User`s guide
9Maintenance
200 Agilent N1913A/1914A EPM Series Power Meters User’s Guide
–
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, LIM: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 power meter at this 
point. 
For example, SYST:LANG #15FETC?.
–178
Expression data not allowed
A legal expression data was encountered but not allowed by the power meter at this 
point. 
For example, SYST:LANG (5+2).
–211
Trigger ig nored
Indicates that <GET> or *TRG, or TRIG:IMM was received and recognized by the device 
but was ignored because the power meter was not in the wait for trigger state. 










