STATus:OPERation:PTRansition 
This command edits the positive transition trigger register of operation event. The parameter 
determines which bits of operation event register is 1 will cause the OPER bit of status byte 
register to be set to 1.    
Command syntax:STATus:OPERation:PTRansition <NR1> 
Parameter:0~255 
Example:STATus:OPERation:PTRansition 128 
Query syntax:STATus:OPERation:PTRansition? 
 
SYSTem:ERRor? 
This command is used to read the error code and the error information. 
The following is the error code and the definition: 
(101)Too many numeric suffices 
(110)No input command 
(114)Invalid Numeric suffix 
(116)Invalid value 
(117)Invalid dimensions 
(120)Parameter overflowed 
(130)Wrong units for parameter 
(140)Wrong type of parameter 
(150)Wrong number of parameter 
(160)Unmatched quotation mark 
(165)Unmatched bracket 
(170)Invalid command 
(180)No entry in list 
(190)Too many dimensions