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N2KAnalyzer® V3

NMEA 2000® analysis software

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N2KAnalyzer® V3 is a software tool, currently offered free of charge with the purchase of a Maretron NMEA 2000®/USB gateway (USB100) or a Maretron NMEA 2000®/Ethernet gateway (IPG100), which gives you a detailed view of all of the devices on an NMEA 2000® network, and lets you perform an enormous variety of configuration, updating and troubleshooting tasks. All you need is a PC running Windows and a Maretron USB100 or IPG100 gateway.

  • List all NMEA 2000® devices on the network
  • Display a wealth of following information for each device:
    • Node address
    • Manufacturer
    • Manufacturer Model ID
    • Manufacturer Model Version
    • Manufacturer Serial Number
    • Source
    • Device Instance
    • Data Instance
    • Label
    • Current software
    • Available software
    • Installation descriptions
    • Manufacturer information
    • Device Class
    • Device Function 
    • System Instance
    • NMEA 2000 Database Version
    • NMEA 2000 Certification Level
    • NMEA 2000 Industry Group
    • NMEA 2000 Product Code
    • NMEA 2000 Load Equivalency Number (LEN)
    • Transmitted PGN list
    • Received PGN list
    • Network Bandwidth
  • For devices supporting multiple channels, display the following information for each channel, as applicable:
    • Hardware channel
    • Indicator
    • Source
    • Instance
    • Label
  • Display NMEA 2000® messages transmitted by each device in an easy-to-understand, human-readable format
  • Modify installation description information on devices which support user-programming of this information
  • Modify source and instance information on devices which support user-programming of this information
  • Analyze the devices on the network and their transmitted data to ensure that there are no instancing conflicts which can cause “bouncing needles” on displays
  • Program label information on devices which support user-programming of this information to assign meaningful text strings to every device and channel
  • Configure / calibrate Maretron devices and select devices from other manufacturers
  • Update firmware on supported Maretron NMEA 2000® devices
  • Update N2KAnalyzer® V3 and its available firmware images over the internet
  • Troubleshooting
  • Firmware upgrades of Maretron products
  • Label configuration
  • Instance configuration
  • Device configuration
  • Save and restore device configuration information

N2KAnalyzer® V3 requires the use of a Maretron IPG100 or USB100 gateway. NMEA 2000® gateways from other manufacturers are not compatible with N2KAnalyzer®.

