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Manual EP-Modbus/ EP-COM OPC Server

1. Figure 15 The address space of the EPModbus OPC server example Port is equivalent to a physical serial port in the computer Device is equivalent to a physical device connected to the serial port Folder is an object that can group items that logically belong together It does not have any direct representation in the Modbus protocol Folders can be used any way that is suitable to the application for example folder of analogs digitals and so on Three levels of folders are allowed Data Item represents a register in the device or a range of registers Page 44 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Exicom ProVicom OPC Server 7 5 3 How the server works An OPC client can connect to the server browse the address space and logically organize requested items to groups The client can create any organization of items The way that the items are organized can influence the performance of the server The server periodically updates each group of items The group parameter RequestedUpdateRate specifies the update period This parameter is common for all items in a group and is set by the client program The server uses optimization methods while reading values from the devices The server tries to optimize the communication with the devices by requesting as much data as possible in one message This optimization can be used only for one device at the same time For this reason it is recommended to organize
2. SAE STAHL GMBH Im Gewerbegebiet Pesch 14 D 50767 K ln Tel 49 221 59808 200 Fax 49 221 59808 60 http www sae stahl de E mail office sae stahl de Manual EP Modbus EP COM OPC Server Manual EP Modbus EP COM OPC Server Article No Version 1 00 Prerelease Edition 24 01 01 Publisher and copyright by SAE STAHL GMBH K ln Im Gewerbegebiet Pesch 14 D 50767 K ln Phone exch 49 0 221 5 9808 200 hotline 59 Facsimile 60 e All rights reserved e This document may not be reproduced in whole or in part except with the written approval of the publisher e Technical changes may be made at any time without prior announcement Every care has been exercised in compiling this Manual SAE STAHL GMBH cannot be held responsible for any errors or omissions contained in this Manual IBM is a registered trademark of IBM Corp MS DOS WINDOWS 95 WINDOWS 98 WINDOWS NT MICROSOFT ACCESS are registered trademarks of MICROSOFT Corporation Cologne dated 24 01 01 Page 2 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Contents Contents 1 IAITOQUCUON eege 6 1 1 EE 6 1 2 Product iniroduclion nenne nes ra 7 1 2 1 What is EP Modbus2 nkee ek 7 1 2 2 UE EK 7 2 Before YOU SIArE A e aa e a a eee e dadeau adadda ud daeu iddia 8 2 1 Delivery Ee 8 2 2 Software license agreement eee eee rien 9 3 Instala ON E 12 3 1 The OPC server packages content 12 3 2 System re
3. DEZ 1 F5 1 F A ID_01 A ID_02 A ID_03 A ID_04 A ID_05 A ID_06 A ID_07 A ID_08 A Keyb_SPC_O ab Name_01 fab Name_02 fab Name_03 fab Name_04 fab Home D fab Home D fab Home Di A Page A Position A ProductlD A Quantity A Quantity_01 E Figure 4 The address space of the EPModbus OPC server SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 31 of 79 Configuration procedure example application Manual OPC Server 5 4 EPCom configuration database 5 4 1 Device The device name is set to Station_1 As a communication driver is selected EPModbus OPC server Update rate is set to 100 ms 5 4 2 Data Items The first data item is ProductID that corresponds to the ProductID variable of the MT300 The type of the data item is set to IN because only the user of the MT300 can change this variable As a value source the ProductID source from the EPModbus OPC server address space is selected This source should be updated only when the ProductID page is active the page source is equal to 1 The canonical data type of the data item is set to VT_I2 integer EMEPCom_MT300_OPCExample EPComCont File Edit View Go Tools Help DST K Gail gt Eee Station SAESTAHLGmbh EPModbusDA PortA Station_1 Status CJ Station_1 ProductID ProductlID_NameQuantity ProductList_All ProductList_F1 ProductList_F3 ProductList_F5 System_Keyb System_Page Al Ready 11 Object
4. browsing the data To view available records in any selected window use a command from a list that appears in the Go menu or use the Arrow PageUp Down Home End keys for moving in the tree view in combination with Alt key Up One Level command moves the cursor one level closer to the root of the tree Next Pane or Previous Pane allows users to loop through panes if more than one is displayed SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 51 of 79 Exicom ProVicom OPC server configurators Manual OPC Server 8 1 6 Tools menu 8 1 6 0 1 Options command Options dialog within Tools menu contains Workspace parameters Options EN General m worl E hen selection is changed IV Enable hover selection Hover Time l 500 ms Monitor view settings Update Rate l 500 ms Cancel Figure 21 Options command Save regional settings in registry enables disables the configurator to save active language chosen from the Select Language dialog into registry and set it up during initialization Automatically apply changes when selection is changed If checked the configurator itself tries to update the edited data without requiring clicking on Apply button and displaying the confirmation dialog Enable hover selection Hover time Allow configurator support automatic selection of the item above which the mouse is hovering Enter Hover time parameter in milliseconds
5. 0 4 Status item ID If specified then EPCom server periodically writes its current status to this source Status information values 0 reserved 1 server running 2 reserved 3 reserved 8 3 1 0 5 Update status period Specifies period of updating of the status source defined in the Status item ID field SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 61 of 79 Exicom ProVicom OPC server configurators Manual OPC Server 8 3 2 Data Items Dataltem corresponds to one EPDevice source e g variable in the EPDevice It can also correspond to a group of EPDevice sources New data item requires configuration of the following properties e Type Value sources Value format Value buffer Conditions lt P gt PorA Station_1 Page Figure 29 The Data items configuration table 8 3 2 0 1 Type The type defines access rights of the data item It can be set to one of the following values e IN Read only s OUT Read Write Page 62 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Exicom ProVicom OPC server configurators 8 3 2 0 2 Sources Sources represent the EPDevice sources that create the value of the data item These sources are selected from the address space of the communication driver that is defined in the parent device Use buttons Add Insert and Remove to add or remove a source from the list Use button Props to change the properties of the selected source In the dialog box for s
6. Each connected Exicom ProVicom device is defined in a stand alone project database This database defines application of the device pages variables process connections This project database is the leaf database More than one device can be connected to the server more than one leaf database can be linked to the root database E P OPC Server project database Root Station project database Leaf StationN project database Leaf Figure 36 The hierarchy of the SPSPlusWin databases 10 2 1 The root database This database defines Communication drivers on selected communication channel Exicom ProVicom devices connected to the communication drivers The OPC server supports only OPC_MODBUS driver This driver can be selected for each of the four communication ports For each communication port can be defined up to 247 devices stations Each device is defined by the Station address and the name of the SPSPlusWin project database that defines the Exicom ProVicom device see Figure 35 10 2 2 The leaf database The leaf database defines the application of the Exicom ProVicom device The application is complex set of pages messages variables process connections and drivers Exicom ProVicom device can use multiple drivers at the same time for example it can communicate with PLC on one channel and with OPC server on another channel As mentioned above the root database has reference to the leaf database Stat
7. OPC DA Custom Client You can enter values in the terminal or press the function keys and the changes are displayed in the OPC client You can enter values in the client with the command OPC Write Value to Item and the value is displayed in the terminal Select OPC Server B ICONICSInc DPCTestDA Cancel ICONICSInc OPCTestDA 2 SAESTAHL EPTcpipDA SAEST HL EPTcpipD amp 2 SAESTAHLGmbh EPComDA SAESTAHLGmbh EPComDA 2 SAESTAHLGmbh EPModbusD SAESTAHLGmbh EPModbusD Shell Server Si T Use OPC 1 0a Interfaces Figure 2 Connect to the OPC Server Page 26 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Getting started When you have made changes in the EPModbus configuration database you can t use the file EPModbusMT45 opc You can open the OPC server with the command OPC gt Connect Please select the OPC server SAESTAHLGMBH EPModbusDA Add Item B Access Path Item Name Ports MT_45 IntVarSend Cancel Browse items Filter i E Port MT_45 Data Type Use native type C Long Bool C Double C Short String Figure 3 Add an Item You can add the data items with the command OPC Add Item With this command you can browse through the address space of the OPC server and select the items SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 27 of 79 Configuration procedure example application Manual OPC Server 5 Configuration procedure example application This cha
8. Update rate Specifies the update frequency of Monitor View items 8 1 7 Popup menus Instead of using the standard menus to find the command you need you can also use the right mouse button clicking on the item in the list or tree view Popup menu that appears shows the most frequently used commands that are New Rename Multiply Cut Copy Paste and Dialog Monitor View Page 52 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Exicom ProVicom OPC server configurators 8 2 Configuration of the EPModbus address space Modbus is a serial communication protocol allowing connection of 247 devices on a serial line There is always one device controlling tne communication Master The rest consists of slave devices Slaves Every device is identified by its unique address The modbus protocol enables to access four register types Inputs 1 bit read only Input Registers 16 bits read only Coils 1 bit read write and Holding Registers 16 bits read write Each register type has 16 bit address space The address space tree of the EPModbus server has following levels Ports Devices Folders Data items 8 2 1 Ports Port is equivalent to a physical serial port in the computer To correctly configure port means to set file name port communication speed baudrate and protocol characteristics such as transmission mode RTS flow control Stop bits and Parity scheme If Parity checking enabled is
