User manual MATRIKON OPC TUNNELLER

[. . . ] MatrikonOPC Tunneller User's Manual MatrikonOPC Tunneller User's Manual This manual is a product of Matrikon Inc. Matrikon Inc. Suite 1800, 10405 Jasper Avenue Edmonton, AB T5J 3N4 Canada Phone: 780. 448. 1010 Fax: 780. 448. 9191 www. matrikonopc. com Document Revision History: Date 2004-21-21 2005-07-28 2005-11-04 2006-01-24 2006-03-09 2006-11-07 2007-03-14 2007-04-23 Document Version 1. 0 1. 1 1. 2 1. 3 1. 4 1. 5 1. 6 2. 0 Initial document. Updated to version 2. 2 Added clarification. Converted to new template, general edit. [. . . ] Clicking on Options -> Unregister All, or pressing the red X (Figure 18), will un-register all configured Tunneller connections. Figure 16 - Remove Selected Tunneller Connection Figure 17 - Remove All Connections to Selected Computer Figure 18 - Remove All Tunneller Connections WARNINGS: · Before removing or modifying any Tunneller server connection, make sure that there are no clients actively connected. If there are active connections, the OPC Clients must be disconnected before the Tunneller server connection is removed. When removing a Tunneller server connection and recreating it, ensure that any OPC Client that has the connection information cached clears its cache and obtains the new Tunneller server connection information. Failure to do so may cause unpredictable behaviour. · OPC Client Requirements The OPC Clients that will be connecting to Tunneller are required to fulfill the following requirements: · · Allow inproc servers. A small portion of Tunneller will be loaded inproc. This is a required interface but some clients do not support it. It must be supported for Tunneller to relay communication failure information. GetStatus Call Tunneller uses a TCP connection to do its data transfer but does not automatically detect TCP line failures. The GetStatus call should be used as a heartbeat mechanism for line failure detection. The OPC Client must call GetStatus at regular intervals to ensure that the line is available. Tunneller does not initiate the GetStatus call on its own but relies on the OPC Client to make the GetStatus call. The call can be made as often as needed depending on the required detection level. Frequent calls ~1 second will detect a line failure quickly but will also detect a line that goes down but might have come back immediately. Infrequent calls can allow a momentary interruption to pass but will not detect a prolonged failure until the line is needed by an actual call. The user's specific requirements will indicate how often the GetStatus needs to be called. MatrikonOPC Tunneller v3. 0. 0. 0 User's Manual 25 Figure 19 - GetStatus Settings Figure 19 shows the configuration options for the GetStatus call. Option Use Remote Status Description Checking this option will cause the GetStatus call to be made across the TCP line to the end OPC Server. Un-checking this option will cause any GetStatus call made to Tunneller to be returned immediately with Tunneller's own status. This option (only available with the Use Remote Status turned on) forces an internally generated GetStatus message to be sent to the end OPC Server but returns Tunneller's own status immediately to the calling client. The remote call will be made, as close to as possible to the rate at which the end OPC Client is calling GetStatus on Tunneller. If a communication failure is detected, Tunneller's status will be set to failed. In subsequent GetStatus calls the status field of the status structure returned by Tunneller will be set to failed. This option (only available with the Use Remote Status turned on) forces the calling OPC Clients GetStatus call to the end OPC Server. The status of the end OPC Server will be returned. [. . . ] The new DeactivateGroupWhileAddingfOfItems parameter is added on tunneller. ini file to control the activation of the group while adding items. If its value is set to 0, then this problem will not occur. Search the MatrikonOPC Support Knowledge Base at www. opcsupport. com to find the answers to other commonly-asked MatrikonOPC Tunneller questions. MatrikonOPC Tunneller v3. 0. 0. 0 User's Manual 41 Un-Installation To successfully un-install MatrikonOPC Tunneller, using the Add/Remove Programs from the Microsoft Windows Control Panel is recommended. Click on the Start button and highlight the Control Panel item. [. . . ]