MeinWiki

User Tools

Site Tools

Trace: • powmr-hvm6.2m_with_tasmota • technik
technik:powmr-hvm6.2m_with_tasmota

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision 		Previous revision
technik:powmr-hvm6.2m_with_tasmota [2025/10/04 13:21]
ich [Tasmota ModBus Script] 		technik:powmr-hvm6.2m_with_tasmota [2026/11/15 10:48] (current)
ich [PowMr POW-HVM6.2M with Tasmota]
Line 3: Line 3:
 To connect my **PowMr solar inverter** to **Home Assistant**, I needed some kind of adapter in between. I decided for **ESP32C3** with **Tasmota** firmware.  To connect my **PowMr solar inverter** to **Home Assistant**, I needed some kind of adapter in between. I decided for **ESP32C3** with **Tasmota** firmware. 
   * [[https://github.com/arendst/Tasmota]]   * [[https://github.com/arendst/Tasmota]]
 +  * {{ :technik:PowMr1_sch.pdf|Schaltplan}}
 Tasmota was comparatively easy to download and translate on my PC. Tasmota comes with a universal interface for ModBus devices such as PowMr. However, the ModBus register names and formats must be given in a kind of script.  Register and HW interface of my PowMr inverter was nicely analysed by  Tasmota was comparatively easy to download and translate on my PC. Tasmota comes with a universal interface for ModBus devices such as PowMr. However, the ModBus register names and formats must be given in a kind of script.  Register and HW interface of my PowMr inverter was nicely analysed by 
   * [[https://github.com/odya/esphome-powmr-hybrid-inverter?tab=readme-ov-file]]    * [[https://github.com/odya/esphome-powmr-hybrid-inverter?tab=readme-ov-file]] 
Line 54: Line 55:
 ===== Tasmota ModBus Script ===== ===== Tasmota ModBus Script =====
  
-I needed the script to access my Modbus based solar inverter PowMr. PowMr inverter are all very similar. Luckily +I needed the script to access/read my Modbus based solar inverter PowMr. PowMr inverter are all very similar. Luckily 
   * [[https://github.com/leodesigner/powmr_comm]]    * [[https://github.com/leodesigner/powmr_comm]] 
 investigated already on the registers for these PowMr inverters. investigated already on the registers for these PowMr inverters.
Line 156: Line 157:
 </code> </code>
  
 +===== PZEM004 module =====
 PowMr inverter lacks the AC input  power measurement. For this reason I added a PZEM004 module for power measurement, which is already fully supported by Tasmota - simply by selecting Rx and Tx-PZEM004 in the Tasmota pin configuration menue. PowMr inverter lacks the AC input  power measurement. For this reason I added a PZEM004 module for power measurement, which is already fully supported by Tasmota - simply by selecting Rx and Tx-PZEM004 in the Tasmota pin configuration menue.
  
 {{:technik:config_pzem.png?200|}} {{:technik:config_pzem.png?200|}}
  
-===== Tasmota-Berry ModBus Script =====+===== Tasmota-Berry ModBus Scripting ===== 
 +The above Tasmota script lacks the possibility of changing values on the modbus device (just reading is possible). 
 Dies sind Ideen für ein schöneres Berry Script. Dafür muß in der Pin configuration für pin20/21 statt ''None'', ''ModBr Rx/Tx'' ausgewählt werden, um das ''ModBusSend'' Kommando auf der Console zu ermöglichen. Dies sind Ideen für ein schöneres Berry Script. Dafür muß in der Pin configuration für pin20/21 statt ''None'', ''ModBr Rx/Tx'' ausgewählt werden, um das ''ModBusSend'' Kommando auf der Console zu ermöglichen.
  
technik/powmr-hvm6.2m_with_tasmota.1759576892.txt.gz · Last modified: 2025/10/04 13:21 by ich

Page Tools

Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Share Alike 4.0 International
CC Attribution-Share Alike 4.0 International Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki