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Refrigerated display case controller · BACnet points list

Johnson Controls PENN MR5 Series panel-mount refrigerated case controller (MR534, BACnet MS/TP) BACnet points list

Updated 12 November 2026

Short answer

The MR5 controls one refrigerated case: compressor, defrost, evaporator fan and alarm relays from up to three temperature sensors, with optional QREV/PSHC superheat sensor. Through the ADPT-MR5-RS485 adapter it joins a BACnet MS/TP or Verasys network and exposes 51 objects: case temperatures, relay states, QREV/PSHC readings, binary inputs, the setpoint and differential, defrost settings and defrost times, and leak/door/QREV alarms.

This page lists 51 BACnet objects for the Johnson Controls PENN MR5 Series panel-mount refrigerated case controller (MR534, BACnet MS/TP) — 15 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Johnson Controls’s own free documentation, linked below.

Manufacturer
Johnson Controls
Model
PENN MR5 Series panel-mount refrigerated case controller (MR534, BACnet MS/TP)
Equipment
Refrigerated display case controller
Equipment type
Other equipment
BACnet objects
51 (15 writable)
Transport
BACnet MS/TP
Firmware
Not stated
Default device instance
1
Also known as
MR5, MR534, MR534AFDV, MR534AFDN, PENN MR5, ADPT-MR5-RS485, LIT-12013019, JCI refrigeration case controller
Source document
MR5 Series Panel Mount Case Controller Technical Bulletin · LIT-12013019 · rev. 2019-08-13
Download CSV 51 rows Download EDE B.I.G.-EU JSON Manufacturer PDF ↗ Compare with your scan Download Easy BACnet Mobile App Google Play

Reference only, provided as-is: verify against Johnson Controls’s current documentation and the live device before use. Not official Johnson Controls information. Terms of use.

BMS integration notes: Johnson Controls PENN MR5 Series panel-mount refrigerated case controller (MR534, BACnet MS/TP)

Integration in brief

Fit the ADPT-MR5-RS485 adapter (included on MR534AFDV), set MS/TP connectivity to BACnet and a unique device address and device ID, then read case temperature, relay states and alarms. The BMS can adjust the setpoint and differential and defrost settings.

Minimum points to map

The short list most integrators start with — enough to run the unit from a BMS. Map more as the job needs.

ObjectNameWhyAccess
AV 10321SetPointCase temperature setpointWrite
AV 10329DifferentialControl differentialWrite
AI 10218Average Case TemperatureAverage case temperatureRead
AI 10005Sensor 1 : TemperatureSensor 1 (case) temperatureRead
BO 10446Compressor RelayCompressor relay stateRead
BO 10449Defrost RelayDefrost relay stateRead
BO 10452Fan RelayEvaporator fan relay stateRead
BI 10434Alarm Refrigeration LeakRefrigerant leak alarmRead
BI 10437Alarm Door OpenDoor open alarmRead
BO 10440Alarm RelayAlarm relay stateRead

Network setup

Watch out for

Johnson Controls PENN MR5 Series panel-mount refrigerated case controller (MR534, BACnet MS/TP) BACnet objects

Type: AI, AO, AV, BI, BO, BV, MI/MO/MV (multi-state) · Access: Read read-only, Write writable, Command writable with a priority array.

