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
T
[1-2] {0-8,ABCF]
[4 digit number]
{| {[?] [0,1,2,8]}
This command programs the setpoint relays. The first parameter
tells the relay number (1 or 2). The second parameter is one
of two forms. The first, used for setting the item to be programmed,
consists of a selector (0,1,4-8). This form is followed
by a third parameter, a 4 four digit number, if the selector
is 0 - 8. The A - F selectors do not require a following numeric
parameter, as they are logical function settings.
The second form is used to query the settings and consists of
the "?" command element followed by a selector (0-2, 8) to
indicate what data is being queried.
Selector meaning for first form:
0 = Set first stage LL (deg Kelvin)
1 = Set first stage UL
4 = Set Pump TC LL (microns)
5 = Set Pump TC UL
6 = Set AUX TC LL (microns)
7 = Set AUX TC UL
8 = Set time relay (0-9999 seconds)
A = Set unconditional ON
B = Set unconditional OFF
C = Set as REGEN status tracking relay
D = Set as rough valve tracking relay
F = Set as pump motor ON/OFF status tracking relay
Selector meaning for second form:
0:=Query previously set LL (meaning depends upon previous use)
1:=Query previously set UL (meaning depends upon previous use)
2:=Query last sent first form selector (0,1,4-8) used to
establish particular relay function
8:=Query relay time delay (0-9999 seconds)
Example: "$T 1 8 30" /*Set relay time delay to 30 seconds*/
VA [?] Read pump serial number.
Y ? Read elapsed time. The units are in hours and expressed as an
integer. The range is up to 65,000 hours.
Z [?] Read the number of REGEN cycles that have been completed.
P/N 8040365 B-9