diff --git a/DEMO b/DEMO new file mode 100644 index 0000000..4ea49cd --- /dev/null +++ b/DEMO @@ -0,0 +1,127 @@ +First run a pvAccess test server (portable channel access server equvivalent) by +running ./runTestServer in another terminal (or in background). + +pvget, pvput and eget utilities are delivered by pvAccessCPP (caget and caput equvivalents). +They are located in pvAccessCPP/bin/$EPICS_HOST_ARCH directory. + +1. Get the value of a V4 scalar PV +---------------------------------- +> pvget testValue +testValue 0 + + +2. Put the value of a V4 scalar PV +---------------------------------- +> pvput testValue 1.23 +Old : testValue 0 +New : testValue 1.23 + + +3. Get the value of a V4 array PV +---------------------------------- +> pvget testArray10_1 +testArray10_1 10 0 1 2 3 4 5 6 7 8 9 + + +4. Put the value of a V4 array PV +---------------------------------- +> pvput testArray10_1 3 11 22 33 +Old : testArray10_1 10 0 1 2 3 4 5 6 7 8 9 +New : testArray10_1 3 11 22 33 + + +5. Get the values of all the fields of V4 record (-r is pvAccess request string) +-------------------------------------------------------------------------------- +> pvget -r 'field()' testValue +testValue +uri:ev4:nt/2012/pwd:NTScalar + double value 1.23 + alarm_t alarm + int severity 0 + int status 0 + string message + time_t timeStamp + long secondsPastEpoch 0 + int nanoSeconds 0 + int userTag 0 + display_t display + double limitLow 0 + double limitHigh 0 + string description + string format + string units + control_t control + double limitLow 0 + double limitHigh 0 + double minStep 0 + valueAlarm_t valueAlarm + boolean active false + double lowAlarmLimit 0 + double lowWarningLimit 0 + double highWarningLimit 0 + double highAlarmLimit 0 + int lowAlarmSeverity 0 + int lowWarningSeverity 0 + int highWarningSeverity 0 + int highAlarmSeverity 0 + double hystersis 0 + + +6. Get the values of some fields of V4 record (-r is pvAccess request string) +-------------------------------------------------------------------------------- +> pvget -r 'field(value,timeStamp,alarm)' testValue +testValue +structure + double value 1.23 + time_t timeStamp + long secondsPastEpoch 0 + int nanoSeconds 0 + int userTag 0 + alarm_t alarm + int severity 0 + int status 0 + string message + + +6. Monitor the value of a V4 scalar PV +-------------------------------------- +> pvget -m testCounter +testCounter 406 +testCounter 407 +testCounter 408 +testCounter 409 +^C + + +7. Get a NTMatrix and print as a matrix +--------------------------------------- +> eget -a columns=3 -a rows=5 -s testNTMatrix + 0.677423 0.456543 0.11271 + 1.31041 1.10541 1.64136 + 2.41162 2.11947 2.01143 + 3.06775 3.67029 3.55055 + 4.0458 4.71389 4.38239 + + +8. Get a NTMatrix and print its transponse matrix +------------------------------------------------- +> eget -a columns=3 -a rows=5 -t -s testNTMatrix + 0.677924 1.66402 2.42248 3.8881 4.22758 + 0.874961 1.20251 2.56682 3.21442 4.92651 + 0.47145 1.65475 2.4864 3.79319 4.80394 + + +9. Get a NTTable and print as a table +------------------------------------- +> eget -a columns=3 -s testNTTable + column0 column1 column2 + 0.6783 1.62252 2.48407 + 0.188775 1.72518 2.72885 + 0.740506 1.11392 2.75991 + 0.679227 1.58597 2.80799 + 0.775342 1.3701 2.83385 + 0.164793 1.19263 2.52135 + 0.680618 1.46619 2.29619 + 0.152323 1.28396 2.98274 + 0.0926253 1.44459 2.96131 + 0.753354 1.23773 2.66854