9. after user The provisions of 3 shall apply mutatis mutandis if the program package is passed on by the after user to another after user SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 9 of 79 Before You start Manual OPC Server 6 Other rights Any right to use or exploit the program package beyond the right granted under the preceding paragraphs especially those under 15 and 34 copyright act are reserved 7 Warranty 1 It should be noted that it is not possible to develop data processing programs free of fault in all later application environments Seller represents that the program as described in the manual effective at the time at which it is delivered to Buyer can be used and has the attributes assured therein Any insignificant impairment of the usability does not limit usability generally 2 Seller warrants that the original program has properly been recorded on a verified volume 3 If it shall be found that the program package is not usable within the meaning of paragraph 1 or is defective within the meaning of paragraph 2 Buyer may require within a warranty period of six months beginning from the delivery of the program package that Seller receive back the delivered program package and supply instead a new program packages of the same type and description If it shall be found that the program package supplied in replacement of the unusable or defective program package is also not usable within the meaning of paragraph
10. as Baudrate Databits Stopbits Parity and StationNo The meaning of the other parameters of the OPC Modbus driver is following Timeout read write timeout period length the driver will wait for response TimeoutsToSuspend the number of subsequent timeouts to suspend a station from the pool cycle SuspendPeriod the time interval the station is kept in suspended state Max merge bits maximum block length of unused adjacent bits that can be transferred in one message Max merge words maximum block length of unused adjacent registers that can be transferred in one message e For each communication port define connected stations Station parameters Figure 35 The station parameters The field Station name should contain the name of an existing SPSPlusWin project that defines the connected station The modbus address of the station should be defined in the field Station number s From the menu Project select function Generate SPSPlusWin creates two configuration databases EPCom mdb and EPModbus mdb These databases are stored in the current project directory SPSPlusWin Projects ProjectName SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 69 of 79 Configuration using SPSPlusWin Manual OPC Server 10 2 The hierarchy of the SPSPlusWin projects The Project database of the device E P OPC server defines the driver and connected Exicom ProVicom devices This project database is the root database
11. following administrators can be used e EPModbus Administrator e EPCom Administrator The Administrator is a simple application that allows viewing or setting of the active configuration file of the server It stores also a list of recently used configurations and it enables switching between several often used configurations It is possible to change the current configuration database directly from the configurator using Make Active command The administrator should be used mostly for security purposes it can not change the contents of the configuration database as it is possible in the configuration module 2 SAESTAHL EPCom Administrator B Configuration file name E1EPComMT300_Testmab Browse et Figure 32 The EPCom administrator SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 67 of 79 Configuration using SPSPlusWin Manual OPC Server 10 Configuration using SPSPlusWin The configuration databases of the EPModbus and EPCom OPC servers can be also generated in the environment of the SPSPlusWin engineering tool 10 1 Step by step procedure s Select E P OPC server target device Target device MT J Redis12 Redis22 E m Figure 33 Target device dialog s For each used communication port define driver OPC Modbus Figure 34 The Port parameters dialog Page 68 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Configuration using SPSPlusWin There are standard parameters such
12. items of the same device in the same group If the server detects that a device doesn t response then the device is suspended and the corresponding items are not updated The server periodically tries to connect to the devices at specified suspend period This approach minimizes the update cycle while some of the devices are disconnected SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 45 of 79 Exicom ProVicom OPC Server Manual OPC Server 7 6 EPCom OPC server 7 6 1 Purpose Exicom ProVicom devices are operator terminals they have a display and a keyboard The application of the terminal usually uses hundreds of variables that are organized in many pages The user goes through pages using keyboard displays current values and types new values of the variables The task of the OPC server is to cache the current state of the variables The server can update variables in two different ways 1 It periodically reads the current state of all variables 2 It periodically reads the current state only those variables that can be changed by the user input variables displayed on the current page keyboard state system variables required to be updated permanently and so on The first way is simple but it is convenient only for small amount of variables The second way is optimal for rising number of variables and devices EPCom OPC Server implements some useful functions that solve this problem EPCom OPC server is an extension of
13. network network access 6 1 2 OPC Servers OPC servers can be divided into three types OPC DataAccess Server OPC Alarm amp Event Server OPC HistoricalData Server OPC DataAccess Servers provide the access mechanism for OPC Clients to get the current state of the device sources OPC Alarm amp Event Servers provide the mechanisms for OPC Clients to be notified of the occurrence of specified events and alarm conditions OPC HistoricalData Servers provide data compression as well as raw data storage SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 35 of 79 Introduction to OPC servers Manual OPC Server 6 1 3 OPC Server Interfaces C Application OPC Custom I F OPC Server In Proc Local Remote Vendor Specific Logic Handler VB Application OPC Automation I F Figure 6 The OPC Interfaces An OPC client application communicates to an OPC server through the specified custom and automation interfaces The custom interface can be used by function pointer oriented languages such as C The automation interface can be used by script languages such as Visual Basic OPC servers must implement the custom interface and optionally may implement the automation interface OPC Foundation provides a standard automation interface wrapper which can be used with any custom server VB OPC Automation OPC Application 4 meras Automation Local or Remote Wrapper Shared by many clients Serv
14. s NUM 7 Figure 5 The address space of the EPCom OPC server The next data item ProductID_NameQuantity corresponds to Name and Quantity variables on the ProductID page The type of the data item is set to OUT because the value of this item should be written by the client program and displayed on the MT300 As value sources Name and Quantity sources from the EPModbus OPC server address space are selected These sources should be updated only if the ProductID page is active if page source is equal to 1 The canonical data type of the item is set to VT_BSTR string The client can write the value for both variables in one string The values should be delimited with the delimiter character 7 The next data item ProductList_All corresponds to all variables from the ProductList page The type of the data item is set to OUT It allows access for reading and writing As value sources all sources from the EPModbus OPC server address space that correspond to the variables placed on the ProductList page are selected These sources should be updated only when the ProductList page is active if page source is equal to 2 Page 32 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Configuration procedure example application The data items ProductList_F1 ProductList_F3 and ProductList_F5 correspond to the function keys F1 F3 and F5 of the MT300 The type of these data items is set to IN because it has no sense to write to
15. the EPModbus OPC server If the client uses the EPCom server the EPModbus is used automatically as the communication driver but this can be changed in the configuration database EPCom server controls the underlying EPModbus according to user defined conditions It enables for example to transfer data only from variables defined on the current page of the device or if a key is pressed This can minimize the transfer on the communication line only to necessary activities EPCom enables also to group more sources from EPModbus into one data item e g data item can represents all variables of one page Page 46 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Exicom ProVicom OPC Server 7 6 2 Address space hierarchy The address space tree of the EPCom OPC server has following hierarchy Devices Data Items Figure 16 The hierarchy of the address space Device corresponds to one Exicom ProVicom device Data Item groups one or more OPC sources into one item It corresponds to one or more Exicom ProVicom variables e g placed on the same page a t Il Station_1 ProductlD ProductID_NameQuantity ProductList_All ProductList_F1 ProductList_F3 ProductList_F5 System_Keyb System_Page Figure 17 The address space of the EPCom OPC server example SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 47 of 79 Exicom ProVicom OPC server configurators Manual OPC Server 8 Exicom ProVicom OPC s
16. 1 The architecture of the Exicom ProVicom OPC server The Exicom ProVicom OPC server consists of two levels e EPModbus OPC Server e EPCom OPC Server EPModbus OPC server implements MODBUS communication protocol This server enables to access each variable defined in the application of the Exicom ProVicom device It allows the communication simultaneously on 4 communication channels Up to 247 devices can be connected to each channel EPCom OPC server controls the underlying EPModbus OPC server according to the user defined conditions For example it enables to transfer data only from variables defined on the current page of the device or only if a key was pressed and so on This can minimize the transfer on the communication line to necessary activities Also EPCom server enables to create records of more variables This on the other hand can minimize the transfer between the client program and the server The client program should use only one of these servers either EPModbus or EPCom EPCom itself is an extension of the EPModbus server and implements some useful functions If the client uses the EPCom server the EPModbus server is used automatically by the EPCom server EPCom server is an OPC client of the EPModbus server SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 41 of 79 Exicom ProVicom OPC Server Manual OPC Server 7 4 Address space and configuration database Address space of an OPC server is a set of data i
17. 1 or is defective within the meaning of paragraph 2 and provided the entitled person fails to restore the usefulness with reasonable effort and within reasonable time then and in such case Buyer or user as the case may be shall be entitled at its option either to a reduction of the purchase price or return of the program package and reimbursement of the purchase price 4 Paragraphs 1 3 also apply to further users as intended by 3 Warranty begins at the time defined in 3 not at the time the program package is delivered to the further user 5 There is no other warranty except that described above In particular no warranty is made that the program package meets the specific Buyer requirements Buyer shall have sole responsibility for the selection installation and use as well as for the results intended by these Further no warranty is made for any modified or revised versions of the program 8 Liability 1 Seller is liable for damage for which he or the entitled person may be responsible up to an amount equal to the purchase price No liability is undertaken for lost profit unrealized savings indirect damage or consequential damage of any kind 2 The above limited liability does not exist for warranted features or damage due to intent or gross neglect Page 10 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Before You start 89 Comprehensive retention of title 1 The program package as delivered remains Sel
