RXB PLUS ROTARY SCREW COMPRESSOR UNITSS70-101 IOM
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OPERATION
COMPRESSOR DISPLAY SCREENS COMMAND: #01DXNN
# Start command sequence.
01 Compressor ID code.
D Compressor control command.
X = O Operating display (Page 1 & 2).
X = S Setpoints display (Page 1 & 2).
X = X Setpoints display (Page 3 & 4).
X = R Shutdown record display (Page 1 & 2).
X = F Freeze display (Page 1 & 2).
X = C Autocycle display.
X = P Security display.
X = B Setback display.
X = + Analog offset display.
X = ANN Annunciator display page “NN”.
NOTE: “NN” parameter is used to access the
annunciator display pages.
If the command was #01DA10, then the microprocessor
would dump the annunciator display page number ten.
RETURN FULL LOAD AMPS COMMAND: #01A
# Start command sequence.
01 Compressor ID code.
A Return full load amps command.
If the command was #01A, then the microprocessor
would dump the full-load amps value.
RETURNED ANSWER:
XXX = 3 characters followed by a carriage return, line feed.
RETURN TEMPERATURES COMMAND: #01TX
# Start command sequence.
01 Compressor ID code.
T Return temperature command.
X = S Return suction temperature.
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 microprocessor
would dump the suction temperature.
RETURNED ANSWER:
XXXX = 4 characters followed by a carriage
return, line feed if suction temperature is
requested. The first character is “+” or “-”
followed by 3 digits.
XXX = 3 characters followed by a carriage
return, line feed for all other temperatures.
If using the “A” command, then the returned
data would be:
XXXXXXXXXXXXX = 13 characters followed by a
carriage return, line feed.
The first 4 characters are
Suction Temp, the next 3 are
Discharge Temp, the next 3 are
Oil, and the last 3 are Separator.
CHANGE SETPOINTS COMMAND: #01C
# Start command sequence.
01 Compressor ID code.
C Change setpoint command.
xxx New setpoint.
xx New setpoint.
y g or h for gauge or inches.
The following is the complete list of the
setpoints that may be changed while in the
change setpoints command:
01xxxy Capacity Control Setpoint.
02xxxy Change Low Pressure Cutout Setpoint.
03xxxy Change Low Pressure Alarm Setpoint.
04xxx Change High Pressure Cutout Setpoint.
05xxx Change High Pressure Alarm Setpoint.
06xxx Change MLC Stop Load Setpoint.
07xxx Change MLC Force Unload Setpoint.
08xx Change Recycle Delay Setpoint.
09xxx Change CTF Setpoint.
01 Compressor ID code.
RETURNED ANSWER:
Axxxx The new setpoint which was sent,
followed by a carriage return, line feed.
If the command was sent #01C01300g01, the
capacity control setpoint would be changed to
30.0g and the returned answer is A300g
followed by a carriage return, line feed.
If the command sent was #01C0711001, the MLC
force unload setpoint would be changed to 110%
and the returned answer is A110 followed by
a carriage return, line feed.
If the command sent was #01C0520002, the
returned answer is “BAD” followed by the ID
number and a carriage return, line feed.
RETURN PRESSURES COMMAND: #01PX
# Start command sequence.
01 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 = F Return filter differential pressure.
X = A Return all pressures.
If the command was #01PS, then the microprocessor
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.
g or h : must be lower case - exception to “All commands
must be caps” statement at beginning of section.
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