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QUANTUM™ LX COMPRESSOR CONTROL PANEL
COMMUNICATIONS SETUP
090.020-CS (JUNE 11)
Page 24
QUERY SETPOINTS DATA:
#IDQ3
Command structure:
Command
Description
#
Start command sequence
ID
Compressor
(ID)
code (01, 14, etc.)
Q3
(Q)
uery Setpoints command
Returned Answer:
Character
Position
#
Byte(s)
Setpoint (Name/Comment)
1, 2, 3, 4
4
Spaces
5, 6, 7, 8
4
Future
9
1
Setback
active
1 = Yes
0 = No
10, 11, 12, 13
4
Auto. Cycling compressor Start
14, 15, 16, 17
4
Auto. Cycling compressor Stop
18, 19
2
Future
20, 21
2
Future
22, 23
2
Autocycle minimum Slide Valve
24
1
Autocycle
active
1 = Yes
0 = No
25, 26, 27, 28
4
Future
29, 30, 31, 32
4
Future
33, 34
2
Future
35, 36
2
Future
37, 38
2
Future
39
1
Future
40
1
ID (tenths position byte)
41
1
ID (ones position byte)
42
1
ID Checksum of data (positons
1-47)
43
1
CR code 13
44
1
LF code 10
45
1
0 null terminator char.
CHANGE SETPOINTS COMMAND:
#IDC
Command structure:
Command
Description
#
Start command sequence
ID
Compressor
(ID)
code (01, 14, etc.)
C
(C)
hange setpoint command
xx
Which setpoint
xxx
New value
y
g or h for gauge or inches
The following is the complete list of setpoints that may
be changed while in the change setpoints command:
01xxxy
Capacity Control Setpoint
(y deleted for KpaA & BarA ver.)
02xxxy
Change Low Suction Shutdown Set-
point
(y deleted for KpaA & BarA ver.)
03xxxy
Capacity Low Suction Alarm Setpoint
(y deleted for KpaA & BarA ver.)
04xxx
Change High Press. Shutdown Setpoint
(xxxx is used for KpaA & BarA ver.)
05xxx
Change High Press. Alarm Setpoint
(xxxx is used for KpaA & BarA ver.)
06xxx
Change MLC Stop Load Setpoint
07xxx
Change MLC Force Unload Setpoint
08xx
Change Recycle Delay Setpoint
09xxx
Change CTF Setpoint
10xx
Proportional Band
11xx
Dead Band
12xx
Cycle Time
01
Compressor ID code
Returned Answer:
Axxxx
The new setpoint which was sent
followed by a carriage return, line
feed. BAD followed by the ID, CR, LF if
unsuccessful.
Returned Example 1:
If #01C01300g01 is sent:
The capacity control setpoint would be changed to
30.0g and the returned answer is A300g followed by a
CR, LF.
Returned Example 2:
If #01C0711001 is sent:
The MLC force unload setpoint would be changed to
110% and the returned answer is A110 followed by a
CR, LF.
Returned Example 3:
If #01C0520002 is sent:
The returned answer is BAD followed by the ID num-
ber and a CR, LF.
Summary of Contents for QUANTUM LX
Page 12: ...QUANTUM LX COMPRESSOR CONTROL PANEL COMMUNICATIONS SETUP 090 020 CS JUNE 11 Page 12 ...
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