code: def act(self):
          
          g = get_root(self).globals
          g.clog.debug('Power on pressed')
  
          if execCommand(g, 'online'):
              g.clog.info('ESO server online')
              g.cpars['eso_server_online'] = True
  
              if not isPoweredOn(g):
                  success = execCommand(g, 'pon')
                  if not success:
                      g.clog.warn('Unable to power on CLDC')
                      return False
  
              # change other buttons
              self.disable()
              g.observe.start.enable()
              g.observe.stop.disable()
              g.setup.powerOff.enable()
  
              success = execCommand(g, 'seqStart')
              if not success:
                  g.clog.warn('Failed to start sequencer after Power On.')
  
              try:
                  g.info.run.configure(text='{0:03d}'.format(getRunNumber(g)))
              except Exception as err:
                  g.clog.warn('Failed to determine run number at start of run')
                  g.clog.warn(str(err))
                  g.info.run.configure(text='UNDEF')
              return True
          else:
              g.clog.warn('Failed to bring server online')
              return False
docs: Power on action