FB_ReceiveVisionData - GetAdditionalString (Method)
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Type: |
Method |
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Available as of: |
V1.0.0.0 |
This chapter provides information on:
oTask
Retrieve an additional string of the vision protocol.
With the method GetAdditionalString, an additional string of the vision protocol can be read.
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Output |
Data type |
Description |
|---|---|---|
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q_etDiag |
General library-independent statement on the diagnostic. A value unequal to GD.ET_Diag.Ok corresponds to a diagnostic message. |
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q_etDiagExt |
POU-specific output on the diagnostic. q_etDiag = ET_Diag.Ok -> Status message q_etDiag <> ET_Diag.Ok -> Diagnostic message |
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q_sMsg |
STRING[80] |
Event-triggered message that gives more detailed information on the diagnostic state. |
|
Data type |
Description |
|---|---|
|
STRING[80] |
Additional string of the protocol. |
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q_etDiag |
q_etDiagExt |
Enumeration value of q_etDiagExt |
Description |
|---|---|---|---|
|
Ok |
0 |
Ok |
|
|
14 |
No data available. |
|
Enumeration name: |
NoDataAvailable |
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Enumeration value: |
14 |
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Description: |
No data available. |
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Issue |
Cause |
Solution |
|---|---|---|
|
No data available. |
There are no valid header data available. |
Ensure that vision data is available by verifying xVisionDataReceived before calling the method. |
|
Verify that an additional string is part of the vision protocol that was sent. |
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Enumeration name: |
Ok |
|
Enumeration value: |
0 |
|
Description: |
Ok |
Status message: Reading an additional string was successful.
