Home : Products : Hach WIMS : Interfaces : Hach WIMS Direct Server-Side Interface to RsBIZWARE : Documentation : Topics specific to operation of this interface : Supported Variable Configurations for Interface Q12084
Q12101 - HOWTO: Supported Variable Configurations for Interface Q12084
 

Supported variable configurations for the Hach WIMS Direct Server-Side Interface to RsBIZWARE.

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

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

Now you are ready to configure a signal tag from the RsBIZWARE. The Tag name and a statistic are all that are mandatory.

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  •  This is a listing of all the statistics supported by this interface. This includes the following statistics for a specified time period:

AVERAGE

Take the average of the data points

SELECT AVG(Value) FROM ihRawData WHERE SamplingMode='Lab' AND Tagname='EF_FLOW' AND Timestamp>='3/1/2009 00:00:00' AND Timestamp <'3/2/2009 00:00:00' AND NumberofSamples=1440

TOTAL

Take the sum total of all values

SELECT SUM(Value) FROM ihRawData WHERE SamplingMode='Lab' AND Tagname='EF_FLOW' AND Timestamp>='3/1/2009 00:00:00' AND Timestamp <'3/2/2009 00:00:00' AND NumberofSamples=1440

MINIMUM

Get the minimum value

SELECT MIN(Value) FROM ihRawData WHERE SamplingMode='Lab' AND Tagname='EF_FLOW' AND Timestamp>='3/1/2009 00:00:00' AND Timestamp <'3/2/2009 00:00:00' AND NumberofSamples=1440

MAXIMUM

Get the maximum value

SELECT MAX(Value) FROM ihRawData WHERE SamplingMode='Lab' AND Tagname='EF_FLOW' AND Timestamp>='3/1/2009 00:00:00' AND Timestamp <'3/2/2009 00:00:00' AND NumberofSamples=1440

FIRST

Get the first value

SELECT TOP 1 Value, Timestamp FROM ihRawData WHERE SamplingMode='Lab' AND Tagname='EF_FLOW' AND Timestamp>='3/1/2009 00:00:00' AND Timestamp <'3/2/2009 00:00:00' AND NumberofSamples=1440 ORDER BY Timestamp

LAST

Get the last value

SELECT TOP 1 Value, Timestamp FROM ihRawData WHERE SamplingMode='Lab' AND Tagname='EF_FLOW' AND Timestamp>='3/1/2009 00:00:00' AND Timestamp <'3/2/2009 00:00:00' AND NumberofSamples=1440 ORDER BY Timestamp DESC

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

  1. Get FIRST value
  2. Get LAST value
  3. RESULT = LAST - FIRST
  4. IF RESULT < 0 THEN (10 ^ (Ceil(LOG(first_value) / LOG(10)))) - first_value + last_value

RANGE

Calculate the absolute value of the difference between the minimum and maximum values

  1. Get MIN value
  2. Get MAX value
  3. Get ABS(MIN - MAX)

INVENTORY

Return the total use based on a tank level signal. For example, the level is 10 feet at midnight and slowly goes down to 2 feet at 2:00 PM, then gets filled to 15 feet and slowly goes down to 8 feet at midnight. The inventory function would return ((10 - 2) + (15 - 8)) = 15.

  1. SELECT Value FROM ihRawData WHERE Tagname='TANK_LEVEL' AND SamplingMode='RawByTime' AND Timestamp>='03/01/2009 00:00:00' AND Timestamp<'03/02/2009 00:00:00'
  2. Loop throught the records returned and sum the downward trends greater than the Deadband

MA10M

Return a 10 minute moving average. 10 minutes is subtrated from the start time, and the end time is left as is.

SELECT AVG(Value) FROM ihRawData WHERE SamplingMode='Lab' AND Tagname='EF_FLOW' AND Timestamp>='2/28/2009 23:50:00' AND Timestamp <'3/2/2009 00:00:00' AND NumberofSamples=1450

  •  This is the value to multiply the result by when using parameter variable types. Commonly used to convert from one unit base to another. For example to convert gallons per minute (GPM) to gallons per day (GPD), set the scale factor to 1440 (1440 minutes per day).

  •  All three fields must have numeric values or the word None (as shown). The Low Range and High Range will crop data from the source. For example to eliminate negative numbers from a particular tag, set the Low Range to 0 (zero) - this will get any values equal to or greater than 0 (zero). The Deadband is used for the statistic Inventory and will elliminate noise levels up to the value specified. For example, if you enter .5 next to Deadband, any value change of .5 or less, will be ignored.

    • Start Time will set the beginning of the time slot for this variable.
    • Stop Time will set the ending time for the time slot.
    • Same Day as Start is only used by daily variables and it means the stop time is on the same day as the start time.
    • Day After Start is also only used by daily variables and it means the stop time is a day after the start time.
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Created on 3/20/2009 5:34 PM.
Last Modified on 3/20/2009 5:37 PM.
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