Provides a simple function for defining the unit ID which is the target of Modbus master read and write operations. This function takes effect immediately, and will change the target of any future operations using the instance returned by Modbus master out. Multiple units can be accessed simultaneously by forking the wire. This function only applies when using the RTU or ASCII serial transmission data unit. The TCP/IP transmission data unit ignores the unit ID.
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Modbus master in can accept any Modbus master instance. |
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unit ID defines the device targeted by all Modbus master read and write operations. This value is only used with a serial transmission data unit. |
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error out contains error information. This output provides standard error out functionality.
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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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Modbus master out returns the Modbus master instance provided as input. |