MB Slave Read Discrete Inputs (poly).vi
Returns the slave's discrete inputs from Starting Address to Starting Address + Quantity.
Starting Address is the first address location of the discrete inputs to read. This address is sometimes referred to as offset. | |||||||
Quantity represents how many discrete inputs to read. The VI returns the discrete inputs at Starting Address and each following discrete input up to Quantity. For example, if Starting Address is 0 and Quantity is 4, the VI reads discrete inputs from addresses 0, 1, 2, and 3. | |||||||
error in describes error conditions that occur before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. If an error occurs while this VI or function runs, the VI or function runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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Discrete Inputs represents the data stored in the discrete inputs table. | |||||||
error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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