Operation
4-8
P/N 8040375G001
C
HELIX TECHNOLOGY CORPORATION
-
TI
CRYOGENICS
Starting a Group Regeneration From the Network Terminal
1. Press REGEN 9 9. The display reads 1-MULTI PUMP RGN.
The 1 indicates that group 1 is selected for regeneration.
2. Press 1 to start a regeneration. The display reads PRESS 2 OR 3
REGEN PUMPS?.
3. Press 2 for a Full regeneration, press 3 for a FastRegen, press Clear
to cancel selection.
4. If you want to change the selected group number, press Next. The
display reads 1=GROUP SELECT .
5. Press Enter to change the selected group.
6. Enter the group number you wish to regenerate (2 for example) and
press Enter.
7. Press Last. The display reads 2-MULTI PUMP RGN .
8. To exit out of the multi-pump programming and selection press any
of the six function keys such as MONITOR.
The RS-232 Communication Ports
The Network Terminal has three RS-232 ports, each of which provides
access to the Network Terminal or pump information and control. All three
of the ports can be used simultaneously.
The ports are named so that they can be identified when setting the baud
rate for that port. Also, the names can indicate a relative usage for each of
the ports. For example, the HOST RS-232 port should typically be used for
communications to the system controller so that when installed, you will
know that port is constantly being used and should not be disconnected.
The AUXILIARY port and the SERVICE port could be used for programs
such as On-Board Central Control. The front SERVICE port provides
access to a port even when the Network Terminal is installed in a rack.
Each of the three RS-232 ports can be configured to have the same or
different baud rates. The allowable rates are 2400, 9600, 19200 and 38400
for the Host port and 2400, 9600, and 19200 for the Service and Auxiliary
ports. The baud rate can only be set from within the SERVICE 9 9 function
of the Network Terminal and cannot be set through an RS-232 command.
