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ModbusTCP_ReadExceptionStatus


Header: STD.h
Namespace: fil
Module: FoundationLite

Function Code 07. Attempts to read Exception Status

Syntax

void fil::ModbusTCP_ReadExceptionStatus
(
	const fil::SocketId& inSocket,
	const ftl::Optional<int>& inTimeout,
	int inUnitID,
	int& outStatus
)

Parameters

Name Type Range Default Description
Input value inSocket const SocketId& Connected socket ID on port 502.
Input value inTimeout const Optional<int>& 10 - NIL Timeout in milliseconds, block if not specified.
Input value inUnitID int 0 - 255 1 Default is 1
Output value outStatus int&

Errors

List of possible exceptions:

Error type Description
IoError Received message length is too short.