KB-28006: E3 application hangs when OPC Server cannot communicate with the PLC.
Question: How can I keep an OPC Client from hanging when it cannot communicate with the PLC? Solution: To do so, you must set your OPC Client’s ServerId property as…
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KB-16262: Accessing an OPC Server on the Internet.
Question: Which port must be released in the firewall exceptions when accessing an OPC Server on the Internet? Solution: That would be port 135.
KB-29156: Opening a screen via another object’s Click event.
Question: Can I open a screen by clicking in a graphic object in another screen? Solution: Yes. To do so, you can use an Open Screen pick (as seen below).…
KB-28426: Tag license not released even when the tag is deactivated.
Question: Why are the tag licenses not released when this driver’s objects are deleted or deactivated at run time? And if a few settings are altered, why does the driver…
KB-26036: Playing different .WAV files according to alarm severity.
Question: How can I play different .WAV files according to the active alarm’s severity? Solution: To do so, there are two possibilities: Create user events in Viewer to test ActiveHighAlarms,…
KB-13387: Telling if an alarm is set to be handled as event.
Question: How can I tell if the tag being used in AlarmConfig is set to be handled as event? Solution: To do so, just check how the alarm’s Event property…
KB-21018: Showing an alarm from previous day.
Question: The communication between E3 and a driver has been lost. According to the remote buffer, a certain alarm fired on the previous day, and still has not left this…
KB-24803: Recording alarms’ quality.
Question: How can I have the alarms’ quality to also be recorded in the database? Solution: To do so, you can configure the field Quality (in the Alarm Server) to…
KB-28528: InTime, OutTime, and E3TimeStamp properties.
Question: What is the difference between InTime, OutTime, and E3TimeStamp properties? Solution: InTime: records date/time of the value when it gets in alarm. OutTime: Records date/time of the value when…
KB-19080: Adding fields to alarms to record extra information.
Question: How can I add fields to alarms so that the query to Alarms table returns the values from alarms, plus the values from the added field? Solution: To do…