Column Description
Data Type Data type of sampled tag:
0 = empty
1 = boolean
2 = byte
3 = short
4 = int
5 = unsignedByte
6 = unsignedShort
7 = unsignedInt
8 = float
9 = double
Value Value of the sample
Timestamp
(UTC)
Timestamp in UTC format
Sampling
Time(ms)
Sampling interval time in milliseconds
Quality Tag value quality. Information coded according the OPC DA standard and stored in a byte data (8 bits)
defined in the form of three bit fields; Quality, Sub status and Limit status.
The eight quality bits are arranged as follows: QQSSSSLL. For a complete and detailed description of all
the single fields, please refer to the OPC DA official documentation.
Commonly quality values
The most commonly used quality values returned by the HMI acquisition engine are:
Quality
Code
Quality Description
0 BAD The value is bad but no specific reason is given
4 BAD Specific server problem with the configuration. For example, the tag has been
deleted from the configuration file (tags.xml).
8 BAD No value may be available at this time, for example the value has not been
provided by the data source.
12 BAD Device failure detected
16 BAD Timeout before device response.
24 BAD Communication failure
HMWIN Studio |User Manual| v206 (2017-06-30) | EN| © 2014-2017 Panasonic Electric Works Europe AG
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