Real Time eXecutives, Inc. OPC DA Client for RTXHDB

The OPC DA Client for RTXHDB is an OPC compliant, 32 bit, multi-threaded Windows based client that supplies a direct interface to one RTXHDB historical database residing on a LAN server (File Server). It normally will reside on the process control system of the OPC DA Server so as to provide local buffers. These buffers are used to back up the collection for the RTXHDB server. These buffers are designed to handle any loss of data problems caused by the network or server. The OPC DA Client for RTXHDB provides rescaling and, if the OPC DA Server supports browsing, OPC Tag Browsing. (Unlimited Number of Tags)

FEATURES

• OPC DA Client, OPC Data Access 1.0a, OPC Data Access 2.0

• Provides a review of local buffered history with a wealth of statistics to determine the optimum timing for collection lists and historical database updates.

• Supports the creation of a log file for historical events.

• Can Add, Delete, Modify, Stop/Start, Pause collection lists.

• Provides the ability to select buffer size and update frequency for each collection list.

• Supports phase shifting input collection and adjusting update frequency for load leveling.

• Can browse for input sources.

• Provides the ability to select the time stamp from the process control system or local PC.

• Supports the filtering and scaling of input tags, plus conversion to actual engineering values.

• Can define aliases for tag names.

• Provides the ability to append CVS files and files from other RTXHDB databases.

• Can output to an intermediate file before updating to RTXHDB.

Specifications

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