KB-28190: Filter in SQL Query using time value.
Question: How can I query a certain period (initial and final date), while also adding filter it by hour within this period? (For example: the query must return data only…
Categoria: En
KB-27418: Storing historic alarms in E3Alarm.
Question: Can E3Alarm store the acknowledged alarms that have already returned to the normal status? That is, is it possible not to remove them from the list, so that they…
KB-28636: Setting up alarm’s Message column’s width and name.
Question: How can I set up the alarm’s Message column’s width and name?Solution: Via E3Studio, go to E3Alarm’s properties window, and on Columns tab select the name of the column…
KB-13180: SQL query returning values every 10 minutes.
Question: How can I have an SQL query return values every ten minutes, even when the Historic keeps recording these values every second? Example: 4h 30min – tag1 = 1…
KB-29045: E3Alarm’s Operator field remains blank when the alarm is active.
Question: Why does Operator field in E3Alarm remain blank when an alarm is active, even if there is a user logged to the system? Solution: Only when the alarm is…
INFO-0002722: E3 Server hangs when OPC driver initializes.
OVERVIEW When executing a domain as a service connecting to an OPC server that runs on the same machine (also as a service), E3 Server hangs on initialization.WORKAROUND To avoid…
KB-29341: Using tag’s timestamp for viewing and recording alarms.
Question: How can I use the timestamp of a tag read via DNP driver for viewing and recording alarms? Solution: To do so, use InTime timestamp, which can be selected…
BUG-0008903: E3 Admin’s icon still in execution if the domain is stopped when in maintenance.
OVERVIEW E3 Admin’s icon is displayed as if the domain were running when all projects are put in maintenance and the domain is stopped by the Studio. HOW CAN I…
BUG-0009236: Both servers activated when a server leaves maintenance.
OVERVIEW In HotStandby systems, whenever a machine previously in Standby leaves maintenance, it starts executing the application, while also keeping it running in the previously active server. HOW CAN I…
BUG-0009287: Domain can be opened, but not edited in Studio.
OVERVIEW Studio appears to have no domain loaded when a domain file with the old format is opened. DETAILS Sometimes, an older domain (from versions previous to E3 version 3.0)…