18. AESTAHLGmbh EPModbus and SAESTAHLGmbh EPModbus 2 The first one is a version independent ProgID the second one is a version depended ProgID 11 2 3 Sheet2 Server status After this sheet is activated it is connected to the server specified in the C2 cell and the current status information of the server is displayed ad OPCExampleClient SAESTAHLGmbh EPModbusDA 16 05 00 05 24 Running Band width Major version Minor version Vendor info SAE STAHL GMBH EPModbusDA D H List of OPC DA Servers Server Status Server Items Product list dal DI re Figure 46 Server status sheet SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 77 of 79 OPC Clients Manual OPC Server 11 2 4 Sheet3 Server items After this sheet is activated it is connected to the server specified in the C2 cell and the first ten items from the server address space are monitored current value quality time stamp data type active state client and server handles OPCExampleClient 5 Good FALSE Good FALSE Good FALSE Good FALSE Good 1 Good 2 Good 3 Good 4 Good 5 Good Figure 47 Server items sheet Page 78 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server OPC Clients 11 2 5 Sheet4 Viewing and editing the product list This example demonstrates situation when Exicom ProVicom device is used to acces
19. OPC Data Access Automation Specification 2 02 OPC Foundation February 1999 The OPC Alarm and Event Access Specification 1 0 OPC Foundation The OPC Historical Data Access Specification 1 0 OPC Foundation C D DU DU U Page 38 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Exicom ProVicom OPC Server 7 Exicom ProVicom OPC Server 7 1 Exicom ProVicom OPC server Exicom ProVicom OPC server is an out process OPC DataAccess server It enables OPC clients to communicate with SAE STAHL Exicom ProVicom devices Exicom ProVicom devices are operator terminals Operator terminal is a combination of display and keyboard and it permits man machine communication The server enables an OPC client to send requested data to the display of the terminal and to get data from the user that were entered using terminal keyboard barcode scanner or serial link OPC Client 1 OPC Client 2 lt gt I O Exicom ProVicom OPC Server COM DCOM Modbus Exicom ProVicom device Exicom ProVicom device RS422 RS485 Figure 10 The Exicom ProVicom OPC server The communication between the client and server is based on the COM DCOM technology DCOM enables remote connection client server over the network The server enables to access at the same time multiple Exicom ProVicom devices through PC serial communication channels It doesnt require any complement hardware The communication with the devices is control
20. PC Server Perform Uninstall E Figure 3 Uninstalling the OPC Server Page 18 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Getting started 4 Getting started 4 1 Example on the CD In this example the terminal MT 45 is used You find this example on the CD in the folder Examples OPC_MT 45 The folder containes following files s OPC_MT 45 zip Archive of the SPSplusWIN project s EPModbusMT45 mdb Configuration database of the EP Modbus Server e EPModbusMT45 opc OPCTestClient File of the OPC DA Custom Client You can use this example with other terminals when you change the terminal specific parts in this project files For further information about the terminals and SPSplusWIN please refer to the specific manuals SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 19 of 79 Getting started Manual OPC Server 4 2 The SPSplusWIN project To open the demo project please load the archive in SPSplusWIN with the command File gt Load Archive The project has one page with three input output fields which have references to variables with process connections For example The integer variable has the name IntVarSend with the address 100 Opc_MT 45 1 lolx H F Programme SPSPlusWIN_2 projec Group Page number Functions Softkey Fade out Comment zi Messages Variables 0 Typ der Sei m Pages IW Templates S Help pages fal Help templates Z Printprotocals Z Pr
21. The OPC item object is accessible as an object only from the automation interface perspective It enables to maintain the item status and to read and write to the item OPC Group OPC GroupM OPC Item 1 OPC Item 1 OPC Item N OPC Item L Figure 8 The hierarchy of the OPC Server objects All objects server object group objects and item objects are COM objects The methods of the objects are organized into logical groups interfaces These interfaces are common for all OPC servers The OPC servers must have implemented all required interfaces Some of the interfaces are optional Optional interfaces do not have to be implemented Custom interfaces of the objects are illustrated on the following figure Interfaces marked in brackets are optional lOPCltemMgtO OPC IOPCGroupStateMgt OPCPublicGroupStateMgt O Group loPCSyncloO object IOPCAsynclO O IOPCAsynclo2 O IOPCDataObject O IConnectionPointContainer O IOPCServer IOPCServerPublicGroups O IOPCServerBrowseServerAddressSpace O PersistFile O OPCltemProperties O IConnectionPointContainer O IOPCCommon O Figure 9 The interfaces of the OPC server objects SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 37 of 79 Introduction to OPC servers Manual OPC Server 6 2 References Microsoft COM specification available at Microsoft s ftp site The OPC Data Access Custom Specification 2 03 OPC Foundation July 1999 The
22. a function key As value sources corresponding key sources from the EPModbus OPC server address space are selected These sources should be updated only when ProductList page is active if page source is equal to 2 The maximum of 32 values of the data item should be buffered The canonical data type of the data items is setto VT_BOOL The data items System_Keyb and System_Page correspond to the KEYB_SPC_O and PAGE variable of the MT300 application As value sources are selected corresponding sources from the EPModbus OPC server address space These sources should be updated permanently SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 33 of 79 Configuration procedure example application Manual OPC Server 5 5 The OPC client MSExcel workbook OPCExampleClient is used as a client program This client was described in the chapter 0 71 2 OPC DA Automation client The VBA script of this workbook creates a connection with the EPCom OPC server when the sheet ProductList is activated It creates a new private group in the server and adds following items from the EPCom server address space to the group Station_1 System_Keyb Station_1 System_Page Station_1 ProductID Station_1 ProductID_NameQuantity Station_1 ProductList_All Station_1 ProductList_F 1 Station_1 ProductList_F3 Station_1 ProductList_F5 These items are set to be active The update rate of the group is set to 1000 ms The rest of the time the client processes the subscripti
23. ace port device folder data item support process of simulation Simulate check box Parent list in the tree is superior has higher priority when deciding to simulate the data item or not In other words data item is simulated if it itself has a Simulation checked or if any of its parents has Simulate checked it may be simulated even if its Simulate check box stays unchecked 8 2 4 0 5 Manual If checked data item will offer constant parameter value because Manual setting is of the highest priority The changes in the configuration take effect only when the server reloads the configuration on startup Page 56 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Exicom ProVicom OPC server configurators 8 2 5 Device Parameters Device Parameters directory contains the list of custom device types Device parameters influence the behavior and performance of the server for the device Figure 25 The Device parameters table The meaning of numbers in the device parameters dialog is the maximum amount of data that can be transferred in one message Setting the value equal to zero means force the server to use single read write messages only The server also allows configuring following additional properties for each device type Word swap Swaps the first word with the second when reading writing DINT UDINT or float values Swap bits Reverses the order of bits in word sized values least si
24. ae euere 70 10 2 2 The leat database u 70 10 2 3 The generated configuration databases A 71 11 OPC e TT aaa anna aa aaaannnnnnnun 72 11 1 OPC Custom client TTT 72 11 1 1 How to connect to a Server eee eee eee 73 11 1 2 How to display server status information see eee eee 73 11 1 3 How to change group parameters EEN 74 11 1 4 How to add a new item to the Server group sss eee ee eee eee 75 11 1 5 How to write a value to the tem 75 11 2 OPC DA Automation client ee eee eee 76 11 2 1 How to run the OPGExampleGlient eege ead ae enna een 76 11 2 2 Sheet1 List of OPC DA servers ee 77 11 2 3 Sheet2 Server status tee ee ege Eege 77 11 2 4 Sheet3 Server itemS au arena ee een 78 11 2 5 Sheet4 Viewing and editing the product let 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 5 of 79 Introduction Manual OPC Server 1 Introduction 1 1 Readers guide Chapter 1 shortly intoduces the products EP Modbus and EP COM Chapter 2 gives important information you should notice before installing the software Chapter 3 leads through the installation and deinstallation procedures Additionally the software modules of the program package and the system requirements are listed Chapter 4 describes how to Chapter 5 illustrates on a simple example the configuration procedure It describes step by step how to configure the Exicom ProVicom OPC server Chapter 6 gives some background information about the OPC ter
25. al with the variables defined in the SPSplusWIN project For example The variable IntVarSend is from the type Integer and has the address 100 SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 25 of 79 Getting started Manual OPC Server 4 4 The OPC DA Custom Client Please open the OPC client with the start menu Start gt Program SAE STAHL Exicom ProVicom OPC Server OPC DA Custom Client Open the file EPModbusMT45 opc with the command File gt Open Connect the terminal with the PC the OPC server is running After starting the terminal you should see a picture like Figure 1 When you have a Bad quality the communication between OPC server and terminal is not correct Please check the connection to the terminal and check the communication parameters of the OPC server and the terminal EB EPModbusMT45 opc OPC Test Client BE EI File OPC View Help zs Ss pls Port amp MT_45 Key_F1 Off YT_BOOL 13 54 01 861 PortA MT_45 Key_F2 Off T_BOOL 13 54 02 451 Port amp MT_45 Key_F3 Off T_BOOL 13 54 04 821 Port MT_45 Key_F4 Off T_BOOL 13 54 06 641 Port MT_45 Key_F5 Off T_BOOL 13 53 59 161 PortA MT_45 Key_F6 Off T_BOOL 13 53 57 961 Port MT_45 Key_F7 Off T_BOOL 13 53 55 151 Port4 MT_45 Key_F8 Off T_BOOL 13 53 54 161 Port4 MT_45 IntVarSend 5846 VT 121 12 22 22 228 Port4 MT_45 UINTVarSend 12345 VT 14 12 22 22 288 Port amp MT_45 StringYarSend Hallo Welt YT_BSTR 12 22 22 338 Figure 1 The
