The manual states that the totalizer function can count at 100kHz frequency. How do I access this count with the appropriate timestamp? I have the freebie version of BenchLink and it crashes at any scan interval less than 100msec.
How do I program in SCPI?
Jerry
Hi, I tested today my models 34970A and 34907A with totalizer channel with data logger benchlink 3 V4.3 with a 100 kHz count. I tested several scan intervals less than 100 ms. Yes, the refresh rate on the screen seemed frozen, but the software was still running and without losing any data. By giving a number of scan has done, the result appears at the end of the account, the display is not refreshed, but the data backup is possible and not corrupted.
I guess the software has a lot of active features that can slow down the acquisition process a bit near the limit of the meter. On picture , the speed limit of scan for Totalizer 34907A is 240/sec or around 4.2ms of time interval.
SCPI command
CONFIG for reading 100 sample with 10ms between sweep
:ROUT:SCAN (@203)
:FORM:READ:TIME:TYPE REL (timestamp REL or ABS)
:FORM:READ:TIME ON (read timestamp with DATA)
:FORM:READ:UNIT OFF (no unit reading)
:FORM:READ:CHAN OFF (no channel number reading)
:FORM:READ:ALAR OFF (no alarm status reading)
:TRIG:TIM 0.01 (delay 10ms between sweep in scan)
:TRIG:COUNT 100 (1 scan, 100 sweep (100 sample) and 10ms between sweep)
:INIT (start a scan of 100 sweep)
:FETCH? (read data, 100 sample)
Yves