Instruction Manual PUC 28306.1.3 Other commandsSome actions can be activated directly with the help of certain commands. Here’s a listing ofthese commands:Nr. Name Format Antwort Bedeutung1 RecallWE PUC 28 Vx.x Configuration according delivery state(the old measurement range keepspreserved) and reset PUC 28 1)2 SaveSet OK Saving the actual configuration inEEPROM3 MZ OK start zero-point calibration cycle(ZPCC) now4 >CMD byte CMD Control wordBit 0 = 0 ZPCC automatically:Zero-point calibration isbeing startedautomatically by thePUC 28 every 15 min inthe first hour followingpower-up andafterwards every hourBit 0 = 1 ZPCC is being started byan RS232 command( no automaticcalibration)Bit 1 = 0 Don’t start ZPCC nowBit 1 = 1 Start ZPCC now(The rising edgespecifies the starting time,the bit has to be resetagain during or after theZPCC.)5 ?CMD CMD Reading of the control word6 Reset PUC 28 Vx.x Reset the PUC 28 1)7 >TCalibPlus OK re-calibrate the positive range 2)(switching to the input at the frontside)8 >TCalibMinus OK re-calibrate the negative range 2)(switching to the input at the frontside)9 >TCalibOK TCalibOKstart measurement for re-calibration 2)(-100Pa or 100Pa resp. -250Pa or250Pa must apply stable)10 >TCalibFinished OK terminates re-calibration (switching tothe input at the back side)11 RecallCalib OK delete re-calibration 3)1) After power-up as well as after a reset the PUC 28 comes up with the message “PUC28 Vx.x” (or “PUC 28/K Vx.x” for the PUC 28/K), where x.x represents the actualsoftware release. The time until this message appears might be up to 5 sec.2) The commands for re-calibration are only available at the device variants “PUC 28/K”.
