Reading Relay Closure Count; Resetting Relay Closure Count - Keithley 2701 Service Manual

Section 3: Routine maintenance

Reading relay closure count

To determine the closure count of specific channels, send this query using remote communications:
:ROUTe:CLOSe:COUNt? (@clist)
Here, clist is the summary of channels. For example, to determine the closure count of channels 1
and 4 of a module in slot 1, the following query would be sent:
:ROUT:CLOS:COUN? (@101,104)
The following query would determine the closure count of slot 1 module channels 1 through 10:
:ROUT:CLOS:COUN? (@101:110)

Resetting relay closure count

The 2701 must be in the manufacturing calibration mode to reset the closure count. To do so, press
and hold the OPEN key while turning on the power, then send the :CAL:PROT:CODE code to unlock
calibration (KI002701). After resetting relay counts, send :CAL:PROT:LOCK to lock out calibration.
To reset the relay closure count of specific channels to 0, send this command using remote
communications:
:ROUTe:CLOSe:RCOunt (@clist)
clist is the summary of channels to be reset. For example, the following command resets channels
2 and 7 of a module in slot 1 to 0:
:ROUT:CLOS:RCO (@102,107)
The following command resets the count of slot 1 module channels 1 through 10:
:ROUT:CLOS:RCO (@101:110)
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Model 2701 Ethernet-Based DMM / Data Acquisition System Service Manual
2701-902-01 Rev. B / December 2018