The latest N2KAnalyzer build version: 3.4.2.5

Changes in N2KAnalyzer version 3.4.2.5 from 3.4.2.4 (2026-06)
Corrections
  • Resolved an issue where valid device configuration files were not being loaded.
Changes in N2KAnalyzer version 3.4.2.4 from 3.4.0.10 (2026-04)
New Features
  • CLMD12
    • Config: Added support for use of input voltage channels for tank level indication.
    • Config: Added support for Virtual Switches
    • Config: Added ability to configure open load to transmit error on per breaker basis.
    • Disallowed updating CLMD12 software v1.17.xx to the same version.
  • CLMD16
    • Config: Added support for Virtual Switches.
  • Updating software in CLMD12 and CLMD16 first backs up the device configuration, performs the software update, and then restores the backed up device configuration.
  • IPG100
    • Config: Added requirement for a password to be entered to enable Cloud Service connection.
  • TLM150
    • Config: Modified to only show tank types "Fuel" and "Gasoline" for the TLM150, which is gasoline specific.
  • Pressure sensor-based tank level indication: Updated Fluid Density Table with latest Source Types.
  • Added functionality to populate Support Tools à Test Mode window with details of the device selected in the device list.
  • Added a message box to be displayed during creation of complex configuration dialogs to inform the user what is taking place
Corrections
  • CLMD12
    • Config: corrected PGN Enable/Disable behavior.
    • Config: fixed program crash that could occur when a configuration file saved from a CLMD12 was loaded into another CLMD12 running an older software version.
    • Config: where the configuration screen would incorrectly warn of changed parameters.
  • CLMD16
    • Config: Alarm page, where signal names were not completely visible.
    • Config: Fixed program crash that could occur when a configuration file from
    • CLMD16 was loaded into another CLMD16 running an older software version.
    • Config: tank configurations were not always loaded correctly from configuration files.
Changes in N2KAnalyzer version 3.4.0.10 from 3.4.0.9
Download Version: 3.4.0.10
Corrections
  • CLMD16 Corrected issue initializing Step Fill Calibration in TLA, TLM and FPM configuration windows
Changes in N2KAnalyzer version 3.4.0.9 from 3.3.0.18 (2024-11)
New Features & Corrections
  • CLMD12
  • Installation Description will not 'Get from Device' after being 'Put to Device' (N2KA-121)
    • Device Instance will not 'Get from Device' after being 'Put to Device' (N2KA-124)
  • CLMD16
    • Add support for programming WSO200 application and boot firmware.
    • Installation Description will not 'Get from Device' after being 'Put to Device' (N2KA-122)
  • Device Instance will not 'Get from Device' after being 'Put to Device' (N2KA-123)
  • FPM100
  • Issues with setting pressure limits above 1000 PSI (N2KA-119)
    • Issues with Putting and Getting Tank Calibration tables. (N2KA-131)
  • Add support for upcoming SMS200, including the beta version that mimics an SMS100
  • Fix bugs when scrolling larger dialogs
  • Fix issues with loading boat files
  • Fix issues with loading tank calibration files.
  • Capture Octoplex content when saving from non-licensed version (N2KA-38)
  • Update Splash Screen logo to Maretron-Littelfuse (removed splash screen) (N2KA-98)
  • WSO200 Support (N2KA-100)
  • Modify N2KA to send requests to the CLMD16 and CLMD12 with higher priority (N2KA-108)
  • Nomenclature discrepancy in N2KAnalyzer for DCM100 (N2KA-120)
  • Pertaining to Octoplex AC Boxes Configuration doesn't load all parameters. (N2KA-125)
  • Pertaining to Octoplex DC Boxes Configuration doesn't load all parameters. (N2KA-126)
  • Pertaining to Octoplex SIU the Configuration doesn't load all parameters as expected. (N2KA-127)
  • SIU Window Scrolling is limited (N2KA-128)
  • Pertaining to Octoplex AC Boxes, labels will show Red in color after putting changes to box. (N2KA-130)
  • CLM100 - Not displaying Realtime Current (N2KA-133)
  • Updated Maretron Image Library 09/20/23
    • DSM410 - 1.9.1.2
    • DSM570 - 1.9.1.2
    • IPG100 - 4.2.0.1
    • J2K100 - 2.4.2.1
    • SMS200 - 1.0.0.6 beta
    • WSO200 - 1.0.2.1
  • Updated MPower Image Library
    • CLMD12 - 01.16.01
Changes in N2KAnalyzer version 3.3.0.18 from 3.2.0.3
Download Version: 3.3.0.18
New Features
  • CLMD16 software enhancements from 1.0.2.4 to 1.0.3.66
  • Hardwired Input(s) sensed voltage value can now be broadcast over NMEA 2000® via PGN 127508 (CLMD16SW-23)
