccecceeeseeceeeceeeeeeeeeseeneesneeenaes 1 8 OPC interface 06 1 1 OPC Interface Compliance 3 1 OPC Interface Functions we 3 2 Overall Construction of DAQOPC cccccecescceesseeeeeseeeeees 1 6 P Process Data Q Quality Flag Aa ee A niente S Server Function cccccccescceessscecessseecsseeeessseeeesssteceseaeecenes 1 7 Server status structure cccccccccssssecessssecessseescsseeesenseees 3 44 Server Client Configuration ccccccecceseeeeeeeeeeeeteeeeeees 1 4 Setting Up the DAQOPC Client 2 10 Software Requirements 21 5 Starting and Stopping DAQOPC 2 9 Sulfix Code cesses ree casts h
38. ection with the DAQSTATION from which to retrieve the data using the Configurator 2 Start DAQOPC 3 Set up the client software if the client is on a different PC Changing the Parameter during DAQOPC Operation You can change system parameters on the DAQOPC configuration window even when DAQOPC is in operation However the specified parameters take effect the next time DAQOPC is started IM 04L01B03 61E 2 1 uoneiado OdOOVa D 2 2 Starting the Configurator and Setting Parameters Configurator Configurator is used to set the communication conditions between DAQOPC and the DAQSTATION from which to retrieve the data Starting the Configurator Choose Start gt Programs gt DAQOPC gt DAQOPC Configurator The window that appears when the program is started is shown below File Settings E ether E ether E ether Broe Broe Broe O Broe B none T B roe Not Connected z NONE IM 04L01B03 61E 2 2 Starting the Configurator and Setting Parameters A List of Menu Commands The functions of menu commands are indicated below File gt Revert Reloads the setup file without saving the information that you are currently editing File gt Save Saves the information that you are currently editing to the setup file File gt Print Prints the recorder settings and serial settings that you are currently editing File gt Print Preview Prints the preview of the recorder settings and serial sett
39. ed value 2 input filter of the control loop Remote input filter of the control loop Control loop ratio setting Control computation constants Where OPC Interface Fits OPC client refers to the application that requests data using the OPC interface OPC server refers to the application that provides the data MO1A19AQ General purpose PC Windows 2000 Windows XP OPC client OPC interface Ethernet 7 General purpose PC General purpose PC OPC client 4 sal ee OPC server OPC server DAQOPC DAQOPC Ethernet DX DX P MV CX DX DX P MV CX Process data Process data The OPC server and OPC client run on a general purpose PC You can use a commercially sold OPC compliant application or an OPC compliant application that you ve created using VC Visual C VB Visual Basic or VBA Visual Basic for Application as an OPC client IM 04L01B03 61E 1 3 1 1 Functional Overview of DAQOPC Server Client Configuration The DAQOPC user OPC client may exist on the same PC as the DAQOPC server or on ahost computer Windows machine When the OPC client exists on the same PC as the DAQOPC server OPC server DAQOPC amp Process data i Ethernet Application size Mid size Performance Faster than when the OPC client exists on a host computer because a local OPC server is used When the OPC client exists on a host computer _ OPC in
40. ee sane eee cena ca eE EEEE EEEE ii T Time Stamp s ere a aati 3 7 3 9 V WV AIUC aiai aia e e a A a E E neuen es 3 7 W What Is an OPC Interface c ccccseccescesceeseesseeeeeseeeeees 1 1 IM 04L01B03 61E Index 1
41. em Basic version 1 read only Advanced version 3 read write enabled Specifying the data item REMLOC CX ItemID is specified as follows Device namelinternal loop REMLOC Example DEVICE1 Loop2 REMLOC Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_12 2 VT_l4 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled Specifying the data item SPNO CX ItemID is specified as follows Device namelinternal loop SPNO Example DEVICE1 Loop2 SPNO Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items 5 VT_l4 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled 3 28 IM 04L01B03 61E 3 2 OPC Interface Functions Specifying the data item PIDNO CX ItemlD is specified as follows Device namelinternal loop PIDNO Example DEVICE1 Loop2 PIDNO Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_12 2 5 VT_I4 Item Access Rights Access level of item 1 Read only Specifying the data item PIDx P CX ItemlD is specified as follows Devi
42. end 1 and Report 1 are accessed as independent group objects In addition the value of Device1 ch01 PV exists in Trend 1 and Report 1 in this example Server object Group object ItemID m Trend 1 m Device1 ch01 pv m Device1 ch02 pv m Device1 ch03 pv Device1 ch04 pv m Device1 ch01 pv Device1 ch01 Alarm1 Server object A Report 1 OPC Interface Compliance The DAQOPC is an OPC server that provides the interface complying with the following OPC DA Specification Version 2 0 and Version 1 0A OPC DA Custom Interface OPC DA Automation Interface It supports all the standard functions that are defined in these OPC Specifications In addition those items that are defined as options browse function of items are also supported Note For details on the OPC Custom Interface and OPC Automation Interface see the corresponding sections in section 1 3 Server Functions IM 04L01B03 61E 3 1 suoljun 19A19S Vd DdOOVA 3 2 OPC Interface Functions The DAQOPC supports the standard interface of OPC Version 2 0 It also supports a portion of the interface that is defined to be options For clients that use the older version of the OPC interface functions that were supported in OPC Version 1 0A are also supported This section will mainly focus on the vender specific option interface of the DAQOPC For details on the OPC Interface see the specifications that are released by the OP
43. ents DXA410 DAQOPC CD R 1pc User s manual this document 1 pc in case DXA410 DAQOPC Installation manual 1 pe ii IM 04L01B03 61E Notes on Using This Product Storing the CD R Agreement Please store the original CD R in a safe place During the actual operation use the software that is installed on the hard disk Restriction on Use Use of this product this utility software and manual by more than one computer at the same time is prohibited Use by more than one user is also prohibited Transfer and Lending Transfer or lending of this product to any third party is prohibited Guarantee Should a physical deficiency be found on the original CD R or this manual upon opening the product package please promptly inform Yokogawa The claim must be made within seven days from the date you received the product in order to receive a replacement free of charge Exemption from Responsibility Yokogawa Electric Corporation provides no guarantees other than for physical deficiencies found on the original CD R or this manual upon opening the product package Yokogawa Electric Corporation shall not be held responsible by any party for any losses or damage direct or indirect caused by the use or any unpredictable defect of the product Copyright YOKOGAWA holds the copyright to the software that is on the CD R IM 04L01B03 61E CD R Handling Guidelines Make sure to take the following safety precautions C