51 of 51 shown
Type
Multi-state
Access
Show
Johnson Controls PENN MR5 Series panel-mount refrigerated case controller (MR534, BACnet MS/TP) BACnet Points List
DescriptionStates
DEV1MR5 Case ControllerDevice objectRead
AImin10005Sensor 1 : TemperatureCase sensor 1, -45 to 140 °F; trended°FRead
AI10008Sensor 2 : TemperatureSensor 2, -45 to 140 °F°FRead
AI10011Sensor 3 : TemperatureSensor 3, -45 to 140 °F°FRead
AImin10218Average Case TemperatureAverage case temperature°FRead
AI10428Average Defrost TemperatureAverage defrost temperature°FRead
BOmin10446Compressor RelayCompressor relay stateRead0=Inactive, 1=Active
BOmin10449Defrost RelayDefrost relay stateRead0=Inactive, 1=Active
BOmin10452Fan RelayEvaporator fan relay stateRead0=Inactive, 1=Active
BOmin10440Alarm RelayAlarm relay stateRead0=Inactive, 1=Active
BO10443Auxiliary RelayAuxiliary relay stateRead0=Inactive, 1=Active
AI10197QREV/PSHC : SuperheatSuperheat from QREV/PSHC sensor, -40 to 212 °F°FRead
AI10200QREV/PSHC : TemperatureQREV/PSHC temperature, -40 to 212 °F°FRead
AI10212QREV/PSHC : PressureQREV/PSHC pressure, 100-3445 kPa (14.5-500 psi)kPaRead
AI10215QREV/PSHC : Current StateQREV/PSHC notification code 0000-9999Read
MV10290QREV/PSHC : RefrigerantRefrigerant type set in the QREV/PSHCRead1=R410A, 2=R404, 3=R407A, 4=R134A, 5=Reserved, 6=R22, 7=R407C, 8=R_407F, 9=R_417A, 10=R_422A, 11=R_422D, 12=R_427A, 13=R_438A, 14=R_448A, 15=R_449A, 16=R_450A, 17=R_507A, 18=R_513A, 19-21=Unknown
BI10020Binary Input 1 : StateBinary input 1 contactRead0=Open, 1=Close
BI10416Binary Input 2 : StateBinary input 2 contactRead0=Open, 1=Close
MV10461Binary Input 1 : ModeBinary input 1 functionRead1=None, 2=Refrigerant Leak, 3=Door Open
MV10455Binary Input 2 : ModeBinary input 2 functionRead1=None, 2=Refrigerant Leak, 3=Door Open
MV10389Auto DSTAutomatic daylight saving timeRead1=No, 2=Yes
MV10371Relay SelectionUse of the shared relayRead1=Fan, 2=Auxiliary
AVmin10321SetPointCase temperature setpoint, -40 to 122 °F°FWrite
AVmin10329DifferentialControl differential, 1-15 °F°FWrite
MV10272Case Sensor : Failure ModeCompressor action on case sensor failureWrite1=On, 2=Off, 3=Average
AV10327Anti-Short Cycle DelayCompressor anti-short-cycle delay, 0-12 minminWrite
MV10386Fan State : Compressor OFFEvaporator fan state while compressor is offWrite1=Off, 2=On
AV10330Max Defrost DurationMaximum defrost duration, 0-99 minminWrite
MV10380Defrost Schedule TypeDefrost schedule typeWrite1=Schedule, 2=Adaptive
AV10331Adaptive IntervalAdaptive defrost interval, 1-48 hhWrite
AV10322Adaptive Defrost DurationAdaptive defrost duration, 0-99 minminWrite
AV10323Max Time Between DefrostMaximum time between defrosts, 3-48 hhWrite
AV10324Min Time Between DefrostMinimum time between defrosts, 3-24 hhWrite
AV10325Blackout DurationDefrost blackout duration, 0-240 minminWrite
MV10412Reset HistoryReset historyWrite1=No, 2=Yes
MV10383Defrost ScheduleDefrost schedule modeWrite1=Automatic, 2=Manual
AV10326Defrost Scheduled Per DayNumber of defrosts per day, 0-8Write
Other10821Next Defrost timeTime Value object (TV)Read00:00:00 to 23:59:59 (Hr:Min:Sec)
Other10820Blackout Start TimeTime Value object (TV)Read00:00:00 to 23:59:59 (Hr:Min:Sec)
Other10812First DefrostTime Value object (TV): defrost time 1Read00:00:00 to 23:59:59 (Hr:Min:Sec)
Other10813Second DefrostTime Value object (TV): defrost time 2Read00:00:00 to 23:59:59 (Hr:Min:Sec)
Other10814Third DefrostTime Value object (TV): defrost time 3Read00:00:00 to 23:59:59 (Hr:Min:Sec)
Other10815Fourth DefrostTime Value object (TV): defrost time 4Read00:00:00 to 23:59:59 (Hr:Min:Sec)
Other10816Fifth DefrostTime Value object (TV): defrost time 5Read00:00:00 to 23:59:59 (Hr:Min:Sec)
Other10817Sixth DefrostTime Value object (TV): defrost time 6Read00:00:00 to 23:59:59 (Hr:Min:Sec)
Other10818Seventh DefrostTime Value object (TV): defrost time 7Read00:00:00 to 23:59:59 (Hr:Min:Sec)
Other10819Eighth DefrostTime Value object (TV): defrost time 8Read00:00:00 to 23:59:59 (Hr:Min:Sec)
BI10368QREV/PSHC Alarm StatusQREV/PSHC alarmRead0=Normal, 1=Alarm
BI10365QREV/PSHC Communication LossLost communication with QREV/PSHCRead0=Normal, 1=Alarm
BImin10434Alarm Refrigeration LeakRefrigerant leak alarmRead0=Normal, 1=Alarm
BImin10437Alarm Door OpenDoor open alarmRead0=Normal, 1=Alarm
Object ID lookup: Johnson Controls PENN MR5 Case Controller point IDs by name