  • 'Soft Turn ON/OFF'. An automatic lighting effect that enables a PWM ramp over 1s for a breaker(s) PWM value from 0% to 100% when turning ON, and from 100% to 0% when turning OFF. (CLMD16SW-66)
  • 'Group Switching', enabling this 'Global Commander' capability that can command any breaker On or Off and it's PWM value. This feature supports Sequential Input detection. (CLMD16SW-58)
  • Discrete I/O input count increased from 32 to 48. (CLMD16SW-55)
  • CLMD12 software enhancements from 01.14.10 to 01.15.50
    • Create ability to have a channel controlled by a flash map but with inverse polarity from normal (CLMD12-7)
    • Sequential Switching (Logic State Machine) (CLMD12-8)
    • Ability to "Turn On" Individual Instance Broadcast of 127508 PGN for Voltage Sensing Inputs 1-7 (CLMD12-9)
    • Addition of CLMD12 'Manual Mode' (CLMD15-15)
    • Create an Automatic Lighting Effect via Pre-Defined PWM Ramp (Soft ON/OFF) (CLMD12-25)
    • Allow the CLMD12 Hardwired Voltage Sensing Inputs to be Configurable (CLMD12-39)
    • Multiple channel Windshield wiper synchronization (CLMD12-31)
  • Added configuration support for WSO200
  • Added configuration support for SMS200
  • Updated Maretron Image Library 09/20/23
    • DCM100 - 1.1.1.3
    • DSM410 - 1.8.8.4
    • DSM570 - 1.8.8.4
    • IPG100 - 4.1.10.1
    • VDR100 - 3.0.7.1
    • WSO200 - 1.0.2.1
  • Updated MPower Image Library
    • CLMD12 - 01.15.50
    • CLMD16 - 1.0.3.66
Enhancements & Corrections
  • CLMD16
    • Correct bug where direct (Network) PWM control of a breaker could not be commanded when Counter switching element is implemented on a breaker(s) (CLMD16SW-31)
    • Correct bug where PWM default is ignored when a Counter switching element is implemented on a breaker (CLMD16SW-53)
    • Correct bug where when commanding PWM level via 127500, the CLMD16 would not accept the command (CLMD16SW-79) (CLMD16SW-81)
    • Changed PWM frequency rate of breaker channels 1,2,11,12 from 20khz to 200Hz when applicable (PWM Enabled) to reduce CLMD16 electrical noise (CLMD16SW-82)
    • Improvements to NMEA 2000 Binary Status Report PGN 127501 periodic update refresh rate. Rate has changed from 15s periodic update to 1.5s periodic update. (CLMD16SW-71)
    • Corrected bug where input signal would be ignored if in an 'Active High' or (On) state before power-up initialization and channel stay off. (CLMD16SW-19)
    • Improvement to 'One Button Smooth Scroll' Counter switching element. The Toggle signal for this feature now operates on the Falling Edge of the assigned input signal if not longer than 'Hold Period'. This improvement allows the breaker not to turn Off before allowing the user to re-enter 'Smooth Scroll Mode'. (CLMD16SW-21)
    • Correct bug where breakers configured 'Default State On' 'Default Lock State On' will not enable breaker on at power-up. (CLMD16SW-56)
    • Improvement to paralleled breaker on indication. Both breakers will now show on instead of just the primary breaker when breakers are parallel. (CLMD16SW-60)
    • Correct bug where Counters 9-16 would not write to device. (CLMD16SW-61)
    • Correct bug where Default State: 'Last State' would not be restored after power-up. (CLMD16SW-78)
    • Improvement to Current Loop Input channel: The Current Loop channel will now periodically reset after a short-circuit is detected, allowing incorrect wiring of a sensor not to disable the input even after wiring is corrected. (CLMD16SW-87)
    • Improvement to Current Summation (Unit Over-Current Fault) detection. The unit Overcurrent fault will now activate when the unit's live current consumption of all breakers summed exceeds 140A for a duration of over 1s. (CLMD16SW-115)
    • Resolved the issue of counter channels resetting to the default dim value instead of min value. (CLMD16SW-80)
    • Resolved the issue of channel with active input turning off instead staying on when Manual Override is turned off. (CLMD16SW-107)
    • Resolved the issue of high in-rush current with high capacitance or inductive loads tripping the channels. (CLMD16SW-119)
    • Resolved the issue of Analog Input indexing causing a stuck-low in certain inputs. (CLMD16SW-114)
    • Resolve issue of CLMD16 in bootloader mode not being able to upload new firmware.
  • CLMD12
    • Corrected bug where Channel 1 can flash and/or turn on or off unexpectedly (CLMD12-22)
    • Change CLMD12 Factory Current Rating and ECB Current Rating Write Order (CLMD12-33)
    • Correct support for installation on TSM/MBB devices using WINE on Linux.
    • Correct support for TSM/MBB devices that have limited screen resolution. The dialogs now correctly scale and scroll.
    • Miscellaneous application bug fixes and improvements.

