Technical Information
RS 232/RS 485 communication description
N. Read/Write Datatype Description Admitted Values
203 R N Driving frequency in Hz
204 R N Pump temperature in °C 0 to 70
205 R N Pump status
Waiting intlk = 1
Starting = 2
Auto-tuning = 3
Braking = 4
Normal = 5
206 R N Error code
see the
300 R N Cycle time in minutes (zeroed
by the reset command)
0 to 999999
301 R N Cycle number (zeroed by the
reset command)
0 to 9999
302 R N Pump life in hours (zeroed by
the reset command)
0 to 999999
320
to
399
Reserved to Agilent service
400 R A CRC EPROM (QE) QE8XXXX
(where “XXXX”
are variable)
402 R A CRC Param. (PA) PA8XXXX
(where “XXXX”
are variable)
404 R A CRC Parameter structure "XXXX"
500 Reserved to Agilent service
503 R/W N RS 485 address 0 to 31
(default = 0)
504 R/W L Serial type select 0 = RS 232
1 = RS 485
(default = 0)
168/178 TwisTorr 304 FS on board Controller User Manual / 87-901-028-01 (C)