44. er side to determine whether or not the value to write is within the allowed range Item name PV Specifiable tag Measurement computation control loop external loop The communication error values OVER values OVER values skip values error values and unstable data values are set to the values specified in the Configurator If control mode is OFF on the CX or for analog retransmission it is set to the skip value Item name ALARM Specifiable tag Measurement computation channels control loops and external loops Item names are ALARM1 ALARM2 ALARMS and ALARM4 The alarm value is 0 if there is no alarm occurring Otherwise the value is set according to the list below Alarm type 0 Alarm OFF 22 PV low limit alarm 1 Upper limit alarm 23 Deviation high limit alarm 2 Lower limit alarm 24 Deviation low limit alarm 3 Difference upper limit alarm 25 Deviation high amp low limit alarm 4 Difference lower limit alarm 26 Deviation within high amp low limit alarm 5 Upper limit on rate of change alarm 27 SP high limit alarm 6 Lower limit on rate of change alarm 28 SP low limit alarm 7 Delay upper limit alarm 29 Output high limit alarm 8 Delay lower limit alarm 30 Output low limit alarm 21 PV high limit alarm 31 Other alarms For skip channels or channels with MATH turned OFF or when control mode is OFF or the analog retransmission loop is specified the value is O when alarms are turned OFF Item name AT
45. ical Data Type Allows retrieval of VARIANT data type of items VT_12 2 100 VT_I4 VT_BSTR Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled EU Unit Allows retrieval of the engineering unit specified on the CX S Fixed 102 VT_R8 amp High EU Allows the retrieval of the upper limit within the selectable range 120 Fixed 103 VT_R8 amp Low EU Allows the retrieval of the lower limit within the selectable range _1 Fixed Specifying the data item FL1 CX ItemlD is specified as follows Device name control loop PID H Example DEVICE1 Loop2 PID3 H Property ID VARIANT type Description 1 VARTYPE VT_l4 Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_12 2 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled 100 VT_BSTR EU Unit Allows retrieval of the engineering unit specified on the CX S Fixed 102 VT_R8 amp High EU Allows the retrieval of the upper limit within the selectable range 120 Fixed 103 VT_R8 amp Low EU Allows the retrieval of the lower limit within the selectable range _1 Fixed IM 04L01B03 61E 3 37 suoljoung 19M3S Vd DdOOVA 3 2 OPC I
46. ification DA Server Application capacity The application capacity of the DAQOPC DA server is shown below Item Application Capacity Maximum number of clients 100 clients Maximum number of group objects 1 000 groups Maximum number of registered ItemIDs 10 000 group Maximum number of cache update ItemIDs 100 000 Cache update rate UpdateRate 1 000 to 3 600 000 ms 1 s to 1 h Server name ProgID Server name is as follows Server Name Yokogawa ExaopcDADAQOPC1 Note You can also check the server name ProgID in the Version Information dialog box of the DAQOPC configuration window IM 04L01B03 61E 1 7 ae 1 3 Server Function OPC Custom Interface and OPC Automation Interface The OPC specification defines two types of interfaces OPC custom interface and OPC automation interface Both of these interfaces have approximately the same data access functions but they are designed for different client programs The DAQOPC OPC server implements both interfaces and supports both types of client programs Custom Interface Automation Interface Application For dedicated applications such as For easy access from script languages SCADA MES analysis software programs Number of client languages VC Visual Basic Good Poor Performance The OPC custom interface uses the basic OLE COM functions directly and operates at a high speed In contrast the OPC automat
47. ings that you are currently editing File gt Printer Setup Sets the printer File gt Exit Exits the Configurator Settings gt Working Condition Displays the Working Condition dialog box Settings gt Ethernet Setting Displays the Ethernet Setting dialog box View gt Recorder Setting Switches to the Recorder Setting tab View gt Serial Setting Switches to the Serial Setting tab View gt Toolbar Shows or hides the toolbar View gt Status Bar Shows or hides the status bar Help gt About Displays the Version Information dialog box IM 04L01B03 61E uoneiado OdOOVa D 2 2 Starting the Configurator and Setting Parameters Working Condition Dialog Box Set the following items on the Working Condition dialog box r Time stamp I Execute by demo mode C Use time of PC r How to treat special data r over data over data Define value fo Define value fo C Use lower span C Use lower span C Use upper span C Use upper span Skip data value 0 Error data value 0 0 Unstable data value How to treat data at communication error Define value 0 C Use previous value OK Cancel Time Stamp Select whether to use the time of the connected recorder or the time of the PC in which DAQOPC is installed for the time stamp that is added when the data is retrieved Note If daylight savings time is engaged on the main DX DX P MV CX and the time changes from summer to
48. ion interface complies with the OLE automation interface that allows access from Visual Basic The process that facilitates the access from script languages leads to an overhead and therefore the performance is slightly lower than the OPC custom interface VB and VC versions If you are creating an application program OPC client use the following versions of VB and VC Version DAQOPC and User Application on the DAQOPC and User Application on Same PC Different PCs DAQOPC R3 01 VB6 0 VC 6 0 SP5 VB5 0 6 0 VC 5 0 6 0 If you are creating a program using VB select the Yokogawa Exaopc Data Access Automation Server check box by choosing Project gt References 1 8 IM 04L01B03 61E Chapter 2 DAQOPC Operation 2 1 Flow of DAQOPC Operation Flow of Operation This section will describe the operations of DAQOPC For the access method from the OPC client software see chapter 3 DAQOPC DA Server Function DAQOPC refers to the setup file at startup and logs onto the DX DX P MV CX The DAQOPC configuration window provides easy to use user interface like a typical Windows application for displaying and setting the communication parameters of the DX DX P MV CX from which DAQOPC is to retrieve data In addition the DAQOPC configuration window shows information that is required for the client to connect to DAQOPC ProgID The general flow of operation is as follows 1 Determine the method of conn
