RXF PLUS MICROPROCESSOR CONTROL PANEL S70-401 IOM
Page 17
The following is a detailed description of each command:
RETURN COMPRESSOR STATUS INFORMATION: #IDI
# Start of command sequence.
ID Compressor ID code.
I Return Status information command.
RETURNED ANSWER, ie: 090RRRN340
Character Description
Position of returned data
1,2,3 Capacity control position.
4 Remote, Auto, Manual (Cap control)
5 Delay-recycle, Running, Off.
6 Rem, Man, Off, Auto (Compressor mode)
7 Cutout, Alarm, Normal.
8,9,10 Suction in PSIA.
(Carriage return, line feed.)
COMPRESSOR STOP COMMAND: #IDSID
# Start command sequence.
ID Compressor ID code.
S Stop compressor command.
ID ID code repeated for verification
NOTE: The compressor must be in the remote
start mode for this command to be executed.
RETURNED ANSWER: A01
Character Description
Position of returned data
1 Acknowledge of command sent.
2,3 ID code of compressor.
(Carriage return, line feed.)
COMPRESSOR SLIDE VALVE #IDVLXX
CONTROL COMMANDS: #IDVUXX
#IDVS
#IDVP
# Start command sequence.
ID Compressor ID code.
V Compressor control command.
L Load Slide valve command.
U Unload slide valve command.
XX = 00 Turns selected output off.
XX = 01 to 15 Turns selected output on
for XX seconds.
XX = 99 Turns selected output on.
S Return slide valve position value.
P Return slide stop position value.
If the command was #01VL00, then the load
slide valve output on compressor #1 would be
turned off. If the command was #01VL05, then
the load slide valve output on compressor #1
would be turned on for 5 seconds, and would
then automatically turn off. NOTE: the slide
valve must be in the remote mode for this
command to be executed.
RETURNED ANSWER (for L or U commands): AID
Character Description
Position of returned data
1 Acknowledge of command sent.
2,3 ID code of compressor.
(Carriage return, line feed.)
RETURNED ANSWER (for S command), ie: 090
1,2,3 Slide valve position.
RETURNED ANSWER (for P command), ie: 2.2
(Carriage return, line feed)
RETURN PRESSURES COMMAND: #IDPX
# Start command sequence.
ID Compressor ID code.
P Return pressures command.
X = S Return suction pressure (PSIA).
X = D Return discharge pressure (g/hg).
X = O Return oil pressure (g).
X = A Return all pressures.
If the command was #01PS, then the micro-
processor would dump the suction pressure.
RETURNED ANSWER:
XXX = 3 characters followed by a carriage
return, line feed.
If using the A command, then the returned
data would be:
XXXXXXXXXXXX = 12 characters followed by a
carriage return, line feed.
RETURN TEMPERATURES COMMAND: #IDTX
# Start command sequence.
ID Compressor ID code.
T Return temperature command.
X = D Return discharge temperature.
X = O Return oil temperature.
X = P Return separator temperature.
X = A Return all temperatures as a string
of data.
If the command was #01TS, then the micro-
processor would dump the suction temperature.
RETURNED ANSWER:
XXXX = 4 characters followed by a carriage
return, line feed for suction.
XXX = 3 characters followed by a carriage
return, line feed for discharge, oil,
and separator.
If using the A command, then the returned
data would be:
XXXXXXXXXXXXX = 13 characters followed by
carriage return, line feed.
CHANGE SLIDE VALVE MODE #IDMVR
# Start command sequence
ID Compressor ID Code
MC Change slide valve mode
X = A Auto mode.
X = R Remote mode.
If the command #01MVR was sent, the slide valve
mode would change to Remote and the returned
answer would be A01 followed by carriage return,
line feed.
COMPRESSOR START COMMAND: #IDRID
# Start command sequence.
ID Compressor ID code.
R Start compressor command.
ID ID code repeated for verification
NOTE: The compressor must be in the remote
start mode for this command to be executed.
Returned answer: A01
Character Description
Position of returned data
1 Acknowledge of command sent.
2,3 ID code of compressor.
(Carriage return, line feed.)
OPERATION
To Next Page
Loading...
