Johnson Controls QUANTUM LX, Setup

Page: 22 / 140

QUANTUM™ LX COMPRESSOR CONTROL PANEL
COMMUNICATIONS SETUP
090.020-CS (JUNE 11)
Page 22
CHANGE SLIDE VALVE MODE
COMMAND:
#IDMVmID
Command structure:
Command Description
# Start command sequence
ID Compressor (ID) code (01, 14, etc.)
MV (M)ode of Compressor Slide (V)alve
m
= O (O) ff
= A (A) uto
= R (R) emote
ID (ID) code repeated for veri fi cation
Returned Answer:
Character
Position
Description
1 (A)cknowledge
2, 3 (ID) code veri fi ed
(Carriage return, line feed)
RETURN PRESSURES COMMAND: #IDPX
Command structure:
Command Description
# Start command sequence
ID Compressor (ID) code (01, 14, etc.)
P Return (P) ressures command
X
= S Return (S) uction Pressure (PSIA)
= D Return (D) ischarge Pressure (g/hg)
= O Return (O) il Pressure (g)
= F Return (F) ilter differential Pressure
= A
Return (A) ll pressures as a string of
data
Command Examples: (Compressor #01 is used here)
#01PS Returns the Suction Pressure
#01PD Returns the Discharge Pressure
#01PO Returns the Oil Pressure
#01PF Returns the Filter Differential Pressure
#01PA Returns All pressures
Note: Don’t send CR or LF
Returned Answer:
If using the S command the returned pressure will be:
XXXX = 4 characters followed by a CR, LF.
If using the D, O or F commands, the returned pressure
will be: XXX = 3 characters followed by a CR, LF.
If using the A command, the returned data would be:
XXXXXXXXXXXX = 12 characters followed by a CR, LF.
RETURN TEMPERATURES COMMAND: #IDTX
Command structure:
Command Description
# Start command sequence
ID Compressor (ID) code (01, 14, etc.)
T Return (T) emperature command
X
= S Return (S) uction Temperature
= D Return (D) ischarge Temperature
= O Return (O) il Temperature
= P Return Se (P) arator Temperature
= A Return (A) ll temps as a string of data
Command Examples: (Compressor #01 is used here)
#01TS Returns the Suction Temperature
#01TD Returns the Discharge Temperature
#01TO Returns the Oil Temperature
#01TP Returns the Separator Temperature
#01TA Returns All Temperatures
Note: Don’t send CR or LF
Returned Answer:
If using the S command the returned temp. will be:
+/-XXX = The fi rst character will be a + or -, followed
by 3 characters and ending with a CR, LF.
If using the D, O or P commands, the returned temp.
will be:
XXX = 3 characters followed by a CR, LF.
If using the A command, the returned data would be:
XXXXXXXXXXXX = 12 characters followed by a CR, LF.