49. ions Communication error 4 When the status is 3 and 4 and Ois written the DAQOPC server attempts to recover the communication of the specified device Writing 0 when the status is 0 1 or 2 is void ono Note Item name PROP Specifiable tag COMMON Indicates the property read status of the specified device see below The properties of the specified device have not been read 0 The properties of the specified device have been read 1 Performs a read operation to the specified device 2 When 2 is written the properties are retrieved from the specified device Normally the properties are read when the DAQOPC is started When a retrieve request for a property value is not received the server returns this value In addition the server uses the decimal position information of the measured and computed values that are retrieved at the start of DAQOPC Therefore if you change the range the number of loops the PID number and other settings on the specified device make sure to execute a reread Item name Record Specifiable tag COMMON The sampling status is shown as follows During sampling or sampling start 2 Sampling stopping or sampling stopped 1 In the case of a communication error the value prior to occurrence of the error is held 3 16 IM 04L01B03 61E 3 2 OPC Interface Functions Item name Math Specifiable tag COMMON The computation status is shown as follows When nonexistent Computation sto
50. ishsisiats Aisin the ai annie hei Ah nied 3 17 BOD bs oiscedsuateites a dl Mig env anvil a a ae eaa a eai aa Meats 3 17 3 2 4 Data acquisition operation 0 ee eeesee eset ee eneeeeeeneeeeeneeeeeaeeeeeeeeeneeeeetieeeeeaa 3 18 Limits of Data Acquisition Operation oo eee eecceeeeceeeeeeeeceeeeceaeeeeeeneeeteeseeeenaes 3 18 Cached data update cs is tec0s tect esandee acted aude ein a a aie 3 18 Data change notification eccceeeecceceeeeceeeeeeeeeeeeeeeeeeeeeeeneeeceeneeneeaeeeneeeeeesenenes 3 19 3 2 5 Group Object Properties IOPCGroupStateMgpt 0 0 ceeeeceeeeeeseeereetteeeeeeenaes 3 19 3 2 6 ltem Properties oeren ies unya nian 3 20 3 2 7 Locale IDEC Dianea i a a a a Medecine aa 3 44 3 2 8 Structures Defined by the OPC 0 ec eeceeececeeeceeeeeeteeeeeeeeeeecaeteaeeeneeetieeteeeeaes 3 44 3 2 9 Support for OPC Optional Specifications 0 0 ee ecceeeeceeeeceeeeeeeeeeteeetaeeeeeeeees 3 45 BS Eror CodeS a fasgth Sotaa c Has caste a a a Awe aaaeaatenaa ie 3 46 Index IM 04L01B03 61E v Chapter 1 Overview 1 1 Functional Overview of DAQOPC What Is an OPC Interface By using the OPC interface provided by YOKOGAWA the user is able to access various data on the DX DX P MV CX via the DAQOPC server using an OPC compliant application that runs on a Windows machine The user does not have to create a special application program The OPC interface is a standard interface that uses OLE Object Linking and Embedding for process co
51. llows retrieval of the engineering unit specified on the CX Space for loops that are turned OFF Example C 102 VT_R8 amp High EU Allows the retrieval of the upper limit within the selectable range value of EUS100 0 0 for loops that are turned OFF Example 2 0000 103 6006 VT_R8 amp VT_I2 Low EU Allows the retrieval of the lower limit within the selectable range value of EUS0 0 0 for loops that are turned OFF Example 2 0000 Decimal Point Allows the retrieval of the number of digits to the right of the decimal point when displaying values 0 for loops that are turned OFF Example 2 IM 04L01B03 61E 3 33 suoljoung 19M3S Vd DdOOVA 3 2 OPC Interface Functions Specifying the data item BS1 CX ItemID is specified as follows Device position control loops BS1 Example DEVICE1 Loop2 BS1 Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_R8 amp 5 5 VT_I4 Item Access Rights Access level of item Basic version 1 read only 6 VT_BSTR 102 VT_R8 amp Advanced version 3 read write enabled EU Unit Allows retrieval of the engineering unit specified on the CX Space for loops that are turned OFF Example C High EU Allows the retrieval of the upper limit within the selec
52. m Access Rights Access level of item 1 Read only VT_R4 Server Scan Rate Allows retrieval of the DX DX P MV CX scan rate in the ms order Example 250 100 VT_BSTR EU Unit Allows retrieval of the engineering unit specified on the DX DX P MV CX Space for skipped channels Example C Alarm Type 6004 VT_I2 Allows retrieval of the type of alarm specified on the DX DX P MV CX OFF for all skipped channels and measurement channels that are turned OFF 0 Alarm OFF 5 Upper limit on rate of change alarm 1 Upper limit alarm 6 Lower limit on rate of change alar 2 Lower limit alarmm 7 Delay upper limit alarm 3 Difference upper limit alarm 8 Delay lower limit alarm 4 Difference lower limit alarm Alarm Trigger 6005 6007 VT_R8 amp VT_I2 Allows retrieval of the alarm trigger value specified on the DX DX P MV CX 0 when alarm is OFF 0 for skipped channels Example 1 583 Alarm Detect Acquires the alarm detection ON OFF set on the CX For the DX DX P and CX Style 1 or 2 always set to 1 0N 0 OFF Do not detect alarms 1 ON Detect alarms operates as normal alarms IM 04L01B03 61E 3 21 suoljoun 19M3S Vd DdOOVa 3 2 OPC Interface Functions For CX internal loop Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT da
53. mission loops are specified or if the measured value 2 input filter setting is OFF If the measured value 2 input filter is OFF when writing and a value other than 0 is input it automatically turns ON However even if 0 is entered you cannot turn it OFF Item name RFL CX of style number S3 or later only Specifiable tag Control loops The value is 0 if the remote input filter cannot be set or if control mode is OFF or analog retransmission loops are specified or if the remote input filter setting is OFF If the remote input filter is OFF when writing and a value other than 0 is input it automatically turns ON However even if 0 is entered you cannot turn it OFF Item name RT CX of style number S3 or later only Specifiable tag Control loops If the ratio setting cannot be set or control mode is OFF or if the analog retransmission loop is specified the value is 0 When the ratio setting is OFF when writing a value other than 1 it automatically turns ON You cannot set it to OFF Note For the number of digits to the right of the RT decimal point the number when reading RT from the instrument is applied This number of digits is also used when writing Therefore remember that the number of digits cannot be changed when writing Furthermore when you switch from OFF to ON the decimal places is set to 0 Item name PIDxSP CX only Specifiable tag Control loop PID If control mode is OFF or if the analog retransmission loops ar
