ODBC

[Everardo Hernandez]

I sent this message to Support and I haven't had a response. Maybe you can help me. I would like to know your experiences with Citadel because until now it has been nothing but trouble to me. I am even thinking that it would be better to have a relational database that will waste a lot of space just to void the limitations that Citadel imposes. Is cheaper to buy a bigger disk than spend days trying to solve a new problem every time. Thanks in advance for your time.
Here is my original message:
I am having a hard time using Citadel database and trying to open files using ODBC from the Excel files that Lookout creates.

First Citadel:

I need to store some information that I will use to create HISTORIC histograms. Because of the limitations of Lookout I am using Visual Basic as interface. The problem is that every time I force a value to be stored in the database and I run my VB program, the values that are showed by my program are not refreshed immediately, in other words, if I force a change to be stored in the database, and a few seconds later I run my VB program, the new stored values are not shown by the ODBC interface. I have to wait several minutes and close all my programs and run again my program with the query. The other problem is that after I run the program 3 or 4 times (that is happening now always the second time), the VB program crashes or the Citadel database does not respond to the query and the Citadel service starts to take most of the CPU time of my computer. If I run MSQuery it crashes often after executing one or two queries.

In the program I am sending there are many combinations of SQL queries that I have tested. I tried to perform some Data Transforms to calculate the minimum, maximum and average value generated by a random waveform, and the response was always the same value (which was incorrect as it was evident taking a look to the Points table). I am sending a copy of my database in case that it is useful.

Excel files:

I want to know which version of driver of ODBC Excel I have to use to be able to read the files. Every time I tried to connect using it says that the format of my table is not the "expected" one. If I open the file with Excel 2000, the program says that the version of the file is Excel 2.1. My ODBC driver supports from 3.0 to 97/2000.





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[Everardo Hernandez]

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[namran_a]

Respected Sir,

I am working on Industrial Automation system and I am using Lookout 4.0 .There are few problums I am facing in Lookout

• Serial interface
• Vb interface
• Excel connection
• Simply Run

Serial interface: In serial interface I want to connect my Micro controller 89C51 with the lookout (As my Hardware is not in PLCor RTU .It is Made On Microcontroller ).So I want to apply conditioning on ASCII code what I am recieving from my controller (actually it is sanding ASCII code on different condition).HOw I use to control in Lookout. I have seen Modules Slave but I think this is not for me .Kindly guide me regarding this. 

VB Interface: Regarding this I want to connect my VB applet with lookout

Excel Connection: How  I can Store My Data on Excel by lookout.

Simply Run: I want to make  a EXE file where I can run on first time ( at the moment I am 1st have to start lookout than it start my project)

am I totaly depandent on lookout after making my project