XENTRA 4900 communication protocol
Supported device types and versions
Communication line configuration
Communication station configuration
I/O tag configuration
Literature
Changes and modifications
Document revisions
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Communication supports reading data from Servomex XENTRA 4900 devices.
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Required communication line parameters:
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Other parameters, see the topic Communication line - configuration dialog box.
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- Communication protocol: Servomex XENTRA.
- Station address is not used (one XENTRA device is being connected on the line)
Station protocol parameters
The following station protocol parameters can be defined:
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If there is used a keyword with an invalid value in the initialization string, there will be used corresponding default value according the table 1.
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Possible I/O tag types: Ai (Analog Input) or TiA (Absolute Time Input).
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TiA type: there can be configured only one I/O tag of TiA type - the index (address) of 0. The I/O tag get the time and date from the items of the indexes of 1 and 2. In the example above - it is the value of 16:15:32 14-07-1997.
I/O tag value time
Times of new values of I/O tags can be:
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One of the options is being defined by means of the station protocol parameter XT (see the table 1).
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- Ver. 1.2 – February 8th, 2000 – update of 4.07 and 4.10 versions
- Ver. 1.3 - April 12th, 2002 - the protocol parameters SC added
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