Enertex Bayern

Role in our panels

How we use Enertex Bayern

The Enertex EibPC is a DIN-rail Linux computer (ARM Cortex-A9, 512MB RAM, 4GB eMMC, Debian Linux) with a built-in KNXnet/IP interface that functions simultaneously as a KNX logic controller and Modbus TCP/RTU master. Unlike the MDT IP Interface (passive tunnelling only) or Gira HomeServer (visualisation-first with limited Modbus), the EibPC is designed as the primary automation intelligence for complex KNX projects. Programming uses EibStudio — a Windows IDE with a proprietary high-level scripting language that compiles to machine code running on the EibPC Linux OS. EibStudio scripting language syntax for combined KNX/Modbus logic: the language supports conditional logic, timers, arithmetic, string operations, and network functions. Example solar surplus control script: IF KNX_Read(GA(9,0,0)) > 3000 AND Time >= 10:00 AND Time <= 17:00 AND DayOfWeek != 7 THEN KNX_Write(GA(11,0,0), 1, DPT1) /* close SG Ready relay */ ELSEIF KNX_Read(GA(9,0,0)) > 1500 AND KNX_Read(GA(9,2,2)) < 80 /* battery SOC */ THEN Modbus_WriteTCP('192.168.1.50', 502, 33, 3) /* Victron MultiPlus mode = on */. This single script combines reading a KNX solar PV GA with a timer condition, writing a KNX relay output, and writing a Modbus TCP register — not possible in standard ETS6 without multiple external devices. Enertex KNX IP Router 4.0 is the company's flagship DIN-rail KNX IP router. Compared to standard KNX IP routers (MDT IP Router, Weinzierl KNX IP Router 750, Siemens N146), the Enertex router adds: 4 simultaneous KNXnet/IP tunnelling connections (most DIN-rail routers offer 1-2), advanced line-to-line telegram filtering with ETS6 filter table support, Group Monitor with filtering and logging (accessible via browser UI without ETS6 connection), and firmware OTA updates. The 4-tunnel capability is critical for large installations requiring simultaneous connections from ETS6 (programming), PanelCraft service laptop (monitoring), building manager laptop (Group Monitor), and a KNX Virtual logic server. Comparison with alternative KNX logic platforms: IP-Symcon (Symcon GmbH, Germany) is a broader home automation server supporting KNX, Z-Wave, Zigbee, and 200+ additional protocols with a large module library — more expensive (subscription model) but broader protocol support. Home Assistant with KNX integration provides open-source KNX logic but requires significant configuration expertise and ongoing maintenance. EibPC occupies the middle ground: KNX-specialist hardware with a dedicated high-level scripting language, Modbus TCP master without additional middleware, and a stable commercial product lifecycle. PanelCraft recommends EibPC for projects requiring complex KNX logic with Modbus integration and 4+ simultaneous ETS6 connections; IP-Symcon for multi-protocol projects combining KNX with Z-Wave, Zigbee, or 3rd-party cloud APIs.

Enertex EibPC connects to KNX via built-in KNXnet/IP interface and simultaneously acts as Modbus TCP master to any Modbus device (inverter, boiler, chiller). EibStudio scripting: IF KNX_Read(GA(9,0,0)) > 3000 AND Time >= 10:00 THEN KNX_Write(GA(11,0,0), 1, DPT1) allows combining PV surplus (from inverter via Modbus TCP) with time conditions to control heat pump SG Ready relay. Enertex KNX IP Router 4.0: DIN-rail, ETS6 application, supports IP routing (line-to-line filtering), tunnelling (4 simultaneous connections), and Group Monitor with filtering — the most capable DIN-rail KNX IP router for large installations.