---
lang: "en"
title: "SECURE KNX MODBUS RTU GATEWAY 886.1 SECURE"
sku: "KNX-SECURE-MODBUSRTU-GATEWAY-886-1"
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---

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5498: SECURE KNX MODBUS RTU GATEWAY 886.1 SECURE

The KNX Modbus RTU 886.1 SECURE gateway is a compact KNX/Modbus gateway with 250 freely configurable channels (KNX data points). The device allows easy integration of Modbus devices supporting the RTU protocol via RS-485 into KNX installations. It can be used as a Modbus master or slave.

The assignment between KNX objects and Modbus registers is done via ETS parameters, without the need for other tools. The configuration can also be exported and imported via a DCA (Device Configuration App, ETS SW extension).

The device allows Modbus data to be interpreted and scaled according to KNX standard data point types.

Two buttons and three multicolor LEDs on the front panel allow local operation (test functions) and display of device status. The Modbus connection is electrically isolated from the KNX bus. All connections are pluggable.

 The Weinzierl Modbus Gateway Config Tool is a so-called DCA (Device Configuration AddIn) for ETS. With this tool, it is possible to export the configuration of a Weinzierl KNX Modbus RTU 886.1 SECURE gateway database and import it into another gateway. The Weinzierl Modbus Gateway Config Tool is available online as a free download in the KNX Association online store under Shop / ETS Apps (a user account must be created).

After adding it to the cart and checking out, the download link for the Weinzierl Modbus Gateway Config Tool will soon appear under "My Account / Products".

Please note: The Weinzierl Modbus Gateway Config Tool requires a commercial license of ETS 5.5 or higher.

## Technical Specifications 

- Housing: Plastic
- DIN rail mounted device, width: 18 mm
- Controls and indicators: 2 buttons and 3 LEDs, multicolor, KNX programming button with LED (red)
- Modbus Type: RTU, RS-485, 1.2/2.4/4.8/9.6/19.2/38.4/56.0/115,200 kBit/s, Master or Slave, Master: up to 25 slave devices, Up to 250 channels
- Power supply: KNX Bus approx. 4 mA, Modbus auxiliary power 12-24 V⎍, 5 mA
- Connectors: Connector for KNX Bus (red/black), Pluggable screw connector (3-pole) for Modbus, Pluggable screw connector (3-pole) for power supply

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Source: https://shop.marcomweb.it/en/konnex/secure-knx-modbus-rtu-gateway-8861-secure

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