26. ample of this dialog is on the picture below Multiply Item x First number A Numeric places E Cancel Number of items fi a Base text D efault Linear Item name eem Linear Figure 20 Multiply item command First Number The number appended to the first generated item name Following items will be numbered consecutively Numeric places The count of digits of the number appended to the item name Number of items The count of items to be generated Base Text String that the generated item names will start with Item name Path to data item in the left tree view pane Page 50 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Exicom ProVicom OPC server configurators 8 1 4 View menu View menu allows users to show hide toolbars such as Standard Buttons and Data Manipulation Buttons or a status bar The items in the list view pane could be displayed in one out of four following modes Large Icons Small Icons List and Details View panes could be shown or hidden selecting the appropriate command from the menu or pressing F11 for Dialog View or F12 for Monitor View pane Standard Select Language dialog allows the user to adjust the international environment according to his her needs Choose Show hide columns to adjust report view in the right pane of the configurator Checking appropriate columns within Sort can influence the order of data items in the right pane by submenu commands 8 1 5 Go menu
27. ationNo defined in the leaf database is created one item in the DATAITEMS table Also for each device are generated two data items for diagnostic purposes PortState and DeviceState EPCom The generator generates the address space of the EPCom server DEVICES and DATAITEMS For each device defined in the root database is created one item in the DEVICE table For each variable with valid process connection is created one item in the DATAITEMS table The data items are organised according to the type of the variables analogs digitals strings error messages operation messages recipes station bit fields diagnostic SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 71 of 79 OPC Clients Manual OPC Server 11 OPC Clients This chapter describes two simple OPC client programs e OPC Custom client e OPC DA Automation client The OPC Custom client can communicate with any OPC DA Server through the OPC custom interface The OPC DA Automation client uses the OPC DA Automation Wrapper OPC DA OPC Automation OPC Automation Interac gt Automation client Wranner OPC DA Server Exicom ProVicom OPC server OPC Custom client OPC Custom Interface DLL to access OPC servers Figure 38 The OPC Custom and automation clients 11 1 OPC Custom client This client application is a very simple client for testing of connection with any OPC server through OPC DA custom interface It is a
28. d configuration database sss sees eee 42 7 5 EPModbus OPC eener 43 7 5 1 ET 43 7 5 2 Address space bierarchy en 44 7 5 3 How the server WOKS gaT Zas T ae ra iea O AA E nn nnn nenn nnne nennen nennen 45 7 6 ER emm OPG SOVE ebe ee ee 46 7 6 1 PUSS ee ea ee ae 46 7 6 2 Address space hierarchy u sense ek 47 8 Exicom ProVicom OPC server configuratorS uueussennnnnnnnnnnnnnnn 48 8 1 Baa TTT 48 8 1 1 Views layout esse tee ee ie ie eis 48 8 1 2 File MENU ee ee ee ed 49 8 1 3 EdiE MENU see ee ee ee En ER In Er Eee Eee 50 8 1 4 VIEW ET EE 51 8 1 5 Go menu browsing the data E 51 8 1 6 Tools MoN ecer en e eE E A ENEE TNE EO 52 8 1 7 EH tege Eege 52 8 2 Configuration of the EPModbus address space 53 8 2 1 Ear a Stes ne an en a nee re rare 53 8 2 2 DEVIEOS rs a ee ee ae eek en ee 54 8 2 3 OOE 0 a ee E N ee ae ke 55 8 2 4 Paa to see ee ee ee ee Nee 55 8 2 5 Device Parameters 57 8 2 6 Ere UT created 58 8 2 7 Simulation e EE 59 8 3 Configuration of the EPCom address space nennen 60 8 3 1 DGT er ee sacs wea haved ENTE 60 8 3 2 BEIEN E EE 62 9 Exicom ProVicom OPC server administrators cccccseeeseeeseeeees 67 10 Configuration using SPSPlusWin uuuuuuu000000000000nnnnn nenn nenn 68 10 1 Step by step procedure sees 68 10 2 The hierarchy of the SPSPlusWin projects eee eee 70 Page 4 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Contents 10 2 1 The TOOL database nn
29. der click Browse and select another folder You can choose not to install Exicom ProVicom OPC Server 1 31 by clicking Cancel to exit Setup Destination Folder C Exicom ProVicom OPC Server Browse Figure 3 Choose destination location Page 14 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Installation E ackup Replaced Files Figure 4 Backup the replaced files It is recommended that you create backups when you want to be able to roll the system back to the previous state when you uninstall the OPC server S Start Installation Figure 5 Start installation SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 15 of 79 Installation Manual OPC Server Figure 6 Installing the OPC Server Bee Installation Complete Figure 7 Installation completed Page 16 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Installation 3 4 Deinstallation You can deinstall the Exicom ProVicom OPC Server with the uninstall program you find in the start menu Please press Start gt Program gt SAE STAHL Exicom ProVicom OPC Server gt Uninstall Select Uninstall Method Figure 1 Select the uninstall method It is recommended that you select the automatic uninstall to roll back the system correctly Perform Uninstall Figure 2 Perform uninstall SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 17 of 79 Installation Manual O
30. each device in the server address space The changed data item values which are not processed immediately by the client are queued in a buffer The size of the buffer is configurable The buffer works like FIFO queue First In First Out This buffer enables clients to receive every change of the data item value The definition of the buffer requires setting of the following parameters Hold Last If checked the last value of the data item is hold in the buffer If unchecked the last value of the data item is hold in the buffer but the value quality is changed to uncertain after the client reads it Buffer FIFO If unchecked the size of the buffer is default 1 If checked it is possible to specify the size of the buffer Overwrite If checked the oldest value placed in the buffer queue will be overwritten oldest when the queue is full Size The maximum number of values allowed in the buffer queue Life time The lifetime of values in the buffer not supported Notice that the value buffering works only if the data item is active Inactive items are not updated at all Page 66 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Exicom ProVicom OPC server administrators 9 Exicom ProVicom OPC server administrators There can be created more configuration databases for both EPCom and EPModbus OPC servers but only one can be active To view and to change the active configuration database
31. emented by one every time when the item is read Write Count increments when the item is written Random generates random value within the Amplitude range starting with Position Ramp Sine are periodical signals Their time behavior is influenced by Period and Phase parameters Period specifies the signal frequency while Phase moves the signal origin on the time axis Square are periodical signals Their time behavior is influenced by Period Triangle Phase and Ratio parameters Ratio defines Triangle signal steepness or Square signal H L proportions Step is a periodical signal Their time behavior is influenced by Period Phase and of steps parameters of steps parameter defines a number of steps the signal amplitude will be divided into 100 Ramp T L eo e ol e L e o Figure 27 The Simulation signals table SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 59 of 79 Exicom ProVicom OPC server configurators Manual OPC Server 8 3 Configuration of the EPCom address space The address space tree of the EPCom server consists of two levels Devices and Dataltems Device represents a branch and corresponds to one Exicom ProVicom device EPDevice Dataltem represents a leaf and corresponds to one EPDevice source e g variable defined in EPDevice It can correspond also to a group of EPDevice sources The address space should be defined according to the connected EPDevices and t
32. er Data Cache Physical Device DataBase C Application OPC Custom Interface Figure 7 The OPC Automation Wrapper DLL Page 36 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Introduction to OPC servers 6 1 4 OPC DataAccess Server All OPC DA Servers are comprised of several objects the server the group and the item The OPC server object maintains information about the server and serves as a container for OPC group objects It provides functions such as getting of the server status information and browsing of the servers address space The server address space is a set of all available data items of the server The OPC group object enables to group data items Also it enables data exchange between OPC server and OPC client The OPC client can periodically read and write data to the items in the group Also the OPC group object enables to create exception based connections between the client and the items in the group An OPC client can configure the rate that an OPC server should provide the data changes to the OPC client The OPC item objects represent connections to data sources within the server An OPC item from the custom interface perspective is not accessible as an object by an OPC client Therefore there is no external interface defined for an OPC item All access to OPC items is via an OPC group object that contains the OPC item or simply where the OPC item is defined
33. erver configurators 8 1 User interface User interface of the configurators is Microsoft Explorer like and it provides numerous functions to make the configuration easier such as Copy and Paste Drag and Drop or context based popup menus Views layout File menu Edit menu View menu Go menu Tools menu Popup menus These functions are the same for both EPModbus and EPCom configurators 8 1 1 Views layout Views layout is divided into four view panes e Tree view e List view e Dialog like view e OPC Data Access Monitor view Tree View List View Dialog View OPC DA Monitor View Figure 18 The views layout The tree view is used to explore the structure of the address space device parameters conversions and simulation signals The list view is used to display the contents of the item selected in the tree view The dialog like view is used to edit parameters of the item selected in the tree view The monitor view is used to monitor connection with the runtime module and to display current values of the items selected in the tree view This is useful for testing purposes Page 48 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Exicom ProVicom OPC server configurators 8 1 2 File menu File menu provides commands for creating New opening Open and saving Save As configuration as Microsoft Access Database file mdb These commands work in a
34. es represent the number of all records in database and the current database position PASPSPlus WIN MT300_OPCExample Page 2 Biel E3 Project Edit View Page Object Windows _Jel x ojala see a ee Ern SO almi 13 sjolal IR alale ele j LLL len ROR e n HC e le y Lhi LILLI alain lele ele e lx k os at TO Va Ue EEE ILI oe oe ee oe 1 1 LEEEEEI De NNN II EL 1 u ELDER LLL I Im ha a lele ewe lele le LIT ti CLEEE LIA LEE TTT LITT TT 493 358 MT 300 7 Figure 3 The Product List page If the ProductList page is active then the user should use following function keys to view and to edit the table Key _ Function F1 Display previous 8 records F3 Display next 8 records F5 Save changed records to the table The number of the active page is stored in the Page variable The keyboard status is stored in the Keyb_SPC_O variable Page 30 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Configuration procedure example application 5 3 EPModbus configuration database The configuration database of the EPModbus OPC server is stored in the EPModbus_MT300_OPCExample database It contains corresponding data item for every variable defined for the MT300 application Ben FF Pona FI Station_1 A Count A FA
