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Level Control LC 2X2 (CIM 300 / CIM 500)

Submersible pump level controller · BACnet points list

Grundfos Level Control LC 2X2 (CIM 300 / CIM 500) BACnet points list

Updated 6 November 2026

Short answer

The LC 2X2 controls up to two submersible pumps from a level sensor or float switches. With a CIM 300 or CIM 500 module it exposes a fixed object list: pit level, energy, flow and water-quality readings, daily run-time counters, per-pump status inputs, an overall system status, writable level setpoints in centimetres and a multistate Auto/Forced start/Forced stop command per pump.

This page lists 77 BACnet objects for the Grundfos Level Control LC 2X2 (CIM 300 / CIM 500) — 11 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Grundfos’s own free documentation, linked below.

Manufacturer: Grundfos
Model: Level Control LC 2X2 (CIM 300 / CIM 500)
Equipment: Submersible pump level controller
Equipment type: VFDs & pumps
BACnet objects: 77 (11 writable)
Transport: BACnet MS/TP, BACnet IP
Firmware: CIM 300 V04.20.00 / CIM 500 V06.16 (as stated in the PICS)
Also known as: LC 2X2, LC2X2, Grundfos LC 2X2, Level Control LC 2X2, CIM 300, CIM 500, CIU 300, CIU 500
Source document: BACnet PICS CIM 300 - Supplement (pumps, booster systems, Level Control LC 2X1 and LC 2X2) · 97750025 · rev. 05.2021

Download CSV 77 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 Grundfos’s current documentation and the live device before use. Not official Grundfos information. Terms of use.

BMS integration notes: Grundfos Level Control LC 2X2 (CIM 300 / CIM 500)

Integration in brief

Read the operating state (MI 0), pit level (AI 6) and the per-pump running and alarm inputs, and use MO 0/MO 1 to put each pump in Auto, Forced start or Forced stop. Alarms are reset with BO 0. The start, stop, high and dry-running levels can be written in centimetres through AO 0-4.

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.

Object	Name	Why	Access
MO 0	Control Pump 1	Pump 1: 1 = Auto, 2 = Forced start, 3 = Forced stop	Write
MO 1	Control Pump 2	Pump 2: 1 = Auto, 2 = Forced start, 3 = Forced stop	Write
BO 0	Reset alarms	Alarm reset (1 = reset)	Write
MI 0	System Operating Mode	Operating state: standby, pumping, alarm states...	Read
AI 6	Pit water level	Pit level in cm	Read
BI 8	Pump1Running	Pump 1 running status	Read
BI 9	Pump2Running	Pump 2 running status	Read
BI 12	Pump1Alarm	Pump 1 alarm	Read
BI 13	Pump2Alarm	Pump 2 alarm	Read
AI 0	Fault code	Active Grundfos fault code	Read

Network setup

CIM 300 is a BACnet MS/TP master at 9600, 19200, 38400 or 76800 baud; CIM 500 uses BACnet IP (Annex J).
AV 0 lets the BMS set a custom device instance (0-0x3FFFFE).
The CIM module fits inside the controller or in an external CIU box; the object list is the same either way.
The PICS states that segmentation is not supported.

Watch out for

The level setpoints AO 0-4 are stored settings; write them only when they change, not cyclically.
Pump 2 has a start-level object (AO 4) but no stop-level object in this table.
AI 0/AI 1 are Grundfos fault and warning codes; decode them with the LC manual.
BI 35 Control Status shows whether the controller is in auto or manual control.

Grundfos Level Control LC 2X2 (CIM 300 / CIM 500) 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.

