PGC, Inc. Appendix B; SmartPad version 0.503 Steady State & Programmable
November 2005 B-30
V. COMMANDS: REQUEST COMMANDS:
Command Function
?OO<CR> Returns current run state (On/Off request)
?CM<CR> Returns current Control Mode (Rh Cascade, Two Temp, etc.)
?SM<CR> Returns current Set point entry Mode
?AP<CR> Returns the current Air Process variable (measured air temperature)
?AS<CR> Returns the current Air Set point
?AH<CR> Returns Air Half proportional band
?AR<CR> Returns Air Reset rate
?AD<CR> Returns Air Derivative constant
?AO<CR> Returns the percentage of Air heat Output
?XP<CR> Returns the current auXiliary Process variable
?XS<CR> Returns the current auXiliary Set point
?XH<CR> Returns auXiliary Half proportional band
?XR<CR> Returns auXiliary Reset rate
?XD<CR> Returns auXiliary Derivative constant
?XO<CR> Returns the percentage of auXiliary heat Output
?WP<CR> Returns the current Water Process variable (water temperature)
?WS<CR> Returns the current Water Set point
?WH<CR> Returns Water Half proportional band
?WR<CR> Returns Water Reset rate
?WD<CR> Returns Water Derivative constant
?WO<CR> Returns the percentage of Water heat Output
The following commands are available in a Cascade mode only.
?WL<CR> Returns Water Low limit
?WU<CR> Returns Water Upper limit
?RP<CR> Returns the current Rh Process variable (measured rh)
?RS<CR> Returns the current Rh Set point
?RH<CR> Returns Rh Half proportional band
?RR<CR> Returns Rh Reset rate (maximum rate of change in water set point;
degrees C per minute)
?RD<CR> Returns Rh Derivative constant
The following commands are available in Dryer mode only. (If machine is equipped with dryer)
?RO<CR> Returns Rh dryer Output percentage
The following commands are available in Slow Damper mode only.
?DH<CR> Returns Damper Half proportional band
?DR<CR> Returns Damper Reset rate
?DO<CR> Returns Damper Output percentage
The following commands are available in programmable modes only.
?PR<SP>xx<CR> response:
xx,Saa.aa,Sww.ww,hh:mm:ss
Returns the PRogram data for the segment (xx) requested. [aa.aa is air set
point, ww.ww is water or Rh set point (Channel 2), and hh:mm:ss is the time
entered in that segment]
?LUP<CR> response: xx,yy,zz
Returns the loop (LUP) parameters. [xx is start segment, yy is loop from
segment, and zz is loop to segment]
?SY<CR> response: run condition (run or halt), segment number, segment time
Returns the SYstem status.
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