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Data Acquisition
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Optiflow-Le provides a simple interface to update
work-in-progress. At its simplest form, you may just
manually key-in the data from time-to-time. It's like
entering data into a spreadsheet. Needs no training
and operators / supervisors / staff can
enter data with ease. You may have as many data
acquisition terminals as you need. You may also
integrate it with your HMI system.
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Data Acquisition can be automated as well. Depending on
where data gets generated and what kind of access you
have, there are several ways to automate data acquisition
(hand held devices, data acquisition boards, barcodes ...
and so on). Most widely used data acquisition technique is
through OPC controls.
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Work-in-Progress Data Acquisition console
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data acquisition using OPC DA. |
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OPC is an acronym for OLE (Object Linking &
Embedding) for Process Control. OPC Data Access
(OPC DA) is a group of standards that provides
specifications for communicating real-time data from
data acquisition devices such as PLCs. The standard specifies the continuous
communication of real-time plant data between control
devices from different manufacturers.
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OPC DA deals only with real-time data. There are three
attributes associated with OPC DA; Value,
Quality of the Value and a Timestamp. OPC client
makes a request and collects this information at
specified time intervals. Client also applies a
timestamp and updates the database.
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You can also integrate other data acquisition systems
such as SCADA (Supervisory Control and Data
Acquisition).
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Data Acquisition, in most cases, may have to be
customized to your exact requirement.
Optiflow-Le's data acquisition routines are open,
meaning that you can integrate most of these systems
with ease.
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