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Function Code 07. Attempts to read Exception Status
Syntax
void avl::ModbusTCP_ReadExceptionStatus ( const avl::SocketId& inSocket, const atl::Optional<int>& inTimeout, int inUnitID, int& outStatus )
Parameters
Name | Type | Range | Default | Description | |
---|---|---|---|---|---|
inSocket | const SocketId& | Connected socket ID on port 502. | |||
inTimeout | const Optional<int>& | 10 - | NIL | Timeout in milliseconds, block if not specified. | |
inUnitID | int | 0 - 255 | 1 | Default is 1 | |
outStatus | int& |
Errors
Error type | Description |
---|---|
IoError | Received message length is too short. |