The following table describes the Questionable2 assignments.Bit Bit Name DecimalValueDefinition0 not used not used 0 is returned1 IPK+ 2 Output is in positive peak current limit2 IPK- 4 Output is in negative peak current limit3 CSF 8 A current sharing fault has occurred4 MSP 16 Output is disabled by a master/slave protection5 SDP 32 Output is disabled by a Safety Disconnect System protection6 UV 64 An under-voltage protection has occurred.7-15 not used not used 0 is returnedStandard Event Status GroupThese registers are programmed by Common commands. The group consists of an Event and Enableregister. The Standard Event event register latches events relating to communication status. It is aread-only register that is cleared when read. The Standard Event enable register functions similarlyto the enable registers of the Operation and Questionable status groups. Refer to Status Diagram.The following table describes the Standard Event Status register bit assignments.Bit Bit Name DecimalValueDefinition0 OperationComplete1 All commands before and including *OPC have been executed.1 not used not used 0 is returned2 Query Error 4 The instrument tried to read the output buffer but it was empty,a new command line was received before a previous query has beenread, or both the input and output buffers are full.3 Device- specific Error 8 A device-specific error, including a self-test error, calibration error orother device-specific error occurred. Error Messages4 Execution Error 16 An execution error occurred. Error Messages5 Command 32 A command syntax error occurred. Error Messages6 not used not used 0 is returned7 Power On 128 Power has been cycled since the last time the event register was reador cleared.5 SCPI Programming Reference242 Keysight RP7900 Series Operating and Service Guide