Edwards STP Series User Manual

STP-iXR1606 Turbomolecular Pump
MT-79E-001-D
Page 107
5
SERIAL COMMUNICATION PROTOCOL
Parameter Items Data format Remark
1 Speed Set Point
(Unit: Hz)
16-bits hexadecimal
coded ASCII
*1
*1 When the value set to the parameter is larger than the upper limit, it is automatically set to the upper limit. When the value
set to the parameter is smaller than the lower limit, it is automatically set to the lower limit.
Example:
Speed Set Point : 0190
hex
= 400 Hz = 24,000 rpm
Parameter 1
ASCII 0 1 9 0
HEX 30 31 39 30
5.4.13 ReadSpeedSetPoint
Function: Reads the "Speed Set Point" value. This value is the same as "ReadSetPoint" parameter 1
(Speed Set Point).
Transmission frame:
PC->SIM Stx 0 0 1 ? h Etx LRC
SIM->PC Ack
PC->SIM Ack
SIM->PC Stx 0 0 1 Sp h Parameter 1 Etx LRC
Parameter Item Data format Remark
1 Speed Set Point
(Unit: Hz)
16-bits hexadecimal
coded ASCII
Example:
Speed Set Point : 015E
hex
= 350 Hz = 21,000 rpm
Parameter 1
ASCII 0 1 5 E
HEX 30 31 35 45

Edwards STP Series Specifications

General

Brand	Edwards
Model	STP Series
Category	Water Pump
Language	English