35. etting of the properties you can change the source name and specify when the source should be updated 8 3 2 0 3 Source properties It is possible to change the Source ID of each source from the source list and to specify the Update source property Sometimes it is not necessary to update sources permanently but only when a specific condition is true a certain key is pressed a certain page is activated This behavior is specified by the Update source property This property can be set to one of the following values e f trigger condition is true e f page condition is true e Always Source properties ona Station_1 ProductlD Figure 30 The source properties If the Update source property is set to f the trigger condition is TRUE then the source is updated only if the trigger condition is true For example a source can be updated only when the user of the EPDevice presses a certain key SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 63 of 79 Exicom ProVicom OPC server configurators Manual OPC Server If the Update source property is set to While the page condition is TRUE then the source is updated periodically while the page condition is true Ifthe page condition is false then the source is not updated This can be used for the sources that can be changed only when a certain page is active For example sources in the EPDevices are mostly represented by input and output variables and are organized and displayed o
36. figuration modules EPModbus configurator and EPCom configurator that can be used to create and to modify the configuration databases For both EPModbus and EPCom OPC servers can be created more then one configuration databases But only one of them can be active To select the active configuration database from existing databases can be used EPModbus administrator and EPCom administrator Page 42 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Exicom ProVicom OPC Server 7 5 EPModbus OPC server 7 5 1 Features EPModbus OPC server implements modbus communication protocol Basic features of the server are following e support of both RTU and ASCII modbus modes s 4 serial channels s 247 devices per channel e data transfer optimizations e simulation e automatic conversions from device scale to engineering units SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 43 of 79 Exicom ProVicom OPC Server Manual OPC Server 7 5 2 Address space hierarchy The address space tree of the EPModbus OPC server has following hierarchy Data Items E Space e Pora 2 12 Modicon g MT_120 fi MyDevice EJ Nationallnstruments CC Analoginputs A Al_40001 A Al_40002 A Al_40003 A Al_40004 A Al_40005 73 Al_40006 A Al_40007 A Al_40008 E AnalogOutputs E Digitallnputs 9 DigitalOutputs EI NewDevice o El Simulated e PortB ai ef Fonc
37. fy two conditions e Trigger condition e Page condition The page condition is defined by a page source and a page value If the value of the page source is equal to the defined value then the page condition is true Otherwise it is false The trigger condition is defined by a trigger source and a trigger value If the value of the trigger source is changed to the defined value then the trigger condition is true Otherwise it is false Notice that the trigger condition is true only when the trigger source is changed After the value of the condition is used then it is automatically reset to FALSE The page and trigger sources should be selected from the address space of the communication driver It is not necessary to define both conditions In some cases the conditions are not necessary Conditions Page source P gt PorA Station_1 Page fe Page condition The page source is equalto fi Trigger source S Trigger condition The tigger source is changed ta C TRUE FALSE T Bathlevels Figure 31 The conditions For example a variable ProductID is defined in the EPDevice This ProductID is connected to an input box object placed on a page number 2 This variable can be changed only when the user selects page 2 and types new number in the input box If we want to update this source only when the page 2 is selected then we need to define a page condition As a page source should be selected the source which was des
38. gnificant bit becomes the most significant bit SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 57 of 79 Exicom ProVicom OPC server configurators Manual OPC Server 8 2 6 Conversions Using Conversions directory you can define your own conversions for converting of device data values from instrument range units IR to engineering units EU To define a new conversion form you have to specify following properties Type of conversion No conversion converts the data into float data type but does not change the value itself Linear or square root conversions keep a linear or square root relation between EU and IR Conversion Note that definition of range limits helps some client parameters applications e g when creating slider and makes sense even when no conversion is specified Clamping If clamping is on the data value will be limited to its High clamp EU value when it exceeds the upper limit and similarly with Low clamp parameter 10000 Figure 26 The Conversions table Page 58 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Exicom ProVicom OPC server configurators 8 2 7 Simulation Signals Using simulation signals directory you can define your own simulation signals The new signal can be created from predefined set of signals by changing of some of their parameters The predefined types of simulation signals are following Read count is incr
39. he source If a value should be prepared from more sources then only following two data types are available VT_BSTR The values of the sources are converted to a string and linked to one string The strings can be delimited with a defined character VT_ARRAY The values of the sources are placed in an array of variants VT_VARIANT An alternating flag can be appended to each value Its value will alternate from 1 to 0 whenever a new value is created and inserted to the buffer The value of this flag is always placed at the end of the data item value If the data item groups more sources then the value written by the client should contain values for each of the defined sources in the specified string or variant array format Otherwise the write operation will fail Page 64 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Exicom ProVicom OPC server configurators 8 3 2 0 5 Conditions The conditions are used to control when the value sources should be updated and when a new value of the data item should be created from the updated sources and put into the buffer Properly defined conditions can minimize the transfer on the communication line between the server and the EPDevice It is possible to use no conditions and update sources of all data items permanently But in this case maybe it would be better to use only the communication driver e g EPModbus For each data item it is possible to speci
40. heir application purposes 8 3 1 Device Setting up Device requires to configure following parameters e Driver ID Update rate Deadband Status item ID Update status period SAESTAHLGmbh EPModbusDA PortA Station_1 IntStatus E Figure 28 The Device configuration table 8 3 1 0 1 Driver ID Driver ID defines a communication driver that will be used to read data from and write data to EPDevice sources The communication driver can be any OPC DA server 2 0 This driver should be selected according to the communication protocol of the corresponding EPDevice The protocol of the EPDevice is specified during a design of the EPDevice application It is recommended to use EPModbus OPC Server for the modbus communication protocol 8 3 1 0 2 Update rate This parameter defines the requested rate of updating of the EPDevice sources Page 60 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Exicom ProVicom OPC server configurators 8 3 1 0 3 Deadband EPCom server is connected to the communication driver using subscription callbacks The communication driver automatically updates selected sources in its internal cache The parameter Deadband informs the driver about the percent change in a source value that will cause a subscription callback for that value to the EPCom server This parameter only applies for Analog sources If deadband is 0 0 then all changes are sent to the EPCom server 8 3 1
41. igned in the EPDevice to store the current page number The page number in the page condition should be set to 2 Finally the update source property of the ProductID source in the source list should be set to While page condition is TRUE SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 65 of 79 Exicom ProVicom OPC server configurators Manual OPC Server After the value sources are updated the same conditions are used to determine whether a new data item value should be created from the sources and put to the buffer or not The rules are following Rule 1 If no trigger condition is defined then a new data item value is created and put into the buffer only if at least one of the updated sources was changed If a trigger condition is defined than the new value is prepared and put into the buffer only if this condition is true Rule 2 If the page condition is defined then a new value is created and put to the buffer only if this condition is true For example it may happen that a page condition is false and a trigger condition is true at the same time In this case no value is created It can be created only if both conditions are true 8 3 2 0 6 Value buffer A client program can specify the highest rate at which it is able to receive data from the EPCom server But data item value can be changed faster It usually corresponds to the update rate of the data item sources This is specified by the Update rate parameter that is defined for
42. intprotocol templates f Picture objects Variables ES Process connection si Lal Port Lal System E Opc_MT 45 Pagett 0 Variables Deutsch BIS B Figure 1 The page variables Page 20 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Getting started BR Opc_MT 45 EI F Programme SPSPluswIN_2 projec fe Messages Ack SPC mil Pages Fault_SPC_O Templates Keyb_SPC_O G Modbus Slave Driver il Help pages LedBit_SPC_O 4 20 16 Bits Modbus Slave Driver ai Help templat MsgReg_SPC_0 4 40 16 Bits Modbus Slave Driver ame Help templates PY_IntVarSend 4 100 16 Bit Modbus Slave Driver i amp Printprotocols PV Stingy arz send 4103 10 Chars Modbus Slave Driver E Printprotocol templates PY_UINTVarSend 4 101 16 Bit Modbus Slave Driver Picture objects Variables H System Figure 2 The process connections of the variables SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 21 of 79 Getting started Manual OPC Server BF Opc_MT 45 SGT H F Programme SPSPluswiN_2 projec Name T Group Station number Line number Net knot Data master Comment E Messages SPC_O 1 0 0 1 wi Pages Templates Help pages LED Bit field Message register Keyboard field ka Help templates Base Fault message field Acknowledge field Z Printprotocols f Z Printprotocol templal Station name Process connectio
43. ion address and name of the project database This database is valid only if it defines driver MODBUS_SLAVE with parameter StationNo equal to the requested Station address defined for the device in the root database For this driver should be defined only one station with the parameter Station address equal to the StationNo parameter of the driver OPC_MODBUS defined in the root database see Figure 37 Page 70 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Configuration using SPSPlusWin Root database Leaf database 1 OPC_MOD_MASTER MOD_SLAVE StationNo StationNo Station Name 1 Station Name X Station address Station address X 1 Process connection 1 Station Name n Station address Process connection N n Figure 37 The connection between root and leaf databases 10 2 3 The generated configuration databases SPSPlusWin generates two configuration databases One for EPModbus OPC server One for EPCom OPC server The generator explores the root and leaf databases and creates both configuration databases accordingly EPModbus The generator generates the address space of the EPModbus server PORTS DEVICES and DATAITEMS For each communication channel defined in the root database is created one item in the PORTS table For each device connected to the port and defined in the root database is created one item in the DEVICEs table For each valid process connection MODBUS_SLAVE driver with the proper St
