STP-iS2207 Series Turbomolecular Pump
MT-89E-001-C
Page 124
5
SERIAL COMMUNICATION PROTOCOL
5.4.21 ReadOptions
Function: Reads the setting value of optional function. The parameter n depends on the optional
function.
Transmission frame:
*1
PC->SIM
Stx
0
0
1
?
0
Parameter 1 Etx
LRC
SIM->PC
Ack
PC→SIM
*1
Ack
SIM→PC
Stx
0
0
1
Sp
0
Parameter 1 to n Etx
LRC
*1
HEX code of the ASCII character '0' is "30".
Parameter
Item Data format Remark
1 Optional function number
(receive/return)
16-bits hexadecimal
coded ASCII
see Table 31
2 to n Function items (return)
Optional function number Value Total response parameter n
Remark
Second speed option setting 0014 4 see 5.4.21.1
Second speed selection 0015 2 see 5.4.21.2
Table 31 - Option function number and parameter list
5.4.21.1 Second speed function setting
Settings for second speed can be changed.
Parameter
Item Data format Remark
1 Optional function number
16-bits hexadecimal
coded ASCII
0014 hex
2 Second speed setting
(Unit: Hz)
16-bits hexadecimal
coded ASCII
3 Second speed option
setting
16-bits hexadecimal
coded ASCII
0000 hex:DISABLE
00FF hex:ENABLE
4 Selected speed value
(Unit: Hz)
16-bits hexadecimal
coded ASCII