> For the complete documentation index, see [llms.txt](https://support.powerio.com/hub/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.powerio.com/hub/downloads/en/codesys-hvac-templates/template-macro.md).
# Project template - Macro
Download and changelog page for the project template "Macro"
### Documentation
To Documentation
### Current Version
2.2.0.3 - CODESYS 3.5.21.2_C - Download
Release Date 21.08.2026
**New functions and changes**
* Template optimized and adapted for CODESYS version 3.5.21.2\_C
* Swipe function without preview activated
***
### Older versions
2.2.0.1 - CODESYS 3.5.21.2 - Download
Release Date 19.01.2026
**New functions and changes**
* Template optimized and adapted for CODESYS version ≥ 3.5.21.2
2.1.1.6 - CODESYS 3.5.17.2 - Download
**New functions and changes**
* Lib HVAC to 3.2.1.14
* Lib HVACV to 3.2.0.18
* Lib HVACModbus to 1.1.0.38
* Lib HVACModbusIO2 to 1.0.2.6
* master Clock send and receive: missing variable ActivClocksVisu added
* FB CPU\_Station: pulse added when communication is OK again
* GLT\_Programm: added send pulse after a station is connected again for sending the NVL\_GLT
* Send clocks: variable Weekclock\_1CHx\_Mode added
* Send clocks: variable ActivClocksVisu added
* Program and task Alarmmessage deleted. No longer needed due to newer version of alarm email sending
* Cross-flow heat exchanger: minimum pressure and link with xOpTCon for xFrost added
* Heat wheel: minimum pressure and link with xOpTCon for xFrost added
* FanExtensionA: ControlPI replaced by ControlPIext
* for master station GLT
* Main: page Send clocks added
* Send list NVL\_GLT added
* for all FBs with day/night operation, additional operating mode Off added, with note 'no frost monitoring'
* Heating circuit designation/allocation added in the zones
* RLT03: messages added in alarm list FanSUPx.xAlarmMSS and FanETAx.xAlarmMSS
* TypA\_HZK: Pump: xForceOption changed to false
* TypA\_HZK\_MOD: Pump: xForceOption changed to false
* TypC\_RLT: ControlPI\_Dehum added for dehumidification
* FreeNightCooling and FNK\_mit\_Zonen: TOF added after xClockchannel. When two clocks are used and at 23:59 rMaxOsTemp is not reset immediately.
* Rename AT average dropdown
* Outside Temperature: manual added for average temperatures
* TypB\_RLT: Edit\_TempCoolOut: values adjusted
* FanExtensionA: hysteresis for writing YMin and YMax added
* TypB\_RLT and TypC\_RLT: minimum offset between set temperature heating mode and cooling mode inserted
* KaeltemaschineT: FB Burner replaced by FB DeviceSimple2 and DeviceSimpleA
* FB ClockSlave32 renewed in all FBs and clocks assigned
* PI controller edit buttons added in the macros
2.1.1.1 - CODESYS 3.5.17.2 - Download
**New functions and changes**
* Text 'Station XY' replaced with 'Station new' (sStationsname)
* Text list 'TL\_eTAU\_Durchschnitt' renewed
* \- TypA\_HZK - TypA\_Frame\_Einstellungen\_HZK: combo box updated - input xValveAlarm added (also in alarm list - heat meter removed
* \- TypB\_HZK: TypB\_Frame\_Einstellungen\_HZK: combo box renewed
2.1.0.0 - CODESYS 3.5.14.0 - Download
**New functions and changes**
* Updated to CODESYS version 3.5.17.2
* Modbus IO Visu page was added under the "SERVICE" menu item.
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