154
53220A/53230A User’s Guide
5
Triggering and Gating
Wait-For-Trigger and Triggered States
In order for the counter to
accept
triggers which start the trigger and gate
cycle, the counter must be
initiated
. Initiating the counter places the instru-
ment in the
wait-for-trigger
state (Figure 5-4).
Figure 5-4. The Counter ‘Wait-for-trigger’ State.
The counter can be initiated using the following commands:
N O T E
The trigger count and sample count are ignored when making continuous totalize
measurements. The trigger count is also ignored when making continuous,
gap-free frequency or period measurements. Only one trigger is accepted when
using these functions. See the ‘Programmer’s Reference’ section of the Agilent
53210A/53220A/53230A Product Reference CD for more information.
triggers received
=
TRIGger:COUNt?
# readings
=
SAMPle:COUNt?
Yes
No
Yes
No
INITiate:IMMediate
READ?
MEASure?
Triggered state
(
to gate cycle
)
(repeated for each reading in sample count
(
from gate cycle
)
Wait-for-trigger state
trigger received
Summary of Contents for 53220A
Page 10: ...10 53220A 53230A User s Guide Contents...
Page 34: ...34 53220A 53230A User s Guide 1 Preparation for Use...
Page 142: ...142 53220A 53230A User s Guide 4 53220A 53230A Input Signal Conditioning...
Page 190: ...190 53220A 53230A User s Guide 5 Triggering and Gating...
Page 268: ...268 53220A 53230A User s Guide 8 Instrument Status Figure 8 1 The 53220A 53230A Status System...
Page 274: ...274 53220A 53230A User s Guide 8 Instrument Status...
Page 288: ...288 53220A 53230A User s Guide A 53220A 53230A Error Messages...