 

Changes in N2KAnalyzer version 3.2.0.3 from 3.2.0.2 (2022-05)
New Features
  • Updated Maretron Image library 03/16/22
    • DSM410 - 1.8.6.3
    • DSM570 - 1.8.6.3
    • IPG100 - 4.1.9.1
  • Updated MPower Image library
    • CKMF12 - 2.01.00
    • CLMD12 - 01.14.11
    • CLMD16 - 1.0.2.4
    • VMM6 - 1.07.00
 
Changes in N2KAnalyzer version 3.2.0.1 from 3.0.6.1 (2022-03)
Corrections
  • CLMD12
    • Removed "Factory Current Rating" dialog box (N2KA-18)
    • Delete “ECB Model revision #” in the “General” tab ECB parameter section. (N2KA-20)
    • Make PWM slider bar visible only if PWM is enabled for that channel. (N2KA-23)
    • Add read-only information of Max ECB current rating in the "General Tab" ECB breaker # designation (N2KA-31)
    • Uniformity of labeling Inputs (N2KA-41)
    • Uniformity in Hardwired Inputs 'On Levels' (N2KA-46)
  • CLMD16
    • Show tank volume calculations in 1k Ohms and 0-250 Ohm Tank Calibration dialogs (N2KA-15)
    • Remove “Analog Reference” dialog for Input channels 9-11 (N2KA-16)
    • Add read-only information of max ECB current rating in the “General” tab ECB breaker number designation (N2KA-19)
    • Swap live voltage and current positions to match the CLMD12. (N2KA-24)
    • Remove “Ch x Tripped” and “Ch X Thermal Limit Hit” from input selection. (N2KA-25)
    • Applied a default set value when "One Button Smooth Scroll" is selected as a "Counter Type" (N2KA-26)
    • Change Naming Convention of "Binary Event" to “Input” (N2KA-27)
    • PWM Control Slider not visible when PWM Counter is enabled (N2KA-33)
    • Fix order of counter types (N2KA-63)
  • CKM12
    • Reorganized configuration dialog box (N2KA-28)
  • VMM6
    • Reorganized configuration dialog box (N2KA-29)
  • CLM100
    • Support latest features added in SW 1.2.1.1 and 1.2.2.4 (N2KA-35)
  • J2K100
    • Updated instancing labels within configuration dialog box (N2KA-50)
  • SSC300
    • Corrected issue where calibration would fail (N2KA-48)
  • Miscellaneous bug fixes, grammatical corrections and stability improvements
New Features
  • Updated sample vessel file (N2KA-36)
  • Added links under Web tab [Remote Support, IPG100 Recovery, VDR100 Recovery] (N2KA-42)
  • Updated splash screen logo (N2KA-45)
  • Displays warning if installing on an ARM-based Windows device (N2KA-49)
  • N2KAnalyzer installer tool requires admin privileges to install

 

Changes in N2KAnalyzer version 3.0.6.2 from 3.0.6.1 (2022)
Corrections
  • Miscellaneous bug fixes and stability improvements

 

Changes in N2KAnalyzer version 3.0.6.1 from 3.0.4.1 (2021-06)
Corrections
  • CLMD16
    • Modified general tab to get channel voltages and currents from standard PGN 127751
    • Fixed bugs and performance issues with tank calibration
    • Added ability to use breaker states as switching application inputs
    • Fixed a buffer overflow that was corrupting the heap. 
    • Added Manual Mode parameter (default OFF) to disable the direct effect of Network Input signal changes on the same numbered breakers.
    • Added ability to use breaker statuses as switching application input
    • Add code to enable/disable the "Manual Mode" and "Toggle Mode" controls when channels are grouped or ungrouped.
  • CLMD12
    • Added code to enable CLMD12 to start flash cycle with off state rather than ON state
  • GPS200
    • Created an option to dump GPS module firmware for GPS200 HW 3
    • Added code to dump Locosys GPS module firmware
    • Hide and disable the UI button to “Update Module Firmware”
  • General
    • Removed the need to acknowledge "success" dialogs.  This is a problem when saving a boat file, as user has to click OK for every single device on the network.
    • Modified startup code so that holding left shift and control keys will bypass the automatic gateway reconnect
    • Modified License Validator to look at all Ethernet MAC addresses to validate the OctoPlex Configuration License
    • Update build number to 3.0.6.x
    • Refresh the splash screen graphics with correct MPower logo
    • Fixed a memory-access bug that could crash the application when starting the DSM emulator
    • Added structured exception handling to catch some intermittent and recoverable crashes.
    • Updated the NMEA manufacturer database based on the list dated Feb 5th, 2021

