Qonnex
Quick start 2-Wire v3.0
REL.44, Modbus I/0 module
The REL.44 module has 2 bi-stable, potential-free
10A relay contacts and 2 low-power solid-state
outputs for switching coupled consumers.
In addition, there is also a P1 connection for
reading the digital meter* and 2 pulse inputs for
counting and / or time measuring consumers via
impulses.
This module can be wired via Modbus with a
MEMo3 and from there configured and controlled. Multiple REL.44 can be
connected to the MEMo3 web server.
The REL.44 is a 'Modbus slave' i/o module and can therefore also be used to
connect with any Modbus master, as Modbus relay, but also as P1 to Modbus
and or pulse to Modbus interface. The list of Modbus registers can be found
on the 2-wire website.
The push button on the front serves to (temporarily) pair the REL.44 with
WiFi to download the latest firmware.
*REL.44 is compatible with all Belgian and Dutch digital meters.
Via P1, REL.44 reads:
Consumption import high rate
Consumption import low rate
Consumption export high rate
Consumption export low rate
Rate (high or low rate)
Consumption of gas (if measuring device is present)
Consumption of water (if measuring device is present)
Consumption import high + low rate
Consumption export high + low rate
Consumption import – export (positive or negative)
1. Connect:
Power supply: [1] Always first connect the optional 9–15 ±10% Volt
DC power supply and only then [2] P1 port input with galvanic
isolation with RJ12 cable (max 3 meters). Only with a Belgian or a
DSMR 5.x digital meter one does NOT
need to connect an external 15 VDC
power supply*
*Provided that the digital meter provides sufficient
power: the COM LED must first be constantly lit to
flicker on/off after approx. 10sec. If there is not
enough power from the digital meter, the REMI will
restart itself after about 3 minutes of charging, or
disconnect itself and only connect when all LEDs are
off.
Modbus:[3] shielded EIB bus cable 4x
0.5mm² use and respect the color code
GAB=black, yellow and white. ReMI or
set as Modbus master with 2-WIRE
meters, or Modbus slave in a MEMo3
setup, not both simultaneously.
Pulse IN: [4] 2x NO potential-free reed
contact, 0-5v/2mA, cable max. 2 meters, section 2x0.5mm². Pulse
duration min. 100msec, max. 10 pulses/hour.
Pulse-OUT: [5] 2x low power solid state contact with optical
isolation, max. 24 VDC/5mA, cable max. 2m, section 2x0.5mm².
Generates via logic either consumption pulses of P1 meter, or a low-
power switching contact.
Relay output: [6] 2x bi-stable potential-free 10A/230V relay
contact up to max. 2300 Watt ohmic load, or use as release contact
to the control of eg heat pump, charging station, boiler,
accumulation,... Connection wire min. 0.25mm² ... Max. 2.5mm².
Please note:
•Mono-phase module: connect both contacts to the same phase!
•Bi-stable: in case of voltage interruption, they retain their position!
LED:[7]PWR:power status, COM:Communication, R1 and R2: status
relays.
Antenna: On the SMA connector the WiFi antenna screws, when
mounted in metal cabinet order the optional antenna with magnetic
base.
2. Configuration in MEMo3b via tablet of PC:
See also MEMo3b manual 1.3.
In summary:
1. Login as installer under Level3:
password 'Level3' and then 'CANCEL'
2. Create a channel with 'ADD
CHANNELx'
3. When the channel appears click on the CHx button so that the channel
configuration opens see figure
4. As a module type you choose 'REL 44'
5. Enter Modbus address and that MUST be the same for all channels of
this REL.44 module
6. Enter the serial number e.g. '44R00770'
7. As a fashion you choose either:
a. 'P1 port' and complete P1 Type and Protocol (Belgium=6)
b. 'Bi-stable', choose Relay 1-4, at para3 power in Watts
c. 'Counter', choose IN1 or 2, give at para 3 pulse weight
d. 'Time', choose IN1 or 2, at para3 consumption after 1 hour
8. Press 'SEND'
9. Press 'SAVE'
Below is an example with 3 channels of the same REL.44 module.
3. Pairing with WiFi for upgrade
REL.44 is controlled via Modbus from the Memo3 module. The
connection with WiFi is only necessary if you want to upgrade.
Once REL.44 is connected correctly (see power supply REL.44) the
green PWR LED will be constantly lit followed by the orange COM
LED which after about 10 sec. flickers on/off every second. To
REL.44, the 'WiFi access point' mode can be applied for about 5
seconds to press the JOIN/UPG button until the orange LED is
constantly lit. REL.44 now becomes "WiFi access point".
NOTE: WiFi range: Make sure that during WIFI connection and also
during firmware upgrade the distance between REL.44,router,
smartphone or PC is as short as possible!!!
NOTE: Change existing WiFi link: Orestartand then press the JOIN/UPGR
button after 2-3 seconds (approx. 5 sec) until the COM LED remains
solidly lit. REL.44 now becomes "access point".
