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session refnum is a session refnum, which you use in subsequent communication for this session.
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n bytes to read indicates the number of bytes the VI reads.
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timeout ticks, if non-zero, indicates the number of ticks the PPC Inform Session VI waits for LabVIEW to establish a session.
After timeout ticks, LabVIEW returns the errTimedOut error. One tick equals 1/60 of a second. The default is 0, which indicates no timeout. Refer to PPC Inform Session for more information.
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poll wait indicates how frequently PPC Read checks to see whether LabVIEW has read the data successfully. The default is 10 ms.
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data bytes is the data written by the sender.
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data info is a cluster of application-specific information that LabVIEW uses when reading and writing blocks of data in a PPC session.
This cluster contains the following 32-bit integers that you can use to send information about the block of data to the receiving application:
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block creator indicates the creator of the block being written.
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block type defines the data type according to user-defined specifications.
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user data lists additional information about the block at the user's discretion.
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more indicates whether more data exists for the block that the VI reads. The application that writes the data can send the data in multiple pieces.
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error, if negative, indicates a Macintosh error. If positive, error indicates an error internal to the CIN that generated it.
Refer to the PPC Error Codes for a list of PPC error codes and their descriptions.
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