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Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. manual-no.: 999073 / 15/12/2009
Function
Command Parameter
Description
selected pressure
OUT_SP_1
XXXX
unit according to preselection
(0001 to 1060 mbar (hPa) or 0001 to 0795 Torr)
selected pressure
OUT_SP_V
XXXX
unit according to preselection
with venting*
(0001 to 1060 mbar (hPa) or 0001 to 0795 Torr)
selected frequency
OUT_SP_2
XX.X
Hz (01.0 to 60.0 in steps of 0.5 Hz or 99.9 for “HI”)
pressure for restart
OUT_SP_3
XXXX
unit according to preselection
(VACUU•LAN)
(see OUT_SP_1)
time for automatic
OUT_SP_4
XX:XX
hours:minutes
switching off (VACUU•LAN)
automatic switching off
OUT_SP_5
XXXX
unit according to preselection
(vacuum control)
(see OUT_SP_1) or ”0000” for automatic
switching off (“AE”)
operation mode
OUT_MODE
X
1: continuous pumping
2: vacuum control without automatic
3: vacuum control with automatic
driving air admittance
OUT_VENT
X
0: venting valve close (not automatically)
valve
1: venting valve open (process control
stopped)
starting process control
START
stopping process control STOP
X
1: termination of process control
2: termination of process control and storage of
the actual pressure as new set point
Remote operation**
REMOTE
X
0: set controller to local operation
1: set controller to remote operation
The single abbreviations of a command are separated by underscores (ASCII 5FH).
Command and parameter are separated by ignore characters (ASCII 20H).
The string is terminated with <CR><LF> (ASCII 0DH, ASCII 0AH).
Set the values with leading zeros if necessary.
Connector assignment
2: RxD
5: Mass
3: TxD
7: RTS
4: DTR
8: CTS
*
Pressure setting with venting is only possible in operation mode ”Vacuum control” if a venting valve is
connected and configurated and vacuum control is started. The venting valve opens automatically if the
actual pressure is 10 mbar below the preset pressure. Automatic venting becomes inactive if vacuum
control is stopped (STOP or VENT), setting a pressure value using the command OUT_SP_1 or if the
operation mode is changed. Activate the command OUT_SP_V again if necessary.
** If remote operation is selected or deselected, the user has to ensure that no dangerous status of the
system due to the change of the mode of operation can occur and to provide appropriate safety
measures, especially if selecting remote operation interferes with a locally operated active process.
Write commands
