Modbus Station¶

BrowseName: ModbusStation
SuperType: Communication station (CommunicationStation)

Properties¶

Name	BrowseName	DataType	Description
Maximum job size in bytes	MaximumJobSizeInBytes	UInt32	Maximum size in bytes of a transmission of tags from the PLC. 0 = 128 bytes (maximum value); different from 0: limits the maximum duration of transmission from the PLC and the maximum latency of the writes to the PLC following the reading to the set value.
Maximum gap in bytes	MaximumGapInBytes	UInt32	Maximum distance in bytes between two tags to be part of the same transmission.
Unit identifier	UnitIdentifier	Byte	Device ID in accordance with the Modbus protocol specification
Write multiple coils	WriteMultipleCoils	Boolean	Enables multiple write mode for Coil data
Write multiple registers	WriteMultipleRegisters	Boolean	Enables multiple write mode for Holding Register data
IP address	IPAddress	String	(TCP mode) Unique address to reach the PLC on the network
Port	Port	UInt16	(TCP mode) Defines the number of the port used by the TCP-IP connection. It must match the one configured in the PLC.
Timeout	Timeout	Duration	(TCP mode) Maximum wait time in milliseconds of the driver to receive a response from the PLC.
Tag optimization	TagOptimization	Boolean	Enables/disables the grouping of multiple tags in a single read. If the PLC doesn’t support the read multiple tags simultaneously mode, disable this option.
Swap bytes	SwapBytes	Boolean	This selection makes it possible to swap, for “word”-type data, the bytes between them. The result will be that the data linked between Q Application and device will swap the “high” byte with the “low” byte and vice versa, for each task word-type data.
Swap Words	SwapWords	Boolean	This selection makes it possible to swap, for “double word”-type data, the words between them. The result will be that the data linked between the Q Application and device will swap the word “high” with the word “low” and vice versa, for each task double-type data.
Swap DWords	SwapDWords	Boolean
Operation code	OperationCode	CommunicationOperationCode	(Inherited from Communication station)
	Tags	Object	(Inherited from Communication station)
	Types	Object	(Inherited from Communication station)