Data Logging; How It Works - Danfoss MCX-RTU User Manual

User Guide | MCX-RTU Rooftop

Data Logging

© Danfoss | ADAP-KOOL® | 2018.11

How it works

Logs the list of points below using the logging interval.). The parameter is located at Parameters-
>General. Set y37(Logging Interval) to the frequency of logging and y36(Enable Logging). to
Yes to start the logging.
Data Log Points
1. Zone 1
2. Zone 2
3. Zone 3
4. ZoneTemp
5. ZoneRH
6. ZoneDewpoint
7. SupplyAir
8. ReturnAir
9. MixedAir
10. OutdoorAir
11. OutdoorRH
12. OutdoorDewpoint
13. GlobalSchedules
14. AlarmStatus
15. Mode
16. EffSetp
17. FanOut
18. FanFail
19. PhaseLoss
20. ShutdownFlag
21. CoolHeatModeGlobal
22. NightSetback
23. SystemOnOff
24. CoolStatus1
25. CoolStatus2
26. CoolStatus3
27. CoolStatus4
28. AuxHeatStatus1
29. AuxHeatStatus2
30. FanStatusAO
31. DamperStatusAO
32. GlobalOutdoorTemp
The Data Log file may be converted to an Excel file by using the DecodeLog converter program.
The program can be requested from Danfoss Tech Support.
Zone 1 Sensor
Zone 2 Sensor(if used)
Zone 3 Sensor(if used)
Zone Temp used for control
ZoneRH(may be local or global sensor)
Calculated Zone Dewpoint
Supply Air Sensor
Return Air Sensor
Return Air Sensor
Outdoor Air Sensor(may be local or global sensor)
Outdoor RH Sensor(may be local or global sensor)
Calculated Outdoor Dewpoint
Bit map of the first 16 refrigeration schedules
Alarm Status
MCX-RTU Mode
Calculated Setpoint(heat or cool setpoint depending on
mode)
Fan Control Output
Fan Proof not on when FanOut is ON.
On means PhaseLoss is good
One of the shutdown DI's is active
What is the control mode(0 = Cool, 1 = Heat)
Night Setback is active
Master Switch Status
Cool 1 Status
Cool 2 Status
Cool 3 Status
Cool 4 Status
Aux Heat Status 1
Aux Heat Status 2
Fan AO Status – 0-100%
Damper AO Status – 0-100%
Value of Global Outdoor Temp
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