STP-iS2207 Series Turbomolecular Pump 
 
MT-89E-001-C
Page 122 
5
SERIAL COMMUNICATION PROTOCOL 
5.4.20  SetOptions 
Function: Changes the setting value of optional function. The parameter n depends on the optional 
function. 
Transmission frame: 
           
*1
       
PC->SIM
Stx
0
0
1
Sp
0
Parameter 1 to n  Etx
LRC
 
SIM->PC
                  Ack
 
PC->SIM
              Ack
SIM->PC
Stx
0
0
1
#
Etx
LRC
 
*1
  HEX code of the ASCII character '0' is "30". 
 
Parameter
Item  Data format  Remark 
1  Optional function number  16-bits hexadec
ASCII 
see Table 30 
2 to n  Function item     
 
Optional function number  Value  Total parameter n  Remark 
Second speed option setting  0014  3  see 5.4.20.1 
Second speed selection  0015  2  see 5.4.20.2 
Table 30 - Option function number and parameter list 
 
5.4.20.1  Second speed option setting 
Settings for second speed can be changed.   
CAUTION 
 
There is an endurance l
imit of setting changes (no more than 24 times per day for about ten years). 
If this limit is exceeded, it not only may become impossible to change the setting but can also cause 
pump failure. Do not make setting changes in excess of this endurance limit.