77 of 77 shown

Type

Access

Units

Show

Grundfos Level Control LC 2X2 (CIM 300 / CIM 500) BACnet Points List
			Description			States
AV	0	Custom device object instance number	Custom device instance number (0-0x3FFFFE)		Write
AV	1	Product time and date	Controller clock, UNIX time	s	Write
AV	2	CIMSoftwareVersion	CIM module software version (decimal)		Read
BOmin	0	Reset alarms	Resets alarms (1 = reset)		Write	0=No resetting, 1=Resetting alarms
BO	1	Reset EventLog	Resets the event log (1 = reset)		Write	0=No resetting, 1=Resetting alarms
MOmin	0	Control Pump 1	Pump 1 command: auto, forced start or forced stop		Write	1=Auto, 2=Forced Start, 3=Forced Stop
MOmin	1	Control Pump 2	Pump 2 command: auto, forced start or forced stop		Write	1=Auto, 2=Forced Start, 3=Forced Stop
AO	0	SetHighLevel	Set high level	cm	Write
AO	1	SetDryRunningLevel	Set dry running level	cm	Write
AO	2	SetStartLevelPump1	Set start level for pump 1	cm	Write
AO	3	SetStopLevelPump1	Set stop level for pump 1	cm	Write
AO	4	SetStartLevelPump2	Set start level for pump 2	cm	Write
MImin	0	System Operating Mode	Present operating state of the level controller		Read	0=Standby, 1=Start-up delay, 2=Pumping, 3=Stop delay, 4=Pumping max, 5=Stopped, 6=Foam draining, 7=Daily emptying, 8=Pump anti-seizing, 9=Manual control, 10=Interlock control, 11=Mains failure, 12=Level sensor error, 13=All pumps in alarm, 14=All pumps out of operation, 15=Service mode, alarms suppressed
MI	1	CIM status	CIM module status		Read	1=OK, 2=EEPROM fault, 3=Memory fault, 4=Unknown
MI	2	System status	Overall system status		Read	1=System OK, 2=Warnings present, 3=Alarms Present, 4=Unknown
MI	3	System control sensor type	Sensor type controlling the system		Read	1=Analog level sensor, 2=Float switch, 3=Unknown
AImin	0	Fault code	Grundfos fault code		Read
AI	1	Warning code	Grundfos warning code		Read
AI	2	HighLevel	High level	cm	Read
AI	3	StartLevelPump1	Start level for pump 1	cm	Read
AI	4	StopLevelPump1	Stop level for pump 1	cm	Read
AI	5	StartLevelPump2	Start level for pump 2	cm	Read
AImin	6	Pit water level	Pit water level	cm	Read
AI	7	Pit power consumption	Pit power consumption	W	Read
AI	8	Pit energy consumption	Pit energy consumption	kWh	Read
AI	9	Pit running time	Pit running time	min	Read
AI	10	Analog Input 1 (AI1)	Analog Input 1	%	Read
AI	11	Analog Input 2 (AI2)	Analog Input 2	%	Read
AI	12	Analog input 3 (AI3)	Analog Input 3	%	Read
AI	13	Pump1 time to service	Pump 1 time to service	min	Read
AI	14	Pump2 time to service	Pump 2 time to service	min	Read
AI	15	Pump1 start counter	Pump 1 start counter		Read
AI	16	Pump2 start counter	Pump 2 start counter		Read
AI	17	Pump1 current	Pump 1 current	A	Read
AI	18	Pump2 current	Pump 2 current	A	Read
AI	19	Pump1 operating time	Pump 1 overall operating time	min	Read
AI	20	Pump2 operating time	Pump 2 overall operating time	min	Read
AI	21	UserAnalogInput1	User-defined measurement, analog input 1	%	Read
AI	22	UserAnalogInput2	User-defined measurement, analog input 2	%	Read
AI	23	UserAnalogInput3	User-defined measurement, analog input 3	%	Read
AI	24	UserAnalogInput4	User-defined measurement, analog input 4	%	Read
AI	25	UserAnalogInput5	User-defined measurement, analog input 5	%	Read
AI	26	Latest operating time pump1	Pump 1 latest running time	min	Read
AI	27	Latest operating time pump2	Pump 2 latest running time	min	Read
AI	28	Energy consumption pump1	Pump 1 energy consumption	kWh	Read
AI	29	Energy consumption pump2	Pump 2 energy consumption	kWh	Read
AI	30	System Energy today	System energy used today, 0.1 kWh resolution	kWh	Read
AI	31	PulseFlowMeter	Flow from the pulse flow meter	l/s	Read
AI	32	Turbidity	Turbidity, 0.1 NTU resolution	NTU	Read
AI	33	PhMeasure	pH value, 0.1 pH resolution	pH	Read
AI	34	Conductivity	Conductivity, 1 S/m resolution	S/m	Read
AI	35	Pump1OprTimeToday	Pump 1 run time today	min	Read
AI	36	Pump2OprTimeToday	Pump 2 run time today	min	Read
AI	37	Pump1StartCounterToday	Pump 1 starts today (unit printed as min)	min	Read
AI	38	Pump2StartCounterToday	Pump 2 starts today (unit printed as min)	min	Read
AI	39	Alarms 1-5 and warnings 1-5	Bit-coded: bits 0-4 warnings 1-5, bits 8-12 alarms 1-5		Read
AI	40	Sensor present status	Bit-coded sensor-present flags (bits 0-12)		Read
BI	0	AcknowledgeAlarm	Alarm acknowledged		Read	0=Not acknowledged, 1=Acknowledged
BI	1	FloatSwitch1Status	Float switch 1 state		Read	0=Off (Float switch down), 1=On (Float switch up)
BI	2	FloatSwitch2Status	Float switch 2 state		Read	0=Off (Float switch down), 1=On (Float switch up)
BI	3	FloatSwitch3Status	Float switch 3 state		Read	0=Off (Float switch down), 1=On (Float switch up)
BI	4	FloatSwitch4Status	Float switch 4 state		Read	0=Off (Float switch down), 1=On (Float switch up)
BI	5	FloatSwitch5Status	Float switch 5 state		Read	0=Off (Float switch down), 1=On (Float switch up)
BI	6	Pump1Present	Pump 1 fitted/detected		Read	0=Not present, 1=Present
BI	7	Pump2Present	Pump 2 fitted/detected		Read	0=Not present, 1=Present
BImin	8	Pump1Running	Pump 1 running		Read	0=Not running, 1=Running
BImin	9	Pump2Running	Pump 2 running		Read	0=Not running, 1=Running
BI	10	Pump1CommFault	Pump 1 communication fault		Read	0=No communication fault, 1=Pump or auxiliary device communication fault
BI	11	Pump2CommFault	Pump 2 communication fault		Read	0=No communication fault, 1=Pump or auxiliary device communication fault
BImin	12	Pump1Alarm	Pump 1 alarm		Read	0=No alarm, 1=Alarm
BImin	13	Pump2Alarm	Pump 2 alarm		Read	0=No alarm, 1=Alarm
BI	14	Pump1Warning	Pump 1 warning		Read	0=No warning, 1=Warning
BI	15	Pump2Warning	Pump 2 warning		Read	0=No warning, 1=Warning
BI	16	Pump1Disabled	Pump 1 out of operation		Read	0=Enabled, 1=Disabled (Out of operation)
BI	17	Pump2Disabled	Pump 2 out of operation		Read	0=Enabled, 1=Disabled (Out of operation)
BI	34	Acknowledge ResetEventLogAlarm	Event log reset acknowledged		Read	0=Not Acknowledged, 1=Acknowledged
BI	35	Control Status	Auto or manual control		Read	0=Auto control, 1=Manual control