54. nal External Loops Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_R8 5 VT_I4 Item Access Rights Access level of item 1 Read only VT_R4 Server Scan Rate Allows retrieval of the CX control interval in the ms order Example 250 100 VT_BSTR EU Unit Allows retrieval of the engineering unit specified on the CX Space for loops that are turned OFF Example C 101 VT_BSTR Item Description Allows retrieval of the tag strings specified on the CX Example Furnace 1 102 VT_R8 High EU Allows retrieval of the SP high limit specified on the CX 0 for loops that are turned OFF Example 2 0000 103 VT_R8 Low EU Allows retrieval of the SP low limit specified on the CX 0 for loops that are turned OFF Example 2 0000 6006 VT_I2 Decimal Point Allows retrieval of the number of digits to the right of the decimal point when displaying values on the CX The number of digits to the right of the decimal point of the PV range for internal loop control with PV switching of the CX 0 for non existing loops and loops that are turned OFF Example 2 3 24 IM 04L01B03 61E 3 2 OPC Interface Functions For PID Property ID VARIANT type Description 1 VARTYPE
55. ndicated below Group name For the DAQOPC DA Server if no name is specified when creating a group object a group object with the following name is created Name of the created group CSGroup1 CSGroup2 CSGroupN where N is an integer string IM 04L01B03 61E 3 19 suoljun 19A49S YA DdOOVA 3 2 OPC Interface Functions 3 2 6 Item Properties Item properties are property values that can be retrieved by specifying the ItemID and property ID The following types of data can be acquired Specifying the data item PV measurement channel computation channel internal loop CX and external loop CX ItemID is specified as follows Device name measurement computation channel internal loop or external loop PV Example DEVICE1 CH001 PV DEVICE1 Loop1 PV DEVICE1 Ext1 PV Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_I4 VT_R4 Item Access Rights Access level of item 1 Read only Server Scan Rate Allows retrieval of the DX DX P MV CX scan or control rate control loop in the ms order Example 250 100 VT_BSTR EU Unit Allows retrieval of the engineering unit specified on the DX DX P MV CX Space for skipped channels and loops that are turned OFF Example C 101 VT_BSTR Item Description Allows retrieval of the tag strings specified on the DX D
56. nput bias measured value 2 input bias measured value 1 input filter measured value 2 input filter or remote input filter Alarm setpoint Recording start stop Computation start stop Batch name with the batch option only Lot number with the batch option only Writing messages with the batch option only Output value of internal loops only internal loops Run Stop of internal loops Control mode of internal loops Switching Remote Local on internal loops Current SPNo of internal loops See next page IM 04L01B03 61E 1 1 Functional Overview of DAQOPC SP settings for each PID of the of internal loops Alarm setpoint for each PID of the of internal loops Proportional band P settings for each PID of the of internal loops Integral time I settings for each PID of the of internal loops Derivative time D settings for each PID of the of internal loops Output high limit for each PID of the of internal loops Output low limit for each PID of the of internal loops Manual reset value for each PID of the of internal loops Preset output value for each PID of the of internal loops Control direction settings for each PID of the of internal loops ON OFF control hysteresis setting for each PID of the of internal loops Measured value 1 input bias of the control loop Measured value 2 input bias of the control loop Remote input bias of the control loop Measured value 1 input filter of the control loop Measur
57. nterface Functions Specifying the data item RFL CX ItemID is specified as follows Device position control loops RFL Example DEVICE01 LoopZ RFL Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_12 2 5 VT_I4 100 VT_BSTR Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled EU Unit Allows retrieval of the engineering unit specified on the CX S Fixed 102 VT_R8 amp High EU Allows the retrieval of the upper limit within the selectable range 120 Fixed 103 VT_R8 Low EU Allows the retrieval of the lower limit within the selectable range _1 Fixed Specifying the data item RT CX ItemID is specified as follows Device position control loops RT Example DEVICE01 LoopZ RT Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_R8 5 5 VT_l4 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled 100 VT_R8 Hight EU Allows the retrieval of the upper limit within the selectable range 30000 Fixed 102 VT_R8 Low EU Allows the retrieval of the lower limit within the selectable range 0 0001 Fixe
58. ntrol It consists of a server that provides various data on the DX DX P MV CX and a general purpose interface used to access the server OPC applies OLE which is a standard method of communication between applications in the Windows environment to process control It allows the exchange of process data between multiple general purpose Windows applications Jf Ji DX DX P MV CX IM 04L01B03 61E 1 1 me 1 1 Functional Overview of DAQOPC DAQOPC Functions Functions Common to the Basic and Advanced Version Provides Data Access function DA the OPC interface DA function Reading and writing of the current value of the process data that uses ItemlD as the data identifier Starts and stops the OPC server in sync with the start and shutdown of Windows Supports the communication interfaces of the DX DX P MV CX which includes Ethernet RS 232 and RS 422 A The DX P only supports the Ethernet interface Allows a data update rate of up to 1 s However data update may not be possible at the specified rate depending on the communication conditions When retrieving data other than items PV SP OUT ALARM1 4 COMMON STATUS and COMMON PROP the server issues a query command to the connected device If the client requests the retrieval of these items to the server the data retrieval takes time and the load on the CPU on the server side PC increases You can read measured values computed values control setting val
