Overview
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Type:
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Function
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Available as of:
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SystemInterface_1.32.6.0
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Versions:
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Current version
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Task
Determine the number of available characters in the read buffer of a device.
Description
This function provides the number of available characters in the read buffer of the device designated as i_stComIecId. The call is passed on to the serial driver.
Interface
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Input
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Data type
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Description
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i_stComIecId
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ST_LogicalAddress
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Device selection
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Return Value
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Data type
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Description
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DINT
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0: Number of available characters
-1: i_stComIecId invalid
-2: other error detected. Contact your Schneider Electric representative.
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