SYSTem Subsystem 11
U8480 Series Programming Guide 285
–148 Character data not allowed 
A discrete parameter was received but a character string or a numeric parameter was expected. Check the 
list of parameters to verify that you have used a valid parameter type. 
For example, MEM:CLE CUSTOM_1. 
–151 Invalid string data
An invalid string was received. Check to see if you have enclosed the character string in single or double 
quotes. 
For example, MEM:CLE “CUSTOM_1.
–158 String data not allowed 
A character string was received but is not allowed for the command. Check the list of parameters to verify 
that you have used a valid parameter type. 
For example, AVER:STAT 'ON'. 
–161 Invalid block data 
A block data element was expected but was invalid for some reason. 
For example, *DDT #15FET. The 5 in the string indicates that 5 characters should follow, whereas in this 
example there are only 3. 
–168 Block data not allowed
A legal block data element was encountered but not allowed by the U8480 Series at this point.
For example, AVER #0 or SENS:AVER:STAT #0.
–178 Expression data not allowed
A legal expression data was encountered but not allowed by the U8480 Series at this point.
For example, SENS:AVER:COUN (32+2).
–211 Trigger ignored 
Indicates that *TRG or TRIG:IMM was received and recognized by the device but was ignored because 
the U8480 Series was not in the wait-for-trigger state. 
–213 Init ignored 
Indicates that a request for a measurement initiation was ignored as the U8480 Series was already 
initiated. 
For example, INIT:CONT ON INIT.
–214 Trigger deadlock 
TRIG:SOUR was set to HOLD or BUS, and a READ? or MEASure? was attempted, expecting 
TRIG:SOUR to be set to IMMediate.