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[LMA1] Modbus RTU Generic Adapter

NEW PRODUCT - REPLACES LMG

WILL BE AVAILABLE AS FROM MID JUNE 2025

Description

High quality RJ45 (male) to 3-screw connector.
Part of set LMGS+LMA1 for direct serial connection of the inverter to the FlexiObox.

Always to be used in combination with LMGS “Black Dongle”.

Use this adapter with a LMGS “Black Dongle” for setting up a customized Modbus RTU wired 3-screws connection.

From the top view:

left screw

center screw

right screw

Data A (+)

Data B (-)

GND (ground - shielding)

Product images

LMA1 schematics.jpg

Related products

  • LMGS “Black Dongle” (mandatory)

  • LMG (discontinued product)

Installation instructions

Use the LMA1 adapter together with LMGS “Black Dongle”.

Disconnect the 3-screw terminal part from the LMA1 adapter.
Connect Data A (+) and Data B (-) respectively to the left and middle screw.
If the inverter cable has shielding (recommended), connect the shielding to the right GND screw.

Tip: seal the screw- and dismantled cable part with a heat shrink tube

  • Plug the 3-screw part back into the LMA1 adapter.

  • Plug the cabled LMA1 into the LMGS “Black Dongle”.

  • Connect the USB-A side into the FlexiObox.

You will now have following connections:

FlexiObox <--> LMGS “Black Dongle” <--> LMA1 <--> Inverter

Technical details

Data

Product nummer:

LMA1

Weight:

20 gram

Cable length:

n/a

Connector 1:

RJ45 (male)

Connector 2:

3-screw terminal

GTIN-13 ref:

05430004172222

Documentation

Product datasheet:

EU safety leaflet:

CE declaration:

Certification EMC/ROHS/CEBEC:

Tips - Q&A

  • This adapter can only be used in conjunction with LMGS “Black Dongle” to achieve direct serial Modbus RTU connection between the inverter and FlexiObox.

  • LIFEPOWR recommends using Modbus RTU rather than Modbus TCP:

    • Modbus RTU uses a direct serial connection between FlexiObox and inverter

    • Modbus TCP uses the local network and might be slightly less stable or less fail-proof

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