Endress+Hauser Tankvision Multi Scan NXA83B Operating Instructions Manual page 18

OPC Server Namespace
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The most efficient way to access these items is through the bit-mapped field, however if the
client does not support bit manipulations the Boolean data items may be used instead.
In addition to the standard bit-mapped status data there are a number of status fields that
have no fixed mapping, but rather have a "free form" bit allocation dependent on the type of
gauge being polled.
These codes include:
• Gauge Mode
• ExtendedGaugeStatus
At present only the Scientific Instruments 6280/6290 and Whessoe ITG60/70 gauges will
have a set of bits defined, all others will be blank.
8.5.4 Array Data Items
Certain of the data items are available as arrays of integers or floats. These include the
Element Temperatures (in the Tank Parameters block) and all Profile items in the
Profiles block.
Each array item will have 200 points. Array items will be in pairs, one with the actual values
and one with the corresponding statuses.
1 Array data item (Element Temperatures in the Tank Parameters block)
Thus the Element Temperatures data item contains the array of 200 actual data values
whilst the Element Temperatures Status data item contains the array of 200 statuses that
correspond to the values.
Tankvision
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NXA83_MatrikonOPC-Explorer_Aray-Data-Items
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