44. ive database is actually set the program asks you to confirm the setting The dialog box that is invoked looks like this ModbusOPCConfigurator o Current active database is K D OPC ToolWorX v2 2 ModbusOPC4Data ModbusOPC_Small mdb Active database is the database that the server will load when started Currently edited database is D OPC ToolwWorx 2 2 ModbusOPC D ata ModbusOPC mdb Do you want to set edited database as active database Figure 19 You can now verify the database file names and decide to proceed or cancel the operation SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 49 of 79 Exicom ProVicom OPC server configurators Manual OPC Server 8 1 3 Edit menu The Edit menu contains many standard commands such as Rename Delete Cut Copy Paste Select All and Invert Selection The configurator supports standard drag and drop behavior in the list and tree views Other edit menu items are following e New submenu e Multiply command 8 1 3 0 1 New submenu This submenu contains commands to add new objects into an active branch in the tree The actual content of this submenu is based on the type of the branch you have selected 8 1 3 0 2 Multiply command Multiply command within Edit menu belongs to the set of non standard commands Its purpose is straightforward Selecting this command will launch Multiply Item Dialog The actual look and contents of the dialog is server dependent The simplest ex
45. l OPC Server 8 2 4 0 1 Modbus type The location type device data will be understood as Modbus type OPC data type Modbus data type also depends on the Location type selected Example Coil or Input 1 bit device data type could be Modbus BOOL only When selecting Modbus String type user has to specify the data length how many bytes will the String be represented by 8 2 4 0 2 Starting address This value specifies the data item address register number in the device data space With the UINT Modbus type it is possible to extract bits from the register and use them as a Boolean or integer value The user can specify a group of Count adjacent bits inside a word starting with Bit This way it is possible to use a register for several separate data items Addresses 65533 65534 and 65535 of the device data space are reserved for OPC server OPC server uses registers 65533 and 65534 to store diagnostic information e Register 65533 stores the current state of the device 0 Device is OK 1 Device is suspended e Register 65534 stores the current state of the port 0 Port is OK 1 Port is not available 8 2 4 0 3 Use conversion To get the data value converted according to a form prescribed choose one of the predefined or user defined conversions 8 2 4 0 4 Simulation To test the client functionality choose a Simulation Signal from the Signal drop down and check Simulate check box All levels in the Address sp
46. laced in the MT300_OPCExample archive file in the SPSPlusWin Projects directory The application has three pages e Start page e ProductID page e ProductList page The page Start 0 is displayed after the start of the application It is used to select one of the following two pages either the page ProductID 1 or the page ProductList 2 Page 0 LI S2CProduct ID Herren Figure 1 The Start page There is on the ProductID page one input box to enter the ProductlD variable and two output boxes to display the corresponding Name and Quantity variables Figure 2 The Product ID page SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 29 of 79 Configuration procedure example application Manual OPC Server If the ProductID page is active and the user types a new ProductlD to the input box then the corresponding Name and Quantity should be displayed There are on the ProductList page 8 output boxes to enter ProductID_0x variables x is a number from 1 to 8 8 input output boxes to enter display Name xv variables and 8 input output boxes to enter display Quantity_Ox variables Also there are two output boxes to display the Count and Position variables These variabl
47. led by the server It uses MODBUS communication protocol The server is working as master and devices behave as slaves The address space of the server the device network structure parameters and the available data items is fully configurable SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 39 of 79 Exicom ProVicom OPC Server 7 2 Implemented OPC interfaces The Exicom ProVicom OPC Server implements following interfaces Manual OPC Server Server object Interface Version 1 0 2 0 Supported OPC Server lOPCServer 1 0 2 0 Yes IOPCServerPublicGroups 1 0 optional 2 0 No optional IOPCBrowseServerAddress 1 0 optional 2 0 Yes Space optional IOPCItemProperties 2 0 Yes IConnectionPointContainer 2 0 Yes IOPCCommon 2 0 Yes IPersistFile 1 0 optional 2 0 Yes optional OPC Group IOPCGroupStateMogt 1 0 2 0 Yes IOPCPublicGroupStateMgt 1 0 optional 2 0 No optional lIOPCASynclO2 2 0 Yes IOPCAsynclO 1 0 Yes IOPClItemMgt 1 0 2 0 Yes IConnectionPointContainer 2 0 Yes lOPCSynclO 1 0 2 0 Yes IDataObject 1 0 Yes Page 40 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Exicom ProVicom OPC Server 7 3 Exicom ProVicom OPC server architecture OPC Client OPC Client X Y Ee SE RE Ex i CO m P ro V ico m EPCom La Application OPC Server EPModbus i Modbus driver OPC Server EEE er HW Serial channels HW Serial channels Figure 1
48. ler s property pursuant to 454 BGB German Civil Code until all claims from business transactions whether current or future have been satisfied in full Ownership as above exists even if any claim should be made part of a current invoice and a balance is struck and accepted 2 Buyer hereby assigns any claim from the resale or otherwise of the goods title to which is retained including but not limited to any balance due under current account and any other rights to Seller as surety In the event of Seller passing on the program package within the meaning of 84 Seller is obliged to agree retention of title with the subsequent user or users Title in the goods shall be deemed to be retained in favor of Seller until full payment of the related claim is made 3 Buyer is irrevocably entitled at any time and in his name to collect any claim assigned to Seller as above the amount of such claim to be credited to Seller s account Orderer is obliged to inform Seller on the latter s request of the amount of his claim the reason why it exists and the name of the third debtor 4 No claim may be pawned or pledged as security If Buyer s business should be seized by way of execution or bankruptcy proceedings opened or he should compound with his debtors Buyer is obliged to refer to the existence of Seller s retained title and inform Seller accordingly without delay 5 On Buyer s request Seller undertakes to release any security furnished to him
49. lication of the Exicom ProVicom device Supports the link of devices to serial interfaces RS 232 RS 422 Support of COM 1 4 Data exchange via Modbus RTU Bus Adressing up to 31 stations dependent on the volume of data Handling block for MS Windows Applicable for soft PLC and simple connections 1 2 2 What is EP COM EPCom OPC server controls the underlying EPModbus OPC server according to the user defined conditions For example it enables to transfer data only from variables defined on the current page of the device or only if a key was pressed It also enables to create records of more variables e Uses the EP Modbus e Reduces data exchange by event control Page query after depressing the key formulas Page refresh after modifications Creation of data structures e takesover datenmanagement functions e application for data base controlledsystems ACCESS Excel Oracle The EP COM software package includes EP Modbus SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 7 of 79 Before You start 2 Before You start 2 1 Delivery The delivery contents e Program CD e This manual Page 8 of 79 Manual OPC Server SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Before You start 2 2 Software license agreement Between SAE STAHL GMBH Im Gewerbegebiet Pesch 14 D 50767 K ln herein referred to as Seller and herein referred to as Buyer the following contract is made 1 Object of c
50. minology It describes the general structure of an OPC Data Access server Chapter 7 describes the architecture of the Exicom ProVicom OPC server It describes the features functions and the hierarchy of the address space of the server Chapter 8 provides detailed information about configurators the programs for configuring of the server The detailed description of the address space of the EPCom OPC server and of the EPModbus OPC server is provided in this chapter Chapter 9 describes the administrators the programs for administration of the configuration databases of the Exicom ProVicom OPC server Chapter 10 how to generate the configuration databases of the EPModbus and EPCom OPC servers in the environment of the SPSPlusWin engineering tool Chapter 11 describes two OPC client programs One of the clients uses the custom OPC interface and it was written in C language The second client uses the OPC Automation Wrapper and was written in Visual Basic for Applications language VBA Page 6 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Introduction 1 2 Product introduction The Exicom ProVicom OPC servers EP Modbus and EP COM are out process OPC DataAccess servers They enable OPC clients to communicate with SAE STAHL Exicom ProVicom operator terminals 1 2 1 What is EP Modbus EPModbus OPC server implements MODBUS communication protocol This server enables to access each variable defined in the app
51. n E Picture objects erco l Ge en i S 4 25 16 Bits SE en Group nowledge field EB Digital zl Tous 32 Bits Analog LED Bit field String EE Re 2201 Bits essage register fr S1 4 40 16 Bits Keyboard field Station parameters MT 45 7 COM 1 7 Modbus Slave Driver IE Process connection J Port egen 2 J Terminal is datamaster S1 4 1 64 Bits EI odule Sa System Comment T Swap strings m Mode of station Modicon Generic C ABB Abbrechen bernehmen Hilfe Figure 3 The station parameters In the sheet station parameters are the terminal functions defined You find more information about it in the protocol driver manual for Modbus in the chapter Function description of PLC Mode Please download this project in the terminal with the command Project Transfer 4 3 The EP Modbus configuration database The EP Modbus Configurator can be opened with the start menu Please press Start gt Program gt SAE STAHL Exicom ProVicom OPC Server gt EPModbus Configurator Open the example database EPModbusMT45 mdb and set it as active database with the commands File gt Open and File gt Make Active On the left side of the configurator is a tree view with the address space of the OPC Server In this address space you can define the ports the devices and the data items Page 22 of 79 SAE STAHL GMBH OPC GB DOC 24 01 01 Manual OPC Server Getting started A E parenn G