59. of the specified VT_l2 Read Only Measurement and channel computation channels only DEVICExx CHxxx ATx Alarm type of the specified channel VT_I2 Read Only Measurement and computation channels only DEVICExx CHxxx ASPx Alarm setpoint of the specified VT_R8 Read Write Measurement and channel computation channels only DEVICExx Loopx PV PV of the specified loop VT_R8 Read Only CX control loops only DEVICExx Loopx SP SP of the specified loop VT_R8 Read Only CX control loops only DEVICExx Loopx OUT OUT of the specified loop VT_R8 Read Write CX control loops only DEVICExx Loopx ALARMx Alarm status of the specified loop VT_l2 Read Only CX control loops only DEVICExx Loopx ATx Alarm type of the specified loop VT_l2 Read Only CX control loops only DEVICExx Loopx RUN Run Stop switching of the specified VT_l2 Read Write CX control loops only loop DEVICExx Loopx MODE Control mode switching of VT_l2 Read Write CX control loops only the specified loop DEVICExx Loopx REMLOC Remote Local switching of VT_l2 Read Write CX control loops only the specified loop DEVICExx Loopx SPNO Current SP number of the specified VT_I2 Read Write CX control loops only loop and switching of the number DEVICExx Loopx PIDNO Current PID number of the specified VT_I2 Read Only CX control loops only loop DEVICExx Loopx PID SP SP of the specified PID of VT_R8 Read Write CX control loops only the specified loop DEVICExx Loopx PID ASPx Alarm setpoint of the specified PID VT_R8 Read Write
60. ommunication units of the same update rate exist they are scheduled in order every 1 s with the update rate as the maximum width H 1 Li 1 Schedule of 1 minute 1 minute 1 minute 1 minute data update data 1 update data 2 update data 3 l Li i 1 l Schedule of 10 second 10 second 10 second data update data 1 update data 2 I I I Schedule of 2 second 2 second 2 second data update data 1 update data 1 n second n 1 seccond n 2 second n 3 second 3 18 IM 04L01B03 61E 3 2 OPC Interface Functions Data change notification DAQOPC rules regarding the data change check for the data change notification are given below For data of which the type is VT_R8 measured and computed values PV if the ratio of the difference between the current cached data and the new value is greater than the deadband cached data is updated For data of which the type is VT_I2 alarm status ALARMx device status STATUS and property read status PROP if there is a difference between the current cached data and the new value cached data is updated 3 2 5 Group Object Properties IOPCGroupStateMgt Groups are provided as means by which the OPC client can efficiently access the process data via the DA server The OPC client is able to register arbitrary number of items in a group and in general this group is handled as a unit for process data access The handling of group object properties that are vender specific is i
61. on Yes Methods CreateBrowser Creates a browser object Yes GetErrorString Gets the error string Yes QueryAvailbleLocalelDs Gets a list of supported locale IDs Yes QueryAvailableProperties Gets a list of properties Yes GetltemProperties Gets properties Yes LookupltemIDs Converts the ltemID of properties No Events ServerShutDown Shutdown event Yes Yes Supported No Not supported IM 04L01B03 61E suoljoung 19M3S Vd DdOOVA 3 2 OPC Interface Functions Object Type Name Description Support Organization Hierarchical type Yes Filter Filter specification Yes DataType Data type Yes Properties AccessRights Access rights Yes CurrentPosition Current position Yes Count Number of collections Yes Item Gets the object Yes OPCBrowser ShowBranches Gets a list of current positions Yes ShowLeafs Gets a list of current positions Yes MoveUp Moves the hierarchy Yes Methods MoveToRoot Moves the hierarchy Yes MoveDown Moves the hierarchy Yes MoveTo Gets the absolute position Yes GetltemID Gets the ItemID Yes GetAccessPaths Gets access paths Yes DefaultGrouplsActive Default active property Yes DefaultGroupUpdateRate Default cache update Yes DefaultGroupDeadband Default deadband Yes Properties DefaultGroupLocalelD Default locale ID Yes DefualtGroupTimeBias Default time bias Yes Count Number of collections Yes OPCGroups Item Gets the group object Ye
62. ox Set the following items on the Ethernet Setting dialog box Ethernet Setting I Use time out r Start and connect Time out 3000 msec Time out for communication Auto retry function ae Retry 0 times TEE M Use Time out Retry Cancel Use Time out Select this check box when setting a timeout Start and Connect Set the timeout time and the retry count for establishing connection at the startup of the server These values also apply to the reestablishment of the connection when 2 is written to Common Status You can set 1 ms to 60000 ms for Time out You can set 0 to 10 times for Retry When connection is established retry is stopped before the specified count is reached If Retry is set to 0 and the connection fails the communication fails and the connection is not retried Time out for communication Select this check box to set the timeout for the communication error when retrieving data or requesting write operation after connection You can set 1 ms to 60000 ms for Time out Auto retry function Select this check box to reestablish the connection when retrieving the next data or requesting the next data write operation when communication failed or communication error occurred The settings for Time out and Retry are the same as those for Start and Connect Note With the DX P if the password is incorrect neither automatic recovery nor manual recovery through writing to the item STATUS i
63. pped or computation stopping Computation executing or computation start Computation reset U N O In the case of a communication error the value prior to occurrence of the error is held Item name Name Specifiable tag COMMON Displays the batch name Up to thirty two characters can be used on the DX P or up to sixteen on the CX DX In the case of a communication error the value prior to occurrence of the error is held No check is performed on the server side to determine whether or not the input value is allowed Item name LotNo Specifiable tag COMMON Displays the lot number In the case of a communication error the value prior to occurrence of the error is held No check is performed on the server side to determine whether or not the input value is allowed Item name Direct Specifiable tag MESSAGE Executes writing of the message set on the main unit Enter a message number Set to 0 when Read Access path OPC defines access path for distinguishing the COM Component Object Model ports but the DAQOPC DA Server does not use it Blob OPC defines a parameter called Blob to increase the efficiency of ItemID searches but the DAQOPC DA Server does not use it IM 04L01B03 61E suoljun 19A49S YA DdOOVA 3 2 OPC Interface Functions 3 2 4 Data acquisition operation DAQOPC supports the following OPC specified data reference interfaces lOPCSynclO lIOPCASynclO2 lOPASynclO Old Regarding the da
