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3-31
Table 3.20 - Alphabetical List of 2251A Command Codes (continued)
CODE
RESPONSE
S76
Checks Inputs A and B DACs. DACs continuously ramped (must be in CK
mode)
S77
Input A relay check. Requires a 10 MHz input signal. Refer to Section 5.1.7.
(must be in CK mode)
S78
Checks Input B relay. Requires a 10 MHz input signal. Refer to Section 5.1.7
(must be in CK mode)
S80
Allows two character function header on output string (Cancels S81)
S81
Turn off two character header on output string
SDTn
Sets arming delay time to n seconds. The permitted range for n is
800mS > n > 200
F
s
SFD
Disables special functions
SFE
Enables special functions. Used with S10 - S81
SGTn
Sets Gate time to n seconds. Refer to Section 3.3.2 for a description of the
relationship between resolution and gate time.
SLAv
Sets Input A trigger level to v Volts. The permitted range of values for v is -5.1 V
to +5.1 V if X1 input attenuation is selected or -51 to +51 V if X10 input
attenuation is selected. Increments of 20 mV and 200 mV are permitted in the
X1 and X10 input attenuation modes.
SLBv
Sets Input B trigger level to v Volts. The permitted range of values for v is -5.1 V
to +5.1 V if X1 input attenuation is selected or -51 to +51 V if X10 input
attenuation is selected. Increments of 20 mV and 200 mV are permitted in the
X1 and X10 input attenuation modes.
SMn
Stores the present configuration of the 2251A in RAM memory location n. n=0
to 9. Stored settings are recalled by the RMn command code. Note all stored
settings are lost on powering down the 2251A.
SMXa
Sets Math constant X to value a. The permitted ranges of values for a are
1 x 10
> a
$
1 x 10
and -1 x 10
$
a > -1 x 10 . a=0 is also permitted.
10
-9
-9
10
SMYa
Sets Math constant Y to value a. The permitted ranges of values for a are
1 x 10
> a
$
1 x 10 and -1 x 10
$
a > -1 x 10 . a=0 is permitted.
10
-9
-9
10
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Содержание 2251A
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