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CZone® Software Release 24.2 – June 2026

Technical Bulletin No. 203673

CZone® Software Release 24.2

Published August 27, 2026 · Covers the June 2026 software package

The CZone team is pleased to announce the release of a new software package. Below you'll find the updated software versions, what's new, and the full list of improvements and fixes included in this release.

Updated Software Versions

CZone Tools
Configuration Tool 6.29.22.0
Favorites Tool 6.29.11.0
CZone Displays
Touch 5 6.29.10.0
Touch 7 6.29.10.0
Touch 10 6.29.10.0
Touch 10 Gen 2 6.29.10.0
Wireless Interface 6.29.13.0
CZone Switch Modules
Waterproof Keypads (KP) 6.29.15.0
Switchpads (SP) 6.29.15.0
CZone DC & AC Modules
Combination Output Interface (COI) 6.29.15.0
Control 1 (C1) 6.29.15.0
Contact 6 (C6) 6.29.15.0
Contact 6 Plus (C6P) 6.29.15.0
Control X (CX) 6.29.15.0
RV1 (RV1) 6.29.15.0
CZone DDS (DDS) 6.29.15.0
Meter Interface (MI) 6.29.15.0
Signal Interface (SI) 6.29.15.0
Switch Control Interface (SCI) 6.29.15.0
Output Interface (OI) 6.29.15.0
Motor Output Interface (MOI) 6.29.15.0
Smart Battery Hub (SBH) 6.29.22.0
MasterBus Bridge Interface (MBI) 6.29.22.0
AC Mains Interface (ACMI) 6.29.15.0
AC Output Interface (ACOI) 6.29.15.0
Mastervolt (CZone)
ChargeMaster Plus (CHG) V1.17.0
CombiMaster (CMB) V2.1.0
CombiMaster5K (CMB) V1.22.0
Mastershunt 500 (MSH) V2.4.0
MLI Ultra (BAT) V2.14.0
MLI 1250 (BAT) V1.4.0
Mac Plus (DC/DC) V1.7.0
Mac Plus (DC/DC) (48V) V1.3.0
Blue Sea
M2 VSM (M2VSM) 6.20.21.0

CZone compatible Mastervolt firmware is included in the RTM24 Info Package; however, always refer to the Mastervolt website for the latest firmware updates.

Important: This release has separate SBH and MBI firmware updaters (6.29.22.0). Ensure these are applied separately after the ‘ALL MODULES’ updater.

New Features

CZone 2 iPhone App

The CZone 2 app is now available on iPhone, providing convenient local control and monitoring. The app works with any CZone system that includes a CZone Touch Display (5, 7, or 10 Gen 2) or a Wireless Interface. Simply configure the new Phone Layout in the Favourites Tool, load the Favourites Package to your display, and connect your iPhone to the WiFi access point.

RV1 Level Monitor

The RV1 module is now more capable with the addition of an RV level-monitoring feature that utilizes the module’s internal accelerometer. This function requires no additional hardware, is simple to configure, and provides an intuitive level display on CZone Displays and apps.

Date/Time

Date and time can now be shown on CZone Displays using one of the following methods:

  • Date/Time Favorites Widget – requires a CZone Display with Date/Time (Touch 5/7/10 or 10 Gen 2) and the RTM 24 Favorites Tool; drag & drop the date/time widget from the ‘Other’ tab to the desired location (widget fills 1 cell). Date, time, and font size format options also available.
  • Date/Time Favorites Overlay – requires a CZone Display with Date/Time (Touch 5/7/10 or 10 Gen 2); enable from Display Settings and it will appear on the bottom right on all Favorites Pages (Favorites Tool not required). Date, time, and font size format options also available.

Favorites Multiple Images

The Favorites Tool now supports importing multiple images, enabling the combination of vessel/RV imagery and branding on a single page.

Motor Limit Switch Improvements

RV1 and Control X H-Bridge Channels now have an option to repurpose the over current alarm as a motor auto-stop.

Reduced Timeout for Motor Circuits

There is now an option to switch off loads immediately from a momentary switch in the event the controller goes offline.

Other Software Features

  • Add 2nd switch bank instance on COI/Control 1/RV1 modules
  • Coleman Temperature Sensor (83303101) support on RV1/Control X
  • Add circuit current monitoring for Works With CZone Level 2 Partners
  • Connect 1 module and CZone Mobile app support
  • Add support for new MacPlus 48V models
  • Add ‘CV Power Control’ setting for MacPlus 12V/24V models (requires firmware 1.8.0)
  • Fathom support for Power+ users
  • Add split phase ‘phase angle detect’ option to CombiMaster 5K
  • Add Switch Bank support to MLI Batteries (2 instances)
  • Add Custom PGN as a default config tool feature
  • Add 3rd Party Generator as a default config tool feature
  • RV1 now allows switch inputs to be used as DC meters
  • New Ultrawide 3 x 8 layout in Favourites Tool 24.1

Improvements / Fixes

  • Fixed an issue with Touch 7 and Touch 10’s dropping off the network intermittently, causing selected Modes to drop out
  • Removed the ability to add SCI switches as loads on the ‘Loads’ tab
  • Fixed an issue with SI switch bank switches on the MFD sidebar not operating correctly when controlling virtual signals
  • Fixed an issue with DDS loads turning off after writing config when configured as ‘Stay On When Configuring’
  • Fixed an issue with Level Limit not releasing on an OFF command from the same level limit switch
  • Fixed an issue with the Favorites Tool being unable to save .cfp files in certain situations
  • Added MassCharger 401230756 to the known Masterbus Devices List 24.1
  • Fixed PGN Switches appearing ON in Modes Guru when not configured 24.1
  • Fixed Fathom I/O Diagnostics Page – circuit controls for engines only controlled stbd engine circuits 24.1
  • SBH invalid shunt reading improvements 24.1
  • Fixed the Inverter/Charger Power Flow page showing incorrect flow and wording for CombiMaster 24.2
  • Fixed time remaining showing “---” for DC Meters configured on MBI, including MBI on Wireless Interface 24.2 Note: to apply this fix, ensure you update MBI with the separate 6.29.22.0 firmware file.
  • Changed the SBH Current Sensor Error alarm to only show when a house battery meter is configured 24.2 Note: to apply this improvement, ensure you update SBH with the separate 6.29.22.0 firmware file.

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