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3.6.3 SYSTEM FAULT STATUS = ALR
The SET command requires nine parameters. All but the first parameter are ignored. The first
parameter is used to set or clear a user generated test alarm.
Remote Command Sequence: $ALRabcdefghi
Unit Response: $ALR
The QUERY command requires no parameters.
Remote Command Sequence: ?ALR
Unit Response: ?ALRabcdefghi
?ALR: Component Fault Status indicator
a-i: "0" or "1" ASCII numeric character
0 = No fault
1 = Fault
a-i indicates the status of the component faults described below.
a
Test Alarm
b
Logged Alarm
c
LO Alarm
d
Power Supply Alarm
e
Reserved for future use
f
Reserved for future use
g
External Alarm
h
Reserved for future use
i
Reserved for future use
3.6.4 UNIT ATTENUATION = ATT
The SET command requires a three-digit parameter representing the attenuation in dB. The
three-character string “INC” or “DEC” can be used in place of the attenuation parameter to
increment or decrement the attenuator by 0.2 dB.
Remote Command Sequence: $ATTttt, $ATTINC or $ATTDEC
Unit Response: $ATT
The QUERY command requires no parameters.
Remote Command Sequence: ?ATT
Unit Response: ?ATTttt
ATT: Attenuation indicator
ttt: Three-digit parameter indicating attenuation in tenths of a dB.
INC: Used in place of “ttt” to increment the attenuator 0.2 dB
DEC: Used in place of “ttt” to decrement the attenuator 0.2 dB
