ResetSys Function

Owning Palette: GPIB 488.2 Functions

Requires: Base Development System

Performs bus initialization, message exchange initialization, and device initialization.

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

Details  

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.
	address list contains the primary address of the GPIB device with which the function communicates. If a secondary address is required, use the MakeAddr function to put the primary and secondary addresses in the proper format.
	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 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.

ResetSys Details

First, the function asserts Remote Enable (REN), followed by Interface Clear (IFC), unaddressing all devices and making the GPIB controller (the System Controller) the Controller-In-Charge.

Second, the function sends the Device Clear (DCL) message to all connected devices. This ensures that all IEEE 488.2-compatible devices can receive the Reset (RST) message that follows.

Third, the function sends the *RST message to all devices whose addresses are contained in the address list array. This message initializes device-specific functions within each device.