Appendix B: Configuration File
Upon startup of the Server, a default configuration file is created, C:\ProgramData\AutoSol\Communication Manager\7\asiOpcUa.Config.xml. The settings contained in the file can be edited using the ACM Monitor application, as described in the Configuration section of this document. Normally, manual editing of the file is not needed. The exception would be to change the default values of the Transport Quotas, message queue sizes, or message sizes to fine tune a large system. The table below details the elements of the configuration file that can be manually edited.
If an editing mistake is made and the Server will not load the configuration file, delete the configuration file and restart the Server. A new default file will be created.
Element | Description | Default |
|---|---|---|
OperationTimeout | The default timeout to use when sending requests. | 600000 |
MaxStringLength | The maximum length of string encoded in a message body. | 1048576 |
MaxByteStringLength | The maximum length of a byte string encoded in a message body. | 1048576 |
MaxArrayLength | The maximum length of an array encoded in a message body. | 65535 |
MaxMessageSize | The maximum length of a message body. | 4194304 |
MaxBufferSize | The maximum size of the buffer to use when sending messages. | 65535 |
ChannelLifetime | The lifetime of a secure channel. | 300000 |
SecurityTokenLifetime | The lifetime of a security token. | 3600000 |
MaxSessionCount | The maximum number of open sessions. | 100 |
MinSessionTimeout | That minimum period of that a session is allowed to remain open without communication from the client (in milliseconds). | 10000 |
MaxSessionTimeout | That maximum period of that a session is allowed to remain open without communication from the client (in milliseconds). | 3600000 |
MaxBrowseContinuationPoints | The maximum number of continuation points used for Browse/BrowseNext operations. | 10 |
MaxQueryContinuationPoints | The maximum number of continuation points used for Query/QueryNext operations. | 10 |
MaxHistoryContinuationPoints | The maximum number of continuation points used for HistoryRead operations. | 100 |
MaxRequestAge | The maximum age of an incoming request (old requests are rejected). | 600000 |
MinPublishingInterval | The minimum publishing interval supported by the server (in milliseconds). | 100 |
MaxPublishingInterval | The maximum publishing interval supported by the server (in milliseconds). | 3600000 |
PublishingResolution | The minimum difference between supported publishing interval (in milliseconds). | 50 |
MaxSubscriptionLifetime | The maximum time a Subscription Lifetime can be set to by the client. The actual Subscription Lifetime used can be a lower value. A subscription is closed when the Subscription Lifetime expires without a client publish. | 3600000 |
MaxMessageQueueSize | The maximum number of publish messages saved in the queue for each subscription. (This number multiplied by MaxNotificationsPerPublish determine the maximum number of items that can be updated from the address space.) | 1500 |
MaxNotificationQueueSize | The maximum number of notifications saved in the queue for each monitored item. | 1500 |
MaxNotificationsPerPublish | The maximum number of notifications per publish message. (This number multiplied by MaxMessageQueueSize determine the maximum number of items that can be updated from the address space.) | 1000 |
MinMetadataSamplingInterval | The minimum sampling interval for metadata. | 1000 |
MinSubscriptionLifetime | The minimum time a Subscription Lifetime can be set to by the client. The actual Subscription Lifetime used can be a higher value. | 10000 |
MaxPublishRequestCount | The max publish request count. | 100 |
MaxSubscriptionCount | The max subscription count. | 200 |
MaxEventQueueSize | The max size of the event queue. | 10000 |
ShutdownDelay | The server shutdown delay. | 5 |
DisableHiResClock | Disables the hi-res clock if the QueryPerformanceCounter does work on a particular machine. | false |
| MaxNodesPerWrite | The maximum number of nodes that can be written to by a client in one request. | 10 |
| TraceMasks | The trace mask used for generating log messages when the log option "OPC UA Stack" is enabled. This value should only be changed at the direction of AUTOSOL support. The value entered can be a summation of the following trace mask values. None - 0; Errors - 1; Information - 2; Stack Trace - 4; Service Calls - 8; Service Details - 16; Operations - 32; Operation Detail - 64; Start/Stop - 128; External System - 256; Security - 512 To enable all trace masks, enter a value of 1023. | 939 |
For assistance, please submit a ticket via our Support Portal, email autosol.support@autosoln.com or call 281.286.6017 to speak to a support team member.