Integration notes

Check it against the live device. A points list tells you what the controller can expose; the unit in front of you may differ by firmware or installed options. This list is provided as-is for reference only and may contain mistakes — confirming it before you write, map or commission anything is up to you (terms). Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the PENN MR5 Series panel-mount refrigerated case controller (MR534, BACnet MS/TP) and exports what it actually has to Excel — free. New to BACnet? Start with what a BACnet points list is and what the object types mean.

Questions about the Johnson Controls PENN MR5 Series panel-mount refrigerated case controller (MR534, BACnet MS/TP)

How many BACnet points does the Johnson Controls PENN MR5 Series panel-mount refrigerated case controller (MR534, BACnet MS/TP) have?

This list has 51 BACnet objects: 9 analog inputs, 10 analog values, 6 binary inputs, 5 binary outputs, 1 device, 10 multi-state values, 10 others. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Johnson Controls PENN MR5 Series panel-mount refrigerated case controller (MR534, BACnet MS/TP) BACnet points are writable?

15 of the 51 objects accept a write. Points marked Command have a priority array: a write holds until it is released, so release it back to automatic when you are done.

Where is the official Johnson Controls PENN MR5 Series panel-mount refrigerated case controller (MR534, BACnet MS/TP) BACnet documentation?

The source is MR5 Series Panel Mount Case Controller Technical Bulletin (LIT-12013019), revision 2019-08-13, published free by Johnson Controls at https://docs.johnsoncontrols.com/bas/api/khub/documents/PFZ9MbhezH_qtq06OykSww/content.

What are the minimum BACnet points to integrate the Johnson Controls PENN MR5 Series panel-mount refrigerated case controller (MR534, BACnet MS/TP)?

Start with AV 10321 SetPoint (Case temperature setpoint); AV 10329 Differential (Control differential); AI 10218 Average Case Temperature (Average case temperature); AI 10005 Sensor 1 : Temperature (Sensor 1 (case) temperature); BO 10446 Compressor Relay (Compressor relay state); BO 10449 Defrost Relay (Defrost relay state); BO 10452 Fan Relay (Evaporator fan relay state); BI 10434 Alarm Refrigeration Leak (Refrigerant leak alarm); BI 10437 Alarm Door Open (Door open alarm); BO 10440 Alarm Relay (Alarm relay state).

How do I check these points on the real PENN MR5 Series panel-mount refrigerated case controller (MR534, BACnet MS/TP)?

Scan the network with a BACnet IP browser such as Easy BACnet, open the device and compare its object list with this table. Anything missing is usually an option that isn't installed or a point that is disabled in the controller's configuration.

More Johnson Controls BACnet points lists

Source: MR5 Series Panel Mount Case Controller Technical Bulletin · LIT-12013019 · rev. 2019-08-13. Object names, instances and units are reproduced as published; descriptions are our own.