New Features
  • Update Maretron Image Library
    • DSM570 - 1.8.3.2
  • Update MPower Image Library
    • CLMD12 - 1.14.10
    • CLMD16 - 1.0.1.4

 

Changes in N2KAnalyzer version 3.0.4 from 3.0.3 (2021-03)
Corrections
  • Fixed issue with labels showing up for the wrong device on main screen
  • Renamed "Unique Instance" column to "Data Instance", and positioned column following "Device Instance"
New Features
  • New USB100 driver to address stability issues for Windows 7 and newer, older Window versions will continue to use legacy driver

 

Changes in N2KAnalyzer version 3.0.3 from 3.0.1 (2021-02)
Corrections
  • Miscellaneous bug fixes and stability improvements
  • Improved CLMD12 breaker combining

 

Changes in N2KAnalyzer version 3.0.1 from 3.0.0
Corrections
  • Miscellaneous bug fixes and stability improvements

 

Changes in N2KAnalyzer version 3.0.0 from 2.4.22.3   -   N2KAnalyzer V3 Introduction
New Features
  • Added configuration support for MPower devices (CLMD16, CLMD12, VMM and CKM)
  • Refresh the splash screen graphics with new logo for Carling Products
  • Combined database utilities of Maretron N2KAnalyzer and Carling G2Analzyer
  • Updated Maretron Software Directory with latest releases

 

Changes in N2KAnalyzer version 2.4.22 from 2.4.21 (2019-02)
Corrections
  • Support NBE100 PGN filter configuration
  • Support NBE100 BOOT firmware upgrade for NBE100 HW 2.0
  • Support J2K100 BOOT firmware upgrade for J2K100 HW 2.0
New Features
  • Update Maretron Image Library
    • J2K100 - 2.3.1.4
    • J2K100 - BOOT 2.1.2
    • NBE100 - 2.3.1.2

 

Changes in N2KAnalyzer version 2.4.20 from 2.4.19 (2018-07)
Corrections
  • Support flashing DCM100 HW 2.0 (4466)
  • Limit transmission rate to be compatible with 250kbps CAN bus
New Features
  • Update Maretron Image Library
    • VDR100 - 3.0.6.1
Changes in N2KAnalyzer version 2.4.19 from 2.4.18 (2018-04)
Corrections
  • Support flashing VDR100 and IPG100 firmware via USB Gateway (4454)
  • Fixed DF60009 translation issue (4453)
  • Check and display warning if VDR100 is not ready to be upgraded (4458)
New Features
  • Update Maretron Image Library
    • FPM100 - 1.1.1.2
    • VDR100 - 3.0.5.2

 

Changes in N2KAnalyzer version 2.4.18 from 2.4.16 (2018-01)
Corrections
  • Added bandwidth measurement (4427)
  • Added ability to set fixed node address on GPS200 (4422)
  • Correct improper display of "Preparing device for update" when moving to new flash block (4423)
  • Increase flash erase timeout for software updating (4428)
  • Eliminate flashing hourglass cursor during some grid updates (4424)
  • Program stability improvement (4426, 4429)
New Features
  • Update Maretron Image Library
    • DSM150 HW 1.0 - 1.7.5.3
    • DSM150 HW 2.0 - 2.7.5.3
    • DSM250 - 1.7.5.3
    • DSM410 - 1.7.5.3
    • IPG100 - 4.1.3.3
    • USB100 HW 1.0 - 1.9.1.1
    • USB100 HW 2.0 - 2.1.1.2

 

Changes in N2KAnalyzer version 2.1.x Series
New Features
  • New "Boat File" backup features!
  • Examine a "Boat file" instancing analysis and correction aids
  • New Data Collision Analysis feature on/off-line
  • New bus bandwidth meter.
  • Connects to IPG100.
  • VDR100 support
  • DSM410 support
  • SMS100 support
  • DSM150 support
  • TSM800/1330 support
  • Added Tank diagnostic support
  • Added CLM100 loop current support
  • Support flashing DCM100 HW 2.0

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