Object ID lookup: Grundfos Level Control LC 2X2 point IDs by name

AV0Custom device object instance number
AV1Product time and date
AV2CIMSoftwareVersion
BO0Reset alarms
BO1Reset EventLog
MO0Control Pump 1
MO1Control Pump 2
AO0SetHighLevel
AO1SetDryRunningLevel
AO2SetStartLevelPump1
AO3SetStopLevelPump1
AO4SetStartLevelPump2
MI0System Operating Mode
MI1CIM status
MI2System status
MI3System control sensor type
AI0Fault code
AI1Warning code
AI2HighLevel
AI3StartLevelPump1
AI4StopLevelPump1
AI5StartLevelPump2
AI6Pit water level
AI7Pit power consumption
AI8Pit energy consumption
AI9Pit running time
AI10Analog Input 1 (AI1)
AI11Analog Input 2 (AI2)
AI12Analog input 3 (AI3)
AI13Pump1 time to service
AI14Pump2 time to service
AI15Pump1 start counter
AI16Pump2 start counter
AI17Pump1 current
AI18Pump2 current
AI19Pump1 operating time
AI20Pump2 operating time
AI21UserAnalogInput1
AI22UserAnalogInput2
AI23UserAnalogInput3
AI24UserAnalogInput4
AI25UserAnalogInput5
AI26Latest operating time pump1
AI27Latest operating time pump2
AI28Energy consumption pump1
AI29Energy consumption pump2
AI30System Energy today
AI31PulseFlowMeter
AI32Turbidity
AI33PhMeasure
AI34Conductivity
AI35Pump1OprTimeToday
AI36Pump2OprTimeToday
AI37Pump1StartCounterToday
AI38Pump2StartCounterToday
AI39Alarms 1-5 and warnings 1-5
AI40Sensor present status
BI0AcknowledgeAlarm
BI1FloatSwitch1Status
BI2FloatSwitch2Status
BI3FloatSwitch3Status
BI4FloatSwitch4Status
BI5FloatSwitch5Status
BI6Pump1Present
BI7Pump2Present
BI8Pump1Running
BI9Pump2Running
BI10Pump1CommFault
BI11Pump2CommFault
BI12Pump1Alarm
BI13Pump2Alarm
BI14Pump1Warning
BI15Pump2Warning
BI16Pump1Disabled
BI17Pump2Disabled
BI34Acknowledge ResetEventLogAlarm
BI35Control Status

