On-Board® W Module Programming and Operation ... - PTB Sales

On-Board W Module Programming and Operation
CTI-CRYOGENICS
HELIX TECHNOLOGY CORPORATION
Table B-1: On-Board Module RS-232 Commands (Continued)
Command Parameter Description
n None Returns the last measured ROR value computed during a ROR
test cycle as an integer value. This value matches that presented
on the keypad/display.
r
P | X, form is
rP or rX
Polls an event count value which specifies the completion of
either the pump (P) or AUX (X) TC auto zero sequence. This
value is used by a remote computer to tell when an initiated
auto zero is complete.
Returns a modulo 256 (0-255) numeric value which is incremented
each time the auto zero operation completes. The
remote unit can detect the completion of the event by a change
in value.
s None Polls an event count modulo 256 (0-255) which is incremented
each time a REGEN cycle is performed. Used to indicate
whether the REGEN idle message should be REGEN COM-
PLETE or REGEN OFF.
t ? | =, form is t?
or t=
Command to either inquire (t?) or acknowledge and clear (t=)
the power recovery flag. A response of 1 is COOLDOWN, 2 is
REGENERATION, 3 is IN PROCESS, 4 is RECOVERED, 5 is
CHECK PUMP TEMP. Clear the flag with the t= command
after inquiring on the flag value.
u None Inquires pump for information in byte fail_cause of pump,
which contains 0 if AC to pump OK, else bits 4,5 set for fail of
each phase. Codes are@, P,p. Used to display of power phase
information of pump. OFF, ON, ERR1, and ERR2.
v None Inquires pump for several flag conditions combined as bits in
one response. The bits are biased by "0" for ASCII printable
results. The bit weights are:
1. Contending for rough valve is TRUE.
2. TRUE when purge gas fail detected in REGEN.
4. TRUE when heater failure detected in REGEN.
z [0,1, ?] Set/Clear/Query the user keypad access lockout state. When
True, the user is limited to the use of the MONITOR and
SERVICE functions on the keypad/display.
P/N 8040365 B-11