KB-31047: Real-time pens disappear.
Question: Why do some E3Chart’s real-time pens disappear after a certain time? Solution: This happens because BufferSize property sets a certain number of pens points to be saved in the…
Categoria: En
KB-29915: Vertical movement in chart’s pens.
Question: How can I configure a chart so that pens perform a bottom-up vertical movement? Solution: To do so, configure the numeric scale in the horizontal axis and the time…
KB-29843: Displaying variables with different scales on the same chart.
Question: How can I display variables with different scales in the same E3Chart? Solution: In E3Studio, create an axis for each scale and select the respective axis in each pen’s…
Settings for enabling network access to SQL Server.
This article illustrates the necessary settings to enable remote access to SQL Server Express 2005. 1. Go to Start–All Programs–Microsoft SQL Server 2005–SQL Management Studio Express and follow the instructions…
KB-29734: SQL Query returning a single value.
Question: In an application, an SQL Query returns three values to a certain field. How can I set this Query up to return only one of them? Solution: To do…
KB-32513: Select() and Update() in the same SQL clause.
Question: Can I set a Select() and an Update() in the same SQL clause, similarly to the example below? Update EQUIPMENT Set EQUIPMENT.EQUIPMENT=’‘, EQUIPMENT.DISABLED=, EQUIPMENT.CLASS_EQUIP=CLAS_EQUIP.INDEX, EQUIPMENT.SECTOR=SECTORS.INDEXWhere EQUIPMENT.INDEX= and CLAS_EQUIP.CLASS_EQUIP=’‘ and…
KB-30058: Setting up an E3Chart’s Y axis to display time and X axis to display values.
Question: How can I set up an E3Chart‘s vertical axis (Y) to display time and its horizontal axis (X) to display values? Solution: To do so, follow these procedures: Acess…
KB-28443: Firing an alarm according to the values of multiple tags.
Question: How can I fire an alarm when the values of a Digital Tag and an Analog Tag are, respectively, one (01) and fifteen (15)? Solution: To do so,…
KB-28109: Copying a screen from one project to another.
Question: How can I copy a screen from one project to another when both belong to the same domain? Solution: To do so, go to E3Studio, select Explorer mode, choose…
KB-26934: Linking a Historic to pre-existing table.
Question: Is it possible to link a Historic to a pre-existing table in the Database? Solution: Yes, it is possible. After setting the Historic object’s Database, just access the Link…