Integration notes

Object list from section 4.4 of the PICS (pages 24-26). Compared with the LC 2X1 it adds AV 2, BO 1, MI 2, AI 30-38 and BI 34-35, and drops the 16 user digital inputs (BI 18-33).
AI 37/AI 38 (start counters today) are printed with unit 'min' and the same note as the run-time objects; listed as printed.
The same object table is printed in the CIM 500 PICS (98690071, https://api.grundfos.com/literature/Grundfosliterature-6226722.pdf); CIM 300 gives BACnet MS/TP and CIM 500 BACnet IP.
AI 39 bits 0-4 are warnings 1-5 and bits 8-12 alarms 1-5. AI 40 flags fitted sensors: bit 0 flow, 1 power/energy, 2-6 AI sensors 1-5, 7 turbidity, 8 pH, 9 conductivity, 10 pulse flow meter, 11 pressure, 12 level.

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 Level Control LC 2X2 (CIM 300 / CIM 500) 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 Grundfos Level Control LC 2X2 (CIM 300 / CIM 500)

How many BACnet points does the Grundfos Level Control LC 2X2 (CIM 300 / CIM 500) have?

This list has 77 BACnet objects: 41 analog inputs, 5 analog outputs, 3 analog values, 20 binary inputs, 2 binary outputs, 4 multi-state inputs, 2 multi-state outputs. The exact set on a given unit depends on its firmware, installed options and configuration.

Which Grundfos Level Control LC 2X2 (CIM 300 / CIM 500) BACnet points are writable?

11 of the 77 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 Grundfos Level Control LC 2X2 (CIM 300 / CIM 500) BACnet documentation?

The source is BACnet PICS CIM 300 - Supplement (pumps, booster systems, Level Control LC 2X1 and LC 2X2) (97750025), revision 05.2021, published free by Grundfos at https://api.grundfos.com/literature/Grundfosliterature-6013137.pdf.

What are the minimum BACnet points to integrate the Grundfos Level Control LC 2X2 (CIM 300 / CIM 500)?

Start with MO 0 Control Pump 1 (Pump 1: 1 = Auto, 2 = Forced start, 3 = Forced stop); MO 1 Control Pump 2 (Pump 2: 1 = Auto, 2 = Forced start, 3 = Forced stop); BO 0 Reset alarms (Alarm reset (1 = reset)); MI 0 System Operating Mode (Operating state: standby, pumping, alarm states); AI 6 Pit water level (Pit level in cm); BI 8 Pump1Running (Pump 1 running status); BI 9 Pump2Running (Pump 2 running status); BI 12 Pump1Alarm (Pump 1 alarm); BI 13 Pump2Alarm (Pump 2 alarm); AI 0 Fault code (Active Grundfos fault code).

How do I check these points on the real Level Control LC 2X2 (CIM 300 / CIM 500)?

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 Grundfos BACnet points lists

Source: BACnet PICS CIM 300 - Supplement (pumps, booster systems, Level Control LC 2X1 and LC 2X2) · 97750025 · rev. 05.2021. Object names, instances and units are reproduced as published; descriptions are our own.