NI-488: Error connecting to driver or device. NI-488: Command requires GPIB Controller to be Controller-In-Charge. NI-488: No Listeners on the GPIB. NI-488: GPIB Controller not addressed correctly. NI-488: Invalid argument or arguments to function call. NI-488: Command requires GPIB Controller to be System Controller. NI-488: I/O operation aborted. NI-488: Nonexistent GPIB interface. NI-488: DMA hardware error detected. NI-488: DMA hardware uP bus timeout. NI-488: Asynchronous I/O operation in progress. NI-488: No capability for operation. NI-488: File system operation error. NI-488: Shareable board exclusively owned. NI-488: GPIB bus error. NI-488: Serial poll byte queue overflow. NI-488: SRQ stuck in ON position. NI-488: Unrecognized command. NI-488: Board not present. NI-488: Table error. NI-488: No GPIB address input. NI-488: No string input (write). NI-488: No count input (read). NI-488: Out of memory (MacBus read or write). NI-488: Insufficient memory (MacBus read or write).