Network Terminal Installation, Operation, and Maintenance Instructions
P/N 8040375G001
B-11
C
HELIX TECHNOLOGY CORPORATION
-
TI
CRYOGENICS
E
None
Returns a numeric code that identifies which pump modules
are assigned to one of the five cooperative sets. This mem-
bership is logically based on the programming of the five
sets, and does not rely on whether the pumps are currently
communicating or not. Pump modules not in this set are not
required to cooperate when accessing a rough valve during
automatic REGENs.
F
None
Returns a numeric code that identifies which pump modules
which have a need to cooperate for rough valve (which
means they are in the set data returned by the E command
above) have been granted the exclusive use of the rough
valve for their set. Membership in this set indicates an active
REGEN in process for the corresponding member pump.
Other pumps which belong to the same map sets (’A’ - ’E’) as
those currently granted rough usage will be held off from
REGEN usage of the rough valve until relinquished.
G
? | 0 - 32767
Command to set or query the Multiplexor Network pass-
word value. If a ? is the argument, then the current password
value is returned. This value is used to open up menu access
to the remote pumps using one common password. If a num-
ber 0 - 32767 is the argument, then this value becomes the
new password value, with a value of 0 being no password.
L
None
Returns Set
Code 0 - 31
Query which of map sets A - E are locked out by external
intelligence. Power up defaults to none. M command may
acquire or grab sets which are not already in cooperative use.
N command is used to free or release remote sets. They are
also automatically released if the Network Terminal is not
given L query at least each 5 seconds when supervision
active. O command sets/clears/queries supervisor mode.
Returned value is sum of remote locked set’s identification
weights.
SET ID # Weight
A 1
B 2
C 4
D 8
E 16
Table B-2: Network Terminal RS-232 Commands (Continued)
Command
Parameter
Description