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ELWA

®

Modbus Interface Operation Manual, 171018

ELWA

®

Modbus Interface

Operation Manual

1.Assembly

Before placing into operation it is essential to read the assembly instructions provided with the

device and the ELWA manual.

2.System requirements

The ELWA Modbus Interface can be used with all ELWA devices with firmware Version 1.30 or

higher. Devices with serial numbers lower than 120100160810xxxx are equipped with earlier

firmware versions.

To update the ELWA firmware a USB Interface is required. The update is not possible by

using the ELWA Modbus Interface.

If the ELWA Modbus Interface is used in combination with the Smart-Home System

LOXONE, the "Loxone RS485 Interface" and not the "Loxone Modbus Interface" has to be used,

otherwise Bus conflicts may occur.

The latest software packages are available at www.my-pv.com.

3.Operation displays

The 3 LEDs on the top are the operation displays on ELWA. Functions are described in the ELWA

instruction manual.

The 3 green LEDs underneath show the operation condition of the ELWA Modbus Interface:

No LED light: no power supply

all 3 LED blinking: no connection to the ELWA

upper LED light: connection to the ELWA ok

middle LED light: Modbus order received (timeout approx. 5 sec)

LED operation display

Green (on ELWA)

Yellow (on ELWA)

Red (on ELWA)

green

green

green

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