Installation
Connecting the smart meter
Connect the Dongle to the P1 connection of the smart meter via the supplied P1 cable.
Two hardware models
There are two hardware types with the Modbus firmware. The white and the black one.
The white version has a micro usb connector and fixed screw terminals.
The back version usb c connector, P1 out and a terminal connector.
From firmware version 1.4.0 both dongle models are supported.
Connect USB Adapter
In most cases, the dongle is powered via the p1 port of the smart meter. If you have older smart meter ( v2/v3 in NL ), a USB power supply + USB cable is necessary.
Connect RS485
See the Modbus RTU connections below. In most cases the GND shouldn't be connected.
The wireing of the P1 Modbus Pro+ (Black casing) is different.
Leds
There are two leds:
blue led: flash on at startup and flashes when a P1 message is successfully read
green led = power indication. Should always be on and NOT flashing.
Button
The button has several functions:
Press and hold during powerup = download mode
short press (< 5 sec) = reboot
long press (>5 sec) = factory reset. All values that are adjusted via the RS485 connection are reset to the default values
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