![background image](http://html1.mh-extra.com/html/racal-instruments/2251a/2251a_operators-manual_776057057.webp)
3-28
Table 3.20 - Alphabetical List of 2251A Command Codes (continued)
CODE
RESPONSE
FT
Selects Fall Time A measurement mode
*IDN?
Identification Query, response is a ID string.
IP
Instrument Preset. Sets the 2251A to its power-up (Default) state. Refer to
Table 3-1 for further details of the power-up state.
MD
Disables Math function (Default)
ME
Enables Math function
NA
Disables 100 Sample Averaging mode
NW
Selects Negative pulse width A measurement mode
*OPC
Operation Complete, sets Op Complete bit of the ESR
*OPC?
Query for when all operations are complete, response = 1
*OPT?
Query for Channel C option installed, 0 = no, 1 = yes
PA
Selects Period A measurement mode
PH
Selects Phase A relative to B measurement mode
PW
Selects Positive Pulse Width A measurement mode
Q0
SRQ assertion UNCONDITIONALLY inhibited
Q1
SRQ assertion upon error detection
Q2
SRQ asserted for measurement ready
Q3
SRQ asserted for measurement ready or error detection
Q4
SRQ asserted for frequency standard change
Q5
SRQ asserted for frequency standard change or error detection
Q6
SRQ asserted for frequency standard change or measurement ready
Q7
SRQ asserted for frequency standard change or error detection or measurement
ready.
R0
External arm input Receiver on backplane connector P2 A 23 TTLTRG0
R1
Enable external arm input on backplane connector P2 C 23 (TTLTRG1)
R2
Enable external arm input on backplane connector P2 A 24 (TTLTRG2)
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Содержание 2251A
Страница 9: ...iv Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...
Страница 27: ...1 18 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...
Страница 97: ...5 14 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...
Страница 99: ...6 2 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...
Страница 100: ...6 3 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...
Страница 101: ...6 4 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...
Страница 102: ...6 5 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...
Страница 103: ...6 6 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...
Страница 104: ...6 7 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...
Страница 105: ...6 8 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...
Страница 106: ...6 9 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...
Страница 107: ...6 10 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...