Master network read write VI

Installed With: LabVIEW

This VI allows a mutex for the master API without restricting any other functions. This mutex is currently unimplemented.

Master network read write

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error in describes error conditions that occur before this node runs. This input provides standard error in functionality.

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status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred. Right-click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error.

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code is the error or warning code. Right-click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error.

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source describes the origin of the error or warning. Right-click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error.

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network master in accepts any network master object. This object will be used to provide access to the network.

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transmission data unit accepts an object which defines the transmission ADU used by the device. In the standard protocol, this includes RTU serial, ASCII serial, and TCP/IP ADUs.

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<Modbus data unit in> accepts an object which defines the protocol data unit (PDU) used by Modbus. This includes a function code and data.

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Modbus master in can accept any Modbus master instance.

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error out contains error information. This output provides standard error out functionality.

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status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred. Right-click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error.

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code is the error or warning code. Right-click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error.

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source describes the origin of the error or warning. Right-click the error in control on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error.

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<Modbus data unit in> returns the object provided as input which defines the protocol data unit (PDU) used by Modbus.

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Modbus master out returns the Modbus master instance provided as input.