64. rieve the time Selection on the Configurator Description Time of the device DX MV CX Retrieves the time of the device Time of the PC Retrieves the time of the PC in which the server for retrieving the data is installed in UTC t Several commands are issued when data is retrieved The time of the data registered in the group corresponds to the time of the device that is retrieved by the first command issued Therefore the time of the device may not be applied correctly depending on the item Several commands are issued when data is retrieved The time of the PC corresponds to the time when all the items registered in the group are retrieved IM 04L01B03 61E suoljoung 19M3S Vd DdOOVA 3 2 OPC Interface Functions 3 2 3 ItemID An arbitrary string used to identify items Itis generally called tags Defining the ItemID DAQOPC defines ItemIDs as follows Device tag number data item Example DEVICE1 CH001 PV The DEVICE section is fixed In the number section that follows specify the device position that you assigned using the Configurator A list of temIDs On DAQOPC the following items can be accessed using ItemIDs ItemID Description Canonical Access datatype Rights Notes DEVICExx CHxxx PV Measured value or computed result VT_R8 Read Only Measurement and computation channels only DEVICExx CHxxx ALARMx Alarm status
65. rror Codes The error codes that DAQOPC specifies are shown below Number Message Description 0xC0049001 Fail to allocate memory Failed to allocate memory area 0xC0049002 Fail to read configuration file Failed to load the communication setup file 0xC0049003 Selected device doesn t exist A nonexistent device is specified by the Configurator 0xC0049004 Fail to open device Failed communications at startup 0xC0049005 Communication error A communication error occurred 0xC0049006 Irrelevant value Invalid value was input for communication input data 0xC0049007 Fail to get time stamp from PC Failed to get the time stamp from the PC 0xC0049008 Selected item doesn t exist Non existent item is being specified 3 46 IM 04L01B03 61E Index Index Po ACCESS path ionini 3 17 Automation Interface ssessessssssessreseeernrresrnernesrnerneseneenerea 3 3 B a o REEE ES AT A A 3 17 Br WSIN O eniesisne giae iia aa 3 45 C gt Cached data update eeeeeeeeeieeeeeiei rererere 3 18 Custom Interface 0 0 eeeeseeceeseceeeneeeeecneeseeeeeesaeeeeenaeeaeeaes 3 2 D DA Serve ieee inni a DAQOPC configuration WINdOW ceceeeceeeeeteeeeeeeees Data Access Method via the OPC Interface Data acquisition Operation esee Data change notification eceeceeeeeeeeeceeeeeeeeeeeneeeeeaaes Defining the IteMID o eee eee c
66. s Add Adds a group Yes GetOPCGroup Gets the group object Yes Methods Remove Deletes the group Yes RemoveAll Deletes all groups Yes ConnectPublicGroup Gets the public group No RemovePublicGroup Deletes the public group No Yes Supported No Not supported IM 04L01B03 61E 3 2 OPC Interface Functions Object Type Name Description Support Name Group name Yes IsPublic Public property always FALSE No IsActive Active property Yes IsSubcscribed Asynchronous property Yes ClientHandle Client handle Yes Properties ServerHandle Server handle Yes LocalelD Locale ID Yes TimeBias Time bias Yes DeadBand Deadband Yes UpdateRate Cache update rate Yes OPCltems Item collection Yes OPCGroup SyncRead Performs a synchronous read Yes SyncWrite Performs a synchronous write Yes AsyncRead Performs an asynchronous read Yes Methods AsyncWrite Performs an asynchronous write Yes AsyncRefresh Refreshes Yes AsyncCancel Cancels asynchronous request Yes DataChange Change notification Yes AsyncReadComplete Asynchronous read response Yes Events AsyncWriteComplete Asynchronous write response Yes AsyncCancelComplete Cancel response Yes Yes Supported No Not supported IM 04L01B03 61E 3 5 suoljoung 19M3S Vd DdOOVA 3 2 OPC Interface Functions Object Type N
67. s allowed Please make note of this Also it is recommended that the password expiration period for users connected to the DX P be set to when the DX P main unit is turned OFF IM 04L01B03 61E 2 5 uoneiado SdOOVa so 2 2 Starting the Configurator and Setting Parameters Configuring the Recorder The Recorder Setting tab page is shown below DAQOPC Configurator File Settings View Help Not Connected RA NONE Not Connected MJ NONE Not Connected B NONE Not Connected E NONE Not Connected Boe Not Connected RJ NONE Not Connected BA NONE F connecter NON a J NON Not Connected J NONE e Not Connected NONE Not Connected J NONE Not Connected MJ NONE Not Connected NONE Not Connected MJ NONE iojxi Ether z localhost H ether localhost Ether localhost TA The following items are specified on the Recorder Setting tab page Make sure to set the Model Port and Address when connecting to the DX DX P MV CX Model Port Address Meas Ch Math Ch Int Loop PID NO Ext Loop Note Select the type of DX DX P MV CX to be connected Select the port to be connected For COM only the ports that are valid in the serial settings are displayed Only the COM ports that are set to Ethernet or RS 422 A are valid Note The DX P can only select Ethernet Select the number of measurement channels of the DX DX P MV CX to be connecte
68. ssion loops or loops whose manual reset cannot be set are specified the value is 0 Item name PIDxPO CX only Specifiable tag Control loop PID If control mode is OFF or if the analog retransmission loops or loops whose preset output cannot be set are specified the value is 0 Item name PIDxDR CX only Specifiable tag Control loop PID Reverse 1 Direct 2 If control mode is OFF or if the analog retransmission loops are specified the value is 0 Item name PIDxH CX only Specifiable tag Control loop PID If control mode is OFF or if the analog retransmission loops or loops whose relay hysteresis cannot be set are specified the value is 0 suoljun 19A49S YA DdOOVA 3 2 OPC Interface Functions Item name INPUT Specifiable tag Communication input data Note When writing the real number writing value is converted to 4E format and sent Therefore please note that there are times when the write value is not sent as is Item name Value CX of style number S3 or later only Specifiable tag Control computation constant Note When writing the real number writing value is converted to 4E format and sent Therefore please note that there are times when the write value is not sent as is Item name STATUS Specifiable tag COMMON Indicates the status of the specified device see below Operating normally The specified device does not exist Failed to allocate memory area Failed to open communicat
