IoDrvModbusTCPSlave (FB)¶

FUNCTION_BLOCK IoDrvModbusTCPSlave EXTENDS IoDrvBase IMPLEMENTS ICmpIoDrvParameter

This function block is generated for each Modbus TCP slave device in the device tree.

InOut:

Scope	Name	Type	Initial	Comment
Input	`xEnable`	`BOOL`	TRUE	TRUE : start operation, open sockets
Output	`xOnline`	`BOOL`		TCP Port opened, ready for receiving request.
	`xInternalError`	`BOOL`	FALSE	Unrecoverable internal error (e.g. if mem-alloc fails or no license)
	`ErrorCode`	`UDINT`		error code
	`Port`	`UINT`		Port Number
	`uiClientConnections`	`UINT`		number of currently established client connections (TCP/IP)
	`xTimeout`	`BOOL`		Timeout (if configured) expired. Holding Registers and Coils are set to zero.

Properties:

Enable

Methods:

UpdateCommunicationSettings

Structure: