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IWS_Training_Guide_v.. - FF-Automation

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Contents<br />

<strong>IWS</strong> <strong>Training</strong> <strong>Guide</strong><br />

<strong>IWS</strong> Proprietary File and Database Format for Trend History<br />

Trend Data files are saved to the \Hst subfolder to a binary file (<strong>IWS</strong> proprietary format), or to a SQL relational<br />

database. The fields saved in the History Trend file or SQL Relational database are described in the following<br />

table:<br />

Field Name Data Type Remarks<br />

TimeStamp<br />

<br />

Bias<br />

DateTime<br />

Number<br />

(Integer or Real format<br />

depending on the tag type)<br />

Number<br />

TimeStamp (Date and Time) when the data was<br />

saved.<br />

<strong>IWS</strong> will create one field (column) in the database<br />

for each tag configured in the Trend worksheet.<br />

Difference (in minutes) from the Time Stamp<br />

columns and the GMT time. This field only exists<br />

for Version >=2<br />

InduSoft Web Studio 19–7

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