Edwards STP-iXA4507 Series - Readmeas; Command

STP-iXA4507 series Turbomolecular Pump
MT-91E-001-0
Page 83
SERIAL COMMUNICATION PROTOCOL
5
5.4.2 ReadMeas
Function: Reading the measured rotational speed.
Transmission frame:
PC->SIM
Stx
0
0
1
?
D
Etx
LRC
SIM->PC
Ack
PC->SIM
Ack
SIM->PC
Stx
0
0
1
Sp
D
Parameter 1 to 2
Etx
LRC
Parameter
Item
Data format
Remarks
1
[System reservation]
56-bits hexadecimal
coded ASCII
2
Measured rotational speed
(Unit: Hz)
16-bits hexadecimal
coded ASCII
Example:
Measured rotational speed: 0190
hex
= 400 Hz = 24,000 rpm
Parameter
1
2
ASCII
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
0
1
9
0-
HEX
30
31
39
30
*1 System reservation
5.4.3 Command
Function: Sending commands of START, STOP, RESET; these commands are valid only when it is
sent to the serial port set as the input operation port. Refer to Section 5.4.17, "SetOptionFunc" for the
setting method of the input operation port.
Transmission frame:
PC->SIM
Stx
0
0
1
Sp
E
Parameter 1
Etx
LRC
SIM->PC
Ack
PC->SIM
Ack
SIM->PC
Stx
0
0
1
#
Etx
LRC