Supported variable configurations for the Hach WIMS Direct Server-Side Interface to Dorsett Controls SCADA System.

To configure a variable to hold values from the source data, select Edit/View Variables in the Hach WIMS client and select the Interface tab.

On the Interface tab, click the Interface To radio button. The drop down box next to the option is now enabled, click the drop down arrow and choose the appropriate interface name (name given when configuring the interface).

Now you are ready to configure a signal tag to the source data. The Tag name and a Statistic are all that are mandatory.

SCADA Tag: This is the Point ID of the parameter.  It may include the parameter path concatenated with @@.  Use the  button to browse your Location parameters to find GUID. 

NOTE:  The Gen Browser is not currently implemented in this Interface. 

Statistic:  Sets how to summarize the raw data.  The following statistics are supported:

AVERAGE	Take the average of the data points
TOTAL	Take the sum total of all values
MINIMUM	Get the minimum value
MAXIMUM	Get the maximum value
FIRST	Get the first value
LAST	Get the last value
DIFF	Calculate the difference between the first and last values. If the first value is larger than the second then it will perform the following calculation: (10 ^ (Ceil(LOG(first_value) / LOG(10)))) - first_value + last_value Ceil will cause the value to round up
RANGE	Calculate the absolute value of the difference between the minimum and maximum values
COUNT	Counts the number of data points.
MINTIME	The date and time when the minimum value occurred.
MAXTME	The date and time when the maximum value occurred.
TIMEGT(x)	Counts the number of data points greater then 'x'.
TIMELT(x)	Counts the number of data points less than 'x'.
TIMEEQ(x)	Counts the number of data points equal to 'x'.