Stanford Research Systems SIM918, Руководство по эксплуатации и обслуживанию, Страница: 50 / 68

3 – 18 Remote Operation
Pulse ¬ STATUS Mode PSTA(?) { z }
Set (query) the Pulse
¬
STATUS mode
{
to z
=
( OFF 0 , ON 1 )
}
.
When PSTA
ON
is set, all new service requests will only pulse the
¬ STATUS signal LOW (for a minimum of 1
µ
s). The default behavior
is to latch ¬ STATUS LOW until a *STB? query is received.
A reset does not alter PSTA . The value in boldface above is the
power-on value.
PSTA OFF
Example:
Last Button LBTN?
Query the number of the last button pressed. The response is
LBTN? Last button
1
[GAIN ]
2
[GAIN ]
3
[AUTOZERO]
4
[Output 1 pps sync]
5
[INPUT Open]
6
[INPUT Shield]
7
[BIAS GND]
8 [BIAS Shield]
9
Both [GAIN ] and [GAIN ] (autocalibrate)
10
A button held upon power-on (reset)
The value
0
is returned if no button was pressed since the last LBTN? .
A query of LBTN? always clears the button code, so a subse-
quent LBTN? will return
0
.
LBTN?
Example:
5
Overload OVLD?
Query the current overload condition. The response is
OVLD? Overloaded
1
Bias
2 Output
4
Bias
+
Output
Combination overloads are reported by summing the values of the in-
dividual overload flags. This command complements the OLSR sta-
tus register described in Section 3.5.7, and the three overload flags
correspond one-to-one with bits in OLSR. However, once cleared
SIM918 Precision Current Preamplifier