remove local function round because it already exist
move cell min info into seperate model script.
configur
 *critical alarm level in mV. default 3400V
 *use Horn 0-3. 0 is no horn and 1-3 different horn samples. default 0
 *warn level in mV. default 3500mV
 *repeattime in sec. for warn level and critical alarm. default 4sec
 *Info drop voltage in mV. this repeat info cell-min voltage each time cell drop this value. default 100mV