Ametek 7280 Instruction Manual page 204

Appendix F, ALPHABETICAL LISTING OF COMMANDS
MAG[.]
MP[.]
MSK [n]
\N n
F-12
First value, Curve Acquisition Status: a number with five possible values, defined
by the following table:
First Value Significance
0 No curve activity in progress.
1 Acquisition via TD command in progress and running.
2 Acquisition via TDC command in progress and running.
5 Acquisition via TD command in progress but halted by HC
command.
6 Acquisition via TDC command in progress but halted by
HC command.
Second value, Number of Sweeps Acquired: This number is incremented each
time a TD is completed and each time a full cycle is completed on a TDC acquisition.
It is zeroed by the NC command and also whenever a CBD or LEN command is
applied without parameters.
Third value, Status Byte: The same as the response to the ST command. The
number returned is the decimal equivalent of the status byte and refers to the
previously applied command.
Fourth value, Number of Points Acquired: This number is incremented each time
a point is taken. It is zeroed by the NC command and whenever CBD or LEN is
applied without parameters.
Magnitude
In fixed point mode causes the lock-in amplifier to respond with the magnitude value
in the range 0 to 30000, full-scale being 10000.
In floating point mode causes the lock-in amplifier to respond with the magnitude
value in the range +3.000E0 to +0.001E-9 volts or +3.000E-6 to +0.001E-15 amps.
Magnitude, phase
Equivalent to the compound command MAG[.];PHA[.]
Set/read service request mask byte
The value of n sets the SRQ mask byte in the range 0 to 255
Address command
When the model 7280 is daisy-chained with other compatible instruments this
command will change which instrument is addressed. All daisy-chained instruments
receive commands but only the currently addressed instrument will implement or
respond to the commands. The exception is the \N n command. If n matches the
address set from the front panel the instrument will switch into addressed mode. If n
does not match the address set from the front panel the instrument will switch into
unaddressed mode. Note that the \N n command does not change the address of an
instrument but which instrument is addressed.
NOTE: All instruments must have a unique address.