Occurs when the value and value quality change.
syntax
Private Sub AxIPLink1_ValueStateChanged(sender As Object,e As AxIPLINKLib6._DClientIPLinkEvents_ValueStateChangedEvent) Handles AxIPLink1.ValueStateChanged
Return Value
e.tagPath |
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Type: |
String |
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Tag path, e.g. U01.F01.T01 |
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e.value |
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Type: |
Void |
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The tag value. |
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e.state |
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Type: |
Void |
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The state of the value. True - Normal. False - Abnormal. |
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This event occurs when a value or the state of a value changes. The value status is True if communication with the PLC is normal. If an error occurs in PLC, the value status becomes False. If an error occurs in PLC, the tag value from the last time normal communication occurred is stored in Value.
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reference