Error Response; End Of Message - Comtech EF Data UT-4518E-1 Installation And Operation Manual

UT4500 Series Up Converter
Remote Control
B.5.5 E R
RROR
If a converter cannot execute a Command or detects a protocol violation, an error
response is generated. An error is flagged by changing the "/" command designator in the
response to a "?". Following the "?" error symbol are two characters which are unique
error symbols useful for computer analysis. The two error symbols are followed by a text
string explaining the error for the convenience of a human operator. For this document
ER is used for the generic case examples response.
Example:
B.5.6 E O M
ND F
End of message strings were devised in such a way that an orderly screen presentation
would result when converters are controlled by simple ASCII terminals.
B.5.6.1 C
OMMAND
The end of message for a command is a carriage return. For this document 'cr' is used for
the carriage return.
Example:
B.5.6.2 R
ESPONSE
End of message for a response is a carriage return, line feed and a bracket: 'cr''lf'].
Example:
ESPONSE
>DEV?COM ER Error Message 'cr''lf']
ESSAGE
E
NDING
<DEV/COM_'cr'
E
NDING
>DEV/COM_'cr''lf']
60
MN/UT4500.IOM
Rev. 0