69. t bias cannot be set or if control mode is OFF or analog retransmission loops are specified or if the measured value 2 input bias setting is OFF If the measured value 2 input bias is OFF when writing and a value other than 0 is input it automatically turns ON However even if 0 is entered you cannot turn it OFF IM 04L01B03 61E suolund 19A19S Vd DdOOVA 3 2 OPC Interface Functions Item name RBS CX of style number S3 or later only Specifiable tag Control loops The value is 0 if the remote input bias cannot be set or if control mode is OFF or analog retransmission loops are specified or if the remote input bias setting is OFF If the remote input bias is OFF when writing and a value other than O is input it automatically turns ON However even if 0 is entered you cannot turn it OFF Item name FL1 CX of style number S3 or later only Specifiable tag Control loops The value is 0 if the measured value 1 input filter cannot be set or if control mode is OFF or analog retransmission loops are specified or if the measured value 1 input filter setting is OFF If the measured value 1 input filter is OFF when writing and a value other than 0 is input it automatically turns ON However even if 0 is entered you cannot turn it OFF Item name FL2 CX of style number S3 or later only Specifiable tag Control loops The value is 0 if the measured value 2 input filter cannot be set or if control mode is OFF or analog retrans
70. ta acquisition functions used by these interfaces the DA server operation is described in depth in the OPC specifications The data acquisition operation of the DAQOPC basically complies with the OPC specifications The flow chart below outlines the operation of DAQOPC Limits of Data Acquisition Operation The data acquisition operation complies with the OPC specifications However if the acquisition request from the client software exceeds the specifications of the maximum number of data points of DAQOPC the process is temporarily suspended Therefore the desired response will not be obtained Cached data update The cached data is scheduled in units of the update rate as follows 1 The cached data is divided into update rate communication units the maximum number of data points that can be transferred each time 10000 2 Ifthe data and the update rate are the same it is scheduled once to avoid duplication 3 Each communication unit is scheduled as follows Each communication unit maintains its update rate Scheduling is dispersed so that duplication of communication units within the same second with the same update rate is avoided as much as possible up to a range of one minute Scheduling is performed so that duplication within the same second with communication units of other update rates is minimized The communication unit of each update rate is scheduled with the start point at each 0 s of the system time If multiple c
71. ta type of items VT_12 2 5 VT_l4 Item Access Rights Access level of item 1 Read only 6004 VT_I2 Alarm Type Allows retrieval of the type of alarm specified on the CX All OFF when alarms do not exist 0 Alarm OFF 26 Deviation within high amp low limits alarm 21 PV high limit alarm 27 SP high limit alarm 22 PV low limit alarm 28 SP low limit alarm 23 Deviation high limit alarm 29 Output high limit alarm 24 Deviation low limit alarm 30 Output low limit alarm 25 Deviation high amp low limit alarm For CX external loops Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_I2 5 VT_l4 Item Access Rights Access level of item 1 Read only 3 22 IM 04L01B03 61E 3 2 OPC Interface Functions Specifying the data item AT ItemlD is specified as follows Device name measurement computation channel or internal loop AT1 to AT4 Example DEVICE1 CHO1 AT1 DEVICE1 Loop1 AT1 Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_12 2 VT_l4 Item Access Rights Access level of item 1 Read only Specifying the data item ASP ItemlD is specified as follows Device name measurement computation channel or Loopx PID ASP1 to ASP4 Example DEVICE1 CH002 ASP1 DEVICE1 Loop3 PID2 ASP1 Property ID
72. table range value of EUS100 0 0 for loops that are turned OFF Example 2 0000 103 VT_R8 Low EU Allows the retrieval of the lower limit within the selectable range value of EUS 100 0 0 for loops that are turned OFF Example 2 0000 6006 VT_I2 Decimal Point Allows the retrieval of the number of digits to the right of the decimal point when displaying values 0 for loops that are turned OFF 3 34 IM 04L01B03 61E 3 2 OPC Interface Functions Specifying the data item BS2 CX ItemlD is specified as follows Device position control loops BS2 Example DEVICE01 LoopZ BS2 Property ID VARIANT type Description 1 VARTYPE Item Canonical Data Type Allows retrieval of VARIANT data type of items VT_R8 5 5 VT_l4 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled 6 VT_BSTR EU Unit Allows retrieval of the engineering unit specified on the CX Example C 102 VT_R8 High EU Allows the retrieval of the upper limit within the selectable range value of EUS100 0 0 for loops that are turned OFF Example 2 0000 103 VT_R8 Low EU Allows the retrieval of the lower limit within the selectable range value of EUS 100 0 Example 2 0000 6006 VT_I2 Decimal Point Allows the retrieval of the number of digits to the right of
73. terface Process data Application PC OPC client OPC serve OPC server DAQOPC DAQOPC Ethernet tT Ethernet Application size Mid to large size Performance The performance degrades slightly 20 to 30 per server when compared to when the OPC client exists on the same PC as the DAQOPC server This is because the DCOM Distributed Component Object Model is used to connect between the client and server Ethernet 1 4 IM 04L01B03 61E 1 1 Functional Overview of DAQOPC Hardware Requirements The following hardware is required for DAQOPC to operate properly PC model IBM PC AT compatible that can run Windows 2000 or 2 Windows NT pi CPU Pentium 300 MHz or later Windows 2000 2 Pentium 800 MHz or later Windows XP Main memory 256 MB or more Free disk space 1 GB or more Communication device RS 232 port supported by the OS Ethernet NIC not required if the OPC client and the DAQOPC server exist on the same PC and the RS 232 RS 422 A interface is used to retrieve data from the DX MV CX e Peripheral devices Mouse supported by the OS Software Requirements The following software is required for DAQOPC to operate properly OS Windows 2000 or Windows XP Professional The language version of the package DAQOPC must be the same both Japanese or both English as that of the operating system Windows 2000 or Windows XP Servicepack Windows 2