52. n MFC single document interface application Gi SAESTAHLGmbh EPComDA OPC Test Client ca File OPC View Help Exicom ProVi me erae Station_1 ProductlD Station _1 ProductD_Quantity Station_1 System_Keyb Station_1 System_Page Figure 39 The OPC Test Client Page 72 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server OPC Clients 11 1 1 How to connect to a server Select Connect command from the OPC menu or press the Connect button on the toolbar Choose one server from the list of available local OPC servers and press OK button Select OPC Server ICONICS DataWorx ICONICS ModbusOPCServer3 ICONICS ModbusOPCServer3 1 ICONICS Simulator ICONICSInc IniFileOPCServerDA ICONICSInc IniFileOPCServerDA 2 SAESTAHLGmbh EPComDA SAESTAHLGmbh EPComDA 2 SAESTAHLGmbh EPModbusDA Figure 40 The list of local servers To disconnect from the server select Disconnect command from the OPC menu or press the Disconnect button on the toolbar 11 1 2 How to display server status information Select Server status command from the OPC menu or press the Status button on the toolbar SAE STAHL GMBH EPComDA Figure 41 The server status information SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 73 of 79 OPC Clients Manual OPC Server 11 1 3 How to change group parameters After the server is connected the client program will automatically create one private group in the server It is
53. n more pages But the user can edit change only those input variables which are displayed on the current page Other input variables can t be changed and it is not necessary to update them The Update source property of the sources that can be changed anytime should be set to Always An example of such source is a keyboard field which represents the current state of the EPDevice keyboard Similarly the sources that are specified in the EPDevice application to be updated permanently see SPSPlus Win documentation should have the Update source property set to Always The update period of always updated sources is defined for each device by the update rate parameter The Update source property is indicated with lt NT gt lt NP gt or lt NA gt at the beginning of the SourcelD in the source list 8 3 2 0 4 Value format Definition of the value format of the data item requires setting of the following properties Data type The canonical data type of the data item Append alternating flag If checked an alternating flag is appended to the value Value delimiter This character delimits values of different sources only for VT_BSTR Precision The precision of float values only for VT_BSTR The allowed data type of the value depends on the number of sources in the source list If there is only one source then the data type can be one of available variant types Usually it should correspond to the data type of t
54. on callbacks received from the EPCom OPC server If it receives the value of the Station_1 ProductlD item then it searches for corresponding record in the table and writes the name and quantity to the item Station_1 ProductID_NameQuantity If it receives the Station_1 ProductList_F1 or Station_1 ProductList_F3 and the values of these items are TRUE then it prepares a set of table records and writes it to the item Station_1 ProductList_All If it receives the Station_1 ProductList_F5 and the value is TRUE then it reads the current value of the Station_1 ProductList_Alland makes corresponding changes in the table Page 34 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Introduction to OPC servers 6 Introduction to OPC servers 6 1 OLE for Process Control OPC 6 1 1 OPC Fundamentals OLE for process control OPC is a standard mechanism for communicating to numerous data sources It is an open and effective communication architecture concentrating on data access OPC is based on Microsofts OLE COM DCOM technology for data exchange between applications The OPC was designed by OPC Foundation organization The architecture of OPC is a client server model OPC servers and OPC clients may be provided by different vendors vendor independence More than one OPC clients can be connected to one OPC server at the same time multi client access An OPC Client can connect to OPC servers running on different nodes of the
55. ontract 1 Seller sells to Buyer the EDP program package described in this Manual together with the Manual 2 The program is stored on machine readable medium 3 The program and the User s Manual are copyrighted pursuant to copyright act of 25 06 198 2 Conclusion of contract Buyer accepts the offer submitted by Seller in this contract form 3 Use The right to use the program package is granted for one data processing device in each case Buyer may select the device on which he wants to use the program package Buyer is entitled to save the program repeatedly in the device in which he intends to use it from time to time or permanently for the purpose of executing the program and make copies of the program as may be required for its use This right also includes the right to duplicate the program for use at the same time by several data processing devices within one facility Duplication of the manual is not allowed except with the written permission of the copyright holder 4 Passing on of the program package and creation of new user rights 1 Buyer may pass on the program package in its original form for use by an after user This right does not exist for passing on of any modified or edited versions or copies of that version including partial copies 2 Buyer may agree to grant the after user own user right That right shall be of the same nature and scope as the Buyer s continuing right pursuant to 3 5 Passing on by
56. possible to change some of the group parameters To change these parameters select Group parameters command from the OPC menu Group Parameters one Update Rate fo mSec A Active Vv Deadband fo FS Apply Time Bias Feo LOD fo Figure 42 The group parameters The meaning of the group parameters is following e Update rate represents the period of updating of the items in the server e The group can be active or inactive If it is Inactive the items in the group are not updated at all e Deadband server sends notify messages only when a value of an item is changed more than specified deadband This parameter is in percent of the full scale FS of the item source e Using TimeBias the time base of the server time can be shifted in minutes e LCID is a localization ID of error strings Page 74 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server OPC Clients 11 1 4 How to add a new item to the server group Select Add item command from the OPC menu or press the Add item button on the toolbar Select required Data Type of the items that should be displayed Use the left pane to browse in the server address space Select required item from the right pane and press OK button ProductlID_Name H ProductD_NameQuantity ProductID_Quantity ProductList_All ProductList_F1 ProductList_F3 ProductList_F5 System_Keyb Figure 43 The dialog for browsing of the address space 11 1 5 Ho
57. pter describes the step by step procedure of configuring of the Exicom ProVicom OPC server using configurators This procedure is illustrated on a simple example The configuration procedure has usually 4 steps They are following 1 Application specification specify what the device should do and what the client program should do 2 Create an application for Exicom ProVicom devices using SPSPlus Win toolkit definition of pages controls functions variables and process connections 3 Create a configuration database for EPModbus OPC Server using EPModbus configuration module For each process connection of the Exicom ProVicom device define corresponding data item in the server address space 4 Create a configuration database for EPCom OPC Server using EPCom configuration module This can be made according to the application purposes In a very simple application there is created one data item for each data item of the EPModbus with defined Page and Trigger conditions 5 1 Application specification MT300 device is used to access a simple MSExcel table using EPCom OPC server One record of the table has following fields Record field ProductID STRING MT300 device is used to view and edit records of the database table Page 28 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Configuration procedure example application 5 2 MT300 application project The application project for MT300 device is p
58. quirements een eh 12 3 3 HOW TO Stall a er ae N Be nt 12 3 4 Deinstallalion u ee unse eg 17 4 Getting started ssssssssssssssssssasssssssssrssssssassssassssssssssasssssasssssasssassssassssss 19 4 1 Example Ort CD E 19 4 2 Th amp SPSplusWIN Projekt seen een en ie na 20 4 3 The EP Modbus configuration database sese 22 4 4 The OPC DA Custom Gent ege Nee 26 5 Configuration procedure example application 1see 28 5 1 Application specification EE 28 5 2 MT S00 application project rer BR 29 5 3 EPModbuls configuration database u nenn Heer 31 5 4 EPCom configuration database sse eee eee 32 5 4 1 DEVICE teo nee eier le 32 5 4 2 Data GMS a see 32 5 5 TNEOPSSC HEN EE 34 6 Introduction to OPC serverS nnuuuneunnnnnnnnnnnnnnnannnnnnnnnnnnnnnnnnnnnnnnnnnn 35 6 1 OLE for Process Control LEE de eege Ee E 35 6 1 1 OPG ie Ee E arte users ee ee 35 6 1 2 CIS GET fos hike ee a ee re 35 SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 3 of 79 Contents Manual OPC Server 6 1 3 OPC Server Intertaces nennen nnnennnennnennnennnenn 36 6 1 4 OPC DataAccess Server aenesnesoeenenorroriorrerrorrerirrrrrirrrrrrrrerrorrr rtrt rreren rre nne 37 6 2 PTT E a ee EE a ee 38 7 Exicom ProVicom OPC Server zu0 200 0002000a00n ann ann nun nun nnn mann 39 7 1 Exicom ProVicom OPC eener 39 7 2 Implemented OPC interfaces ur eenn 40 7 3 Exicom ProVicom OPC server architecture 41 7 4 Address space an
59. rver also can read registers that are not really requested if this allows it to join two blocks of requested registers The numbers entered under Optimizations specify the maximum block length of adjacent unused data Page 54 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Exicom ProVicom OPC server configurators 8 2 3 Folders Folder is an object that can group items that logically belong together It does not have any direct representation in the Modbus protocol you can design and use folders any way that is suitable to your application Three levels of folders are supported in the EPModbus OPC Server 8 2 4 Data Items Data Item represents a register in the device or a range of registers A symbolic name and description is associated with the data item OPC Client can obtain the data item description New data item creation requires configuration of the following properties e Location type Modbus type Starting address Use conversion Simulation Manual Figure 24 The Data Items configuration table Location type Location type is a type of a register in the device Device registers are divided into Coils Inputs Input Registers and Holding Registers This table explains the name conventions used er Read Besa Oniy Read Write input Co Ga Input Holding Register Register SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 55 of 79 Exicom ProVicom OPC server configurators Manua
60. s a database placed on a connected PC When user types a ProductID number in the device the Exicom ProVicom OPC server should notify a client program The client program should read data from the database according to the ProductID and send them to the device A table of products represents the database Each record consists of a Product ID Name and Quantity fields All client actions are implemented in a simple VBA script distributed with this workbook This client is implemented in the sheet ProductList of the OPCExampleClient workbook There are two possibilities how to access data from the database in this device application e Using Product ID page e Using ProductList page ProductID page Type one of the product identification numbers in the Product ID input box After the enter key is pressed then a corresponding name and quantity should be displayed ProductList page Use F1 and F3 to display previous or next table records Use arrows to go through input boxes in the table Use F5 button to save the changed records PCExampleClient Product1 Product Product3 2 Product4 Product5 Products Product 6 Product8 Product9 Product10 Product11 Product12 Product13 Product14 93 Product15 4 Product16 E Figure 48 Product List sheet SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 79 of 79
