178 Keysight E8402A, E8404A C-Size Mainframes User and Service GuideProgramming the Enhanced Monitor SYSTem SubsystemSYSTem:COMMunicate:SERial[:RECeive]:SBITs <bits>SYSTem:COMMunicate:SERial[:RECeive]:SBITs? [MIN|MAX|DEF]SYSTem:COMMunicate:SERial[:RECeive]:SBITs sets the number of stop bits forRS-232 communication. Valid parameters are 1 or 2. Default is 1 stop bit.SYSTem:COMMunicate:SERial[:RECeive]:SBITs? returns an integer (1 or 2)representing the number of stop bits for RS-232 communication.ParametersReturned DataComments– When used with :SBITs, the MIN parameter sets the number of data bits tothe minimum value, 1. When used with :SBITs? it returns the minimumvalue of 2 but does not change the actual number of data bits used.Likewise, MAX sets or returns the maximum number of stop bits (2), andDEF sets/returns the default number of data bits, 1.– While this command operates independently of either the ...BITs and...PARity <type> commands, there are combinations which are not allowedbecause of their data frame bit width. The following table shows thepossible combinations:Name Type Range of Values Default Description<bits> numericenum.1, 2MIN|MAX|DEF1 Number of Stop Bits.Type Range Descriptionint16 1, 2 Number of Stop Bits....BITS ...PARity <type> ...SBITs Frame Bits7 NONE 1 disallowed7 NONE 2 107 ODD/EVEN 1 107 ODD/EVEN 2 118 NONE 1 108 NONE 2 118 ODD/EVEN 1 118 ODD/EVEN 2 disallowed
