Technical Information
RS 232/RS 485 communication description
N. Read/Write Datatype Description Admitted Values
108 R/W N Baud rate 600 = 0
1200 = 1
2400 = 2
4800 = 3
9600 = 4
(default = 4)
109 W L Pump life/ cycle time/ cycle
number reset
To reset write
‘1’
110 R/W L Interlock type (default = 1) Impulse = 0
Continuous = 1
111 R/W L Analog output type: output
voltage signal proportional to
frequency or power
0 = frequency
1 = power
(default = 0)
120 R/W N Rotational frequency setting
(Hz)
150 to 1010
(default = 1010)
121 R/W N Maximum rotational
frequency in Hz (active only in
Stop condition)
150 to 1010
(default = 1010)
(on = closed)
Off = 0
(default = 1)
123
124
Reserved to Agilent service
125 R/W L Set the vent valve operation Automatic = 0
(see note 1.)
On command =
1 (see note 2.)
126 R/W N Vent valve opening delay
(expressed in 0.2 sec)
0 to 65535
(corresponding
to 0 to 13107
sec)
Reserved to Agilent service
200
202 R N Pump power in W (pump
current x pump voltage
TwisTorr 304 FS on board Controller User Manual / 87-901-028-01 (C) 167/178