Send Function

Owning Palette: GPIB 488.2 Functions

Requires: Base Development System

Sends data bytes to a single GPIB device.

This function is similar to the SendList function, except that the Send function sends data to a single GPIB device.

Refer to GPIB Function Defaults for more information about the timeout and address defaults.

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bus The function addresses the interface indicated by bus as a Talker. bus refers to the GPIB bus number. If you have only one GPIB interface in your computer, the default bus number is 0. Refer to the software installation instructions included with your GPIB controller for additional GPIB interfaces.
address addresses the device indicated by address as a Listener. If you do not wire address, the function sends data string with no addressing, thereby sending it to all previously addressed Listeners. To send data string to several devices, use the SendList function. If a secondary address is required, use the MakeAddr function to format the primary and secondary addresses properly.
mode describes how to signal the end of the data to the Listener. This input accepts the following values.

0Do nothing to mark the end of the transfer (default).
1Send NL (linefeed) with EOI after the data bytes.
2Send EOI with the last data byte in the string.
data string contains the data bytes that the function sends to the GPIB device.
error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
status is a Boolean array in which each bit describes a state of the GPIB Controller. If an error occurs, the function sets bit 15. GPIB error is valid only if bit 15 of status is set.

The following table shows the numeric value and symbolic status of each bit in status. This table also includes a description of each bit.
Status BitNumeric ValueSymbolic StatusDescription
01DCASDevice Clear state
12DTASDevice Trigger State
24LACSListener Active
38TACSTalker Active
416ATNAttention Asserted
532CICController-In-Charge
664REMRemote State
7128LOKLockout State
8256CMPLOperation Completed
124096SRQISRQ Detected while CIC
138192ENDEOI or EOS Detected
1416384TIMOTimeout
15-32768ERRError Detected
byte count refers to the number of bytes that pass over the GPIB.
error out contains error information. This output provides standard error out functionality.