SendCmds Function

Owning Palette: GPIB 488.2 Functions

Requires: Base Development System

Sends GPIB command bytes.

You normally do not need to use SendCmds for GPIB operation. Use it when specialized command sequences, not provided for in other functions, must be sent over the GPIB.

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

 Add to the block diagram  Find on the palette
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 the GPIB controller for additional GPIB interfaces.
command string contains the command bytes the function sends over the GPIB.
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.