OPC-DA collector

basic settings the collector settings are used by the collector to connect to the opc da server progid description the programmatic identifier of the opc da server required yes example matrikon opc simulation 1 nodes description the nodes of the opc da server separated by commas required yes default localhost collectionsource description the source from which to collect data required yes options cache | device default cache measurement settings the measurement settings reflect the configuration possibilities for mapping a measurement to an opc da tag itemid description fully qualified opc da item name required yes example factry saw 1 collectiontype description the way this measurement should be collected from the opc da server required yes default polled options polled | monitored checkout the opc da collector /#data collection methods section for more information collectioninterval description the interval in milliseconds at which this measurement should be collected required yes default 5000 collectionoffset description the offset in milliseconds, relative to the 0th second of a minute, at which this measurement should be collected only relevant for polled measurements required yes default 0 data collection methods the opc da collector has 2 methods to collect measurement data, which are referred to as the collection type of a measurement polling polled measurements are read every x milliseconds (minimum of 1000ms), which is the collection interval this data collection method should be used for measurements for which the value changes regularly over time configure the interval depending on how frequent you want to collect data points for this measurement monitoring monitored measurements collect data on every change of the measurements value this data collection method polls the measurement at the minimum interval and notifies the collector whenever a change occurs typically, monitored measurements are configured for boolean or string data types that indicate an equipments state, f e for a valve that opens and/or closes only a few times per hour collector health opc da specific collector health messages see collector state docid\ cuxtvhahq2yyjjjwatdh8 for all generic collector health messages you can find the collector health and the collector health history in the detail view on the right, when selecting a collector in the historian admin webpage error initializing opc da client an error occurred while trying to initialize the opc da client this indicates that a collector setting hasn’t been configured correctly or that the opc da server isn’t reachable during initialization opc da server unavailable the opc da client lost connection with the opc da server limitations it is currently not possible to read arrays from the opc da server