code: def putCtrlConf(self, eleobj, ctrlkey, val, type='raw'):
          
          if ctrlkey in eleobj.ctrlkeys:
              if type == 'raw':
                  newval = val
              else:  # val should be translated
                  newval = eleobj.unitTrans(val, direction='-')
              epics.caput(eleobj.ctrlinfo[ctrlkey]['pv'], newval)
              return True
          else:
              return False
docs: put the value to control PV field
  
              :param eleobj: element object in lattice
              :param ctrlkey: element control property, PV name
              :param val: new value for ctrlkey
              :param type: set in 'raw' or 'real' mode, 'raw' by default
                           'raw': set PV with the value of 'val',
                           'real': set PV with the value translated from 'val'