61. standard way The Exit command will close the configurator Other file menu commands are following e Windows CE Export command e Export CSV submenu e Import CSV submenu e Make Active command 8 1 2 0 1 Windows CE Export command This command exports the whole configuration into a single text file Then this file can be transferred to a Windows CE device and used by the server runtime running there This additional export step is necessary as Windows CE do not support mdb or other database formats 8 1 2 0 2 Export CSV submenu Commands in this submenu allow to export different parts of the configuration into a standard CSV comma separated variables file 8 1 2 0 3 Import CSV submenu Commands in this submenu allow to import different parts of the configuration from a standard CSV comma separated variable file 8 1 2 0 4 Make Active command The active database is the database that the runtime part of the server will use when started The active database may but does not have to be the same as the database currently edited in the configurator You can work on any database inside the configurator while the runtime part has its own active database The Make Active command sets the currently edited database as the active database Next time the server runtime part starts it will use this active database for all its operations This menu item is disabled when the currently edited database IS already active Before the act
62. tems that any OPC client program can access The address space of the Exicom ProVicom OPC server can differ according to the application of the connected Exicom ProVicom devices Also it can differ according to the number of devices the number of used communication channels and so on The address space is defined in a configuration database This database is loaded at the startup of the server Both servers EPCom and EPModbus have their own configuration database Configuration Configuration DB DB EPModbus Address Address space space EPCom OPC server EPModbus OPC server Figure 12 The address space and configuration database The applications of Exicom ProVicom devices can be created using SPSPlus Win Also SPSPlus Win can generate from application projects the configuration databases of the OPC Server oer EPCom and EPModbu configuration database Figure 13 The generating of the configuration databases Each application project defines a set of visualization objects pages input output boxes lists and buttons and corresponding process connections memory type memory address data type and length in bytes Information from the application projects is used to create configuration database for the OPC server The OPC server with the generated configuration database is able to communicate with the corresponding Exicom ProVicom devices The configuration databases can also be created manually There are con
63. the CD is inserted in the drive When the autostart function is disabled you can start it manually by calling the program START EXE In the menu INSTALL you can select the module you want to install Select the module Exicom ProVicom OPC Server to install the OPC Server You can also install the Microsoft Data Access Components you need for working with the configuration databases When you have installed Microsoft Access the Data Access Components are installed before Page 12 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Installation Figure 1 The start menu with the modules to install SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 13 of 79 Installation Manual OPC Server A Eseom Pievicom OPC Saive 1 31 Installation Wied comes to Ea om Pio icom OPC Server 1 31 Pz Sun pogan TRS get Eroon Provicom 1 7 on your computer Ihe ay normani Far pou wk all Widows procure Den tania Setup Progam Dd Cancal to gA Saup and ciae ay wre pu hava prom Cock Neat to cortine wth the Setup program WARNING The am paar CWT Lan and phen fog emeng Urna ala d reptoductor Tet udion of thee Gegner 0 u Portion of L may 65 p severe ou and criminal penabes EE Lies Ges Figure 2 The install program for Exicom ProVicom OPC Server Choose Destination Location Setup will install Exicom ProYicom OPC Server 1 31 in the following folder To install into a different fol
64. to the extent to which the value of such security exceeds the value of the secured claim by more than 20 11 General provisions 1 The place of performance of all obligations under this contract is Cologne Germany 2 The jurisdiction for all differences arising out of this contract shall also be Cologne Germany 3 All amendments and modifications of this contract in order to be effective shall be made in writing and shall make express reference to this contract and require the signature of both parties 4 If any of the provisions in this contract shall be or become ineffective this shall not affect the other provisions The parties hereto will replace an ineffective provision by an effective provision as closely as possible resembling the economic intent of the replaced provision SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 11 of 79 Installation Manual OPC Server 3 Installation 3 1 The OPC server packages content The software package includes EP Modbus Server EP COM Server EP Modbus Configurator EP Modbus Administrator EP COM Configurator EP COM Administrator OPC DA Automation Client OPC DA Custom Client Readme file Uninstall program 3 2 System requirements e Microsoft Windows NT 4 0 or Windows 95 with DCOM installed or Windows 98 s 64 MB RAM e 30 MB free space on hard disk We recommend that you use Windows NT 4 0 with 128 MB RAM 3 3 How to install The start menu is automatically launched when
65. unchecked then the server ignores the parity bits in the message Figure 22 The ports configuration table SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 53 of 79 Exicom ProVicom OPC server configurators Manual OPC Server 8 2 2 Devices Every device is connected to particular port It logically creates second level in the address space tree The device is represented by its symbolic name Also it is uniquely identified by the address It is impossible to have two devices with the same address connected to one port Setting up Device requires to configure e unique address e device type e timeouts e optimization parameters Figure 23 The Devices configuration table There is a group of six predefined Modicon device types enhanced with EPDevice and Custom options EPDevice is a short name for Exicom ProVicom SAE STAHL device type If you have devices that are not among the list of pre defined types use Custom option and select from Parameters combo one of the user defined device types For instruction on how to create new or edit user defined device see also device parameters Timeout parameters separately for read and written messages specify the period length that server waits for response from devices The server tries to optimize the communication with the devices by requesting as much data as possible in one message Consecutive registers are merged together into one request for efficiency The se
66. us_MTxxx_OPCExample configuration database This should be stored in the directory SAE STAHL Exicom ProvicomOPCServer EPModbus Data 3 Use EPCom Administrator to activate EPCom_MTxxx_OPCExample configuration database This should be stored in the directory SAE STAHL Exicom Provicom OPC Server EPCom Data 4 Select the OPC DA Automation Client from the start menu This operation should start MS Excel and open the OPCExample workbook Page 76 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server OPC Clients 11 2 2 Sheet1 List of OPC DA servers After this sheet is activated it will display a list of all OPC servers available on this computer A B ser 1 CH 2 List of OPC Data access servers avalaible on this computer 3 DSSI OPCTLSampServer 1 4 ICONICSInc IniFileOPCServerDA 2 5 ICONICS Ince IniFileOPCServerDA 6 SAESTAHLGmbh MyIniFileOPCServerDA 2 7 SAESTAHLGmbh My IniFileoPCServerDA 8 SAESTAHLGmbh EPServerDA 2 9 SAESTAHLGmbh EPServerDA 5 10 SAESTAHLGMBbh TestDA 2 11 SAESTAHLGMbh TestDA 12 ICONICS Simulator 13 ICONICS DataVVorx32 14 ICONICS ModbusOPCServer3 1 15 ICONICS ModbusOPCServer3 16 SAESTAHLGmbh EPModbusDA 2 17 SAESTAHLGmbh EPModbusDA 4 41 IM List of OPC DA Servers Server Status Server Items Product Ust Figure 45 List of OPC DA Servers sheet Notice that some of the servers have two different ProgIDs programmatic identifiers For example S
67. w to write a value to the item Click select the required item in the displayed list Select Write value to item command from the OPC menu or press the Write item button on the toolbar Type a new value and press the OK button Figure 44 The dialog for writing a new value to an item SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 75 of 79 OPC Clients Manual OPC Server 11 2 OPC DA Automation client This client application is a simple client for testing a connection with any OPC server using OPC DA Automation wrapper DLL It also demonstrates on a simple example how to use the Exicom ProVicom OPC server in VBA application To run this client you will need e Exicom ProVicom device MT ET_xxx connected to your PC e MS Excel 97 e SPSPlus Win v X X X The OPC automation client is created in MS Excel and is implemented in the workbook OPCExampleClient This workbook contains following sheets e List of OPC DA servers e Server status e Server items e Product list The first three sheets can be used to test the connection with any OPC server The last sheet demonstrates the use of the Exicom ProVicom OPC server 11 2 1 How to run the OPCExampleClient Follow these steps 1 Use SPSPlus Win to download the MTxxx_OPCExample application to the target device MTxxx This application should be stored in the MTxxx_OPCExample zip archive in the SPSPlusWin Projects directory 2 Use EPModbus Administrator to activate EPModb
68. zl Device Parea SHEJ Simion Sipes Figure 1 The EP Modbus Configurator with the port parameters In the branch Port you define the parameters of the communication port of the OPC Server The parameters must be equal with the communication parameters of the terminal SAE STAHL GMBH OPC_GB DOC 24 01 01 Page 23 of 79 Getting started Manual OPC Server E itn dind IA mdd EPModbusl and Sad NN NN N B Hakre rsced 1A Hoking rele lnd 14w Hr amie Imod 1 Holding recites Il 1w Hoking regeter ld Mal Holding regeder lesed Av Holding roter lad Mal Holding re ie ord vie Holding regates word Av Holding re ie lnd 1w Holing register lal nw Pe 9 20 Converons G zl Device Parea BHE mieken Signs Figure 2 The EP Modbus Configurator with the device parameters In the branch Device you define the parameters of the terminal on this communication line The address must be equal with the station number of the terminal When you close the database changes are saved automatically Page 24 of 79 SAE STAHL GMBH OPC_GB DOC 24 01 01 Manual OPC Server Getting started 31 20 Converons G zl Device Parea al mieken Signs Figure 3 The EP Modbus Configurator with the parameters of the variable IntVarSend In the leaves Data Item you define the variables with the process connections to the terminal communication port of the OPC Server The starting address and the type of the variables must be equ

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