GPIB Misc Function

Owning Palette: GPIB Functions

Requires: Base Development System

Performs the GPIB operation indicated by command string. Use this low-level function when the other high-level, traditional GPIB functions are not suitable.

Add to the block diagram

Find on the palette

	command string is the GPIB operation to perform. The following table shows the functions you can specify in command string. Note  address is the address in the command string. Device Functions Description loc address Go to local. off address Take device offline. pct address Pass control. ppc byte address Parallel poll configure (enable or disable). cac 0/1 Become active controller. cmd string Send IEEE 488 commands. dma 0/1 Set DMA mode or programmed I/O mode. gts 0/1 Go from active controller to standby. ist 0/1 Set individual status bit. llo Local lockout. loc Place controller in local state. off Take controller offline. ppc byte Parallel poll configure (enable or disable). ppu Parallel poll unconfigure all devices. rpp Conduct parallel poll. rsc 0/1 Request or release system control. rsv byte Request service and/or set the serial poll status byte. sic Send interface clear and set remote enable (REN). sre 0/1 Set or clear remote enable (REN). To specify the GPIB Controller used by this function, use a command string in the form, ID: xxx, where ID is the GPIB Controller (bus number) and xxx is the three-character command and its corresponding arguments, if any. If you do not specify a Controller ID, LabVIEW assumes 0. Refer to GPIB Device and Controller Functions for more information.
	error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
	output string is the response the function returns when you conduct a parallel poll with the rpp command string. Set output string only when you use the rrp command string.
	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 Bit Numeric Value Symbolic Status Description 0 1 DCAS Device Clear state 1 2 DTAS Device Trigger State 2 4 LACS Listener Active 3 8 TACS Talker Active 4 16 ATN Attention Asserted 5 32 CIC Controller-In-Charge 6 64 REM Remote State 7 128 LOK Lockout State 8 256 CMPL Operation Completed 12 4096 SRQI SRQ Detected while CIC 13 8192 END EOI or EOS Detected 14 16384 TIMO Timeout 15 -32768 ERR Error Detected
	error out contains error information. This output provides standard error out functionality.