74. the device name tag number and data item in that order ItemID retrieval through GetltemID The following string is returned for GetltemID When a device name is specified Device name Example Device1 Cannot be used in IOPCltemMgt Addltems When a tag number is specified Device name tag number Example Device1 ch01 Cannot be used in IOPCltemMgt Addltems When a data item is specified Device tag number data item Example Device1 ch01 PV Can be used in IOPCltemMgt Addlitems Note The DAOPC browse information shown is that from the connected devices Browse information is automatically obtained at the timing at which the connection to the device could be made successfully including communications recovery time BrowseOPCltemIDs filter If you specify OPC_FLAT for the filter type the operation is the same as when both OPC_BRANCH and OPC_LEAF are specified Sorting is not performed on the list and there is no limit in the number of data points that can be entered in the list Therefore the larger the number of tag numbers more memory space is consumed In such case you can use the following types of filters to suppress the amount of memory that is consumed at any given time szFilterCriteria DAQOPC ignores this parameter dwAccessRightsFilter DAQOPC supports this parameter BrowseAccessPaths Since AccessPaths is not used this is not supported IM 04L01B03 61E 3 45 suoljun 19A49S YA DdOOVA 3 3 E
75. ues CX alarm statuses and other values as item IDs Capable of reading and writing communication input data as an ItemID administrator level only However for the DX P this is only for users using communication input data Allows access using DX DX P MV CX administrator and user levels By setting the communication status with the connected device to an ItemID the client is able to instruct a recovery after a power failure Retrieves span value unit tag alarm type and alarm setpoint as Property IDs of the ItemID The DAQOPC OPC server supports the OPC Data Access Version1 0A and 2 0 The DAQOPC OPC server supports the OPC DA Custom Interface The DAQOPC OPC server supports the OPC DA Automation Interface The DAQOPC OPC server supports the optional OPC DA browser function Browser function is used by the OPC client to browse the contents of the OPC server The DAQOPC OPC server can connect up to 24 DX DX P MV CXs Advanced Version Functions You can write the following items However control loop and control computation contstant items can only be written on the CX Also some items are not supported by certain styles of CX Accessing the DX P with the Advanced version is the same as that with the Basic version since the monitor function port number 34261 is used Supported by style 2 of the CX or later Supported by style 3 of the CX or later When PV SP computation is ON you cannot write the measured value 1 i
76. ware that is on the CD R All the brands or names of Yokogawa Electric s products used in this manual are either trademarks or registered trademarks of Yokogawa Electric Corporation Microsoft MS DOS Windows Windows 2000 and Windows NT are either registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries Adobe and Adobe Acrobat are trademarks of Adobe Systems Incorporated Adobe Systems Other company and product names are trademarks or registered trademarks of their respective companies For purposes of this manual the and symbols do not accompany their respective trademark names or registered trademark names 1st Edition November 2000 2nd Edition September 2001 3rd Edition May 2002 4th Edition November 2002 5th Edition December 2005 All Rights Reserved Copyright 2000 Yokogawa Electric Corporation IM 04L01B03 61E Checking the Contents of the Package Unpack the box and check the contents before operating the software If some items are missing or otherwise inconsistent with the contents description please contact your dealer or nearest YOKOGAWA representative Model and Suffix Code Model Basic Suffix Code Specification DXA410 DAQOPC OPC Server 0 OS Windows NT Workstation 4 0 NT Server 4 0 Windows 2000 Basic Version Japanese Basic Version English Advanced Version Japanese Advanced Version English RON Package Cont
77. y ID Record COMMON VARIANT type Description 1 OPC_PROP_CDT VARTYPE 2 Data Type Allows retrieval of VARIANT data type of items VT_12 2 5 OPC_PROP_RIGHTS VT_14 3 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled Specifying the data item Math COMMON ItemID is specified as follows Device name COMMON Math Example DEVICE1 COMMON Math Property ID VARIANT type Description 1 OPC_PROP_CDT VARTYPE 2 Data Type Allows retrieval of VARIANT data type of items VT_12 2 5 OPC_PROP_RIGHTS VT_14 3 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled 3 40 IM 04L01B03 61E 3 2 OPC Interface Functi ons Specifying the data item Name ItemlD is specified as follows Device name Batch Name Example DEVICE1 Batch Name OPC_PROP_RIGHTS Property ID VARIANT type Description 1 VARTYPE 2 Data Type OPC_PROP_CDT Allows retrieval of VARIANT data type of items VT_BSTR 8 5 VT_14 3 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled Specifying the data item Lot No ItemlD is specified as follows Device name Batch LotNo Example DEVICE1 Batch LotNo OPC_PROP_RIGHTS Propert
78. y ID VARIANT type Description 1 VARTYPE 2 Data Type OPC_PROP_CDT Allows retrieval of VARIANT data type of items VT_14 3 5 VT_14 3 Item Access Rights Access level of item Basic version 1 read only Advanced version 3 read write enabled OPC_PROP_LOEU 102 VT_R8 5 Hight EU OPC_PROP_HIEU Allows the retrieval of the upper limit within the selectable range DX CX 9999 Fixed DX P 99999999 Fixed 103 VT_R8 5 Low EU Allows the retrieval of the lower limit within the selectable range 0 Fixed Specifying the data item Direct ItemlD is specified as follows Device name Batch Direct Example DEVICE1 Batch Direct Property ID VARIANT type Description 1 VARTYPE 2 Data Type OPC_PROP_CDT Allows retrieval of VARIANT data type of items VT_12 2 5 VT_14 3 Item Access Rights OPC_PROP_RIGHTS Access level of item Basic version 1 read only Advanced version 3 read write enabled IM 04L01B03 61E 3 41 suoljoun 13M3S Vd DdOOVA 3 2 OPC Interface Functions Specifying the tag number measurement channel ItemID is specified as follows Device name measurement channel Example DEVICE1 CHO001 Cannot be registered in a group Property ID VARIANT type Description 101 VT_BSTR Item Description Allows retrieval of the tag strings specified on the DX DX PMV CX Example Furnace 1

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