Applications Guide Tracer Graphical Programming - Trane

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® Summary-question answers PROGRAM MP_AlarmResetReset DEFINT Counter, i Counter = Local.{Saved Value}[1] IF ({AHU Alarm Reset}.{Present Value} = 1) THEN // Increment counter Counter = Counter + 1 END IF IF (Counter > 5) THEN FOR i = 5 TO 16 // Release control at priority levels 5 to 16 CONTROL ({AHU Alarm Reset}, {Present Value}, 0, i, RELEASE) NEXT // Reset counter Counter = 0 END IF Local.{Saved Value}[1] = Counter END 248 CNT-APG001-EN
® Index A Add block, 74–75, 139 adding alarm indications, 36 blocks, 17 comments, 21 deadbands, 32 degree symbol, 17 input ports, 58 program pages, 65 variables, 34 wireless connections, 66–68 alarm indications, 36 alarm reset, automatic, 63 aligning blocks, 22 alignment toolbar, 6 ambient wet-bulb temperature, 87 And block, 73, 184, 206 approach temperature, 87 arranging blocks, 21 auto-reset alarms, 131, 178 B Between block, 168 block properties, editing, 18 blocks adding input ports, 58 aligning, 22 connecting, 24, 66 deleting, 31 moving, 21 overview, 5 selecting, 21 building programs, 26 C calculating ambient wet-bulb temperature, 87 approach temperature, 87 change in water temperature, 86 effective space setpoints, 135–140, 181–183 enthalpy, 237 offset values, 136 wet-bulb temperature, 87 calculation blocks, 87 calculation toolbar, 7 cascade control, 165–166 closing programs, 27 Comm5 network, 219 Comment block, 21 communications with BAS, 218–224 compare toolbar, 7 comparing values, 22 compiling errors, 39 programs, 26 condenser water pump, 94–101 connecting blocks, 24 Deadband blocks, 36 PID blocks, 93 Switch blocks, 39 Wireless blocks, 66–67 Constant block, 19–20 control source, variables, 34 controlling condenser water pump, 94–101 cooling tower fan, 71–76, 88–94 cooling valve, 123–124, 169–171, 206 duct static pressure, 116–117 equipment, 23 exhaust fan, 117–118, 156 heating valve, 124–125, 171–172, 209 humidifier, 172–173 outdoor air damper, 120–122, 160–162 sump heater, 66–71 supply fan, 114–117, 155–156 two-speed fan, 47 variable-speed fan, 79 cooling tower fan, 71–76, 88–94 cooling valve, 123–124, 169–171, 206 creating wireless connection blocks, 67 custom displays, 36 D DAC see Discharge Air Controller Profile dashed wire, 24 Deadband block, 32–34, 36, 69, 72, 88, 117, 121, 123, 141, 172 debugging a program, 43 De-Enumerator block, 115, 137 degree symbol, 17 CNT-APG001-EN 249
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Applications Guide Tracer Graphical
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CNT-APG001-EN ®
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® Contents Arrangingblocks........
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® Contents Chapter 5 Cooling tower
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® Contents Summary-question answer
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Applications Guide Tracer Graphical Programming - Trane

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