DbClient is an important communication application offering an events queue that handles OPC events and features easy configuration for end users. This OPC Client application is driven by an open-standards database and will interact with OPC servers once an entry in a specific database table is made. Any major database can be used that has an ADO or OLEDB database provider. It interacts by adding, activating or removing OPC items.
Processing timers control the frequency of commands and updates sent to the OPC server, taking into consideration the milliseconds for the DbClient scan and the OPC processing time intervals. Commands include storing the most recent OPC item data, adding or removing OPC items and changing the state of OPC items. DbClient provides time-stamps when a new value is received from the OPC server, streamlining the process to store and record the most recent value and quality for flagged OPC items.
Monitoring and updating OPC servers is simplified. DbClient offers dynamic actions including adding OPC items with a specific server, group, address and item state. The product also allows for removal of the OPC items. Updating the current state of OPC Items from active, to inactive, to disabled can be completed as well.
DbClient has a Server Listing responsible for updating the list of OPC servers that will be used for reading values and data destinations, in addition to the Groups Listing set to provide a list of OPC groups available for use. The product also maintains the progress, result and time-stamp of every OPC transaction with the Writes Listing.
An error and message log, ASLogger, is another feature used to capture error messages, OPC connection and state changes, OPC data updates, OPC writes and troubleshooting messages. Designed to be used locally or remotely, technicians don’t have to go to specific locations to understand an issue and plan for a solution.
The innovative technological capabilities of AUTOSOL products are protected by US Patents 6,628,992; 6,950,851; 6,961,753; 7,073,182; 7,225,248; 7,587,481; 7,646,298; 7,673,337; 7,673,338; 7,747,710; 8,316,232; 8,364,950; 8,694,770; 8,898,481; 8,935,523; 8,966,117 and Patents Pending.