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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