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Installation instructions for professionals
The ventilation unit can be controlled via Modbus as well.
There are two alternative Modbus connection methods
available. By using the X26 connector of the Modbus
RTU eAir motherboard. Or by using the Modbus TCP/IP
(md-sw version 1.30 onwards) with a X19 connector. The
connection method is selected in the settings wizard in
the eAir control panel, on the Modbus tab (eAir control
panel software version 2.07 onwards).
Modbus RTU default values
•
Modbus address 1 (1–100)
•
Communication form RS 485
•
Speed 19,200 (9,600 or 115,200) bps
•
Parity None (Even).
Modbus RTU X26 connection termination
RS485 X26 connector has options termination and
biasing. These are selected in the short-circuit block JP5,
which is right behind the X26 connection.
The below table shows the JP5 jumper. The bottom row is
closest to the X26 RS485 connector.
In the picture below you can see the placements of the
Modbus RTU and Ethernet / Modbus TCP/IP connections
on the eAir motherboard.
Modbus registers can be found on the Enervent website at
www.enervent.fi.
Installation to a Modbus
The Modbus TCP/IP connection method does not
allow any kind of authentication or encryption. The
unit must not be connected to a network that has
open access to public internet. At the minimum,
there must be a firewall that prevents external
incoming network traffic.
NOTE
[o o]
Biasing: Jumper installed = RS485 B line earthed
via the GND 600 Ω resistor.
[o o]
Termination: Jumper installed = bus terminated
[o o]
Biasing: Jumper installed = RS485 A line
connected via the +5V 600 Ω pull-up resistor
Modbus TCP/IP usage
•
Modbus address is not in Modbus TCP/IP use. Access
to unit is via the unit IP address.
•
Maximum two TCP/IP connections can be active at
the same time.
Bus control must not be connected to the
ventilation unit before the bus is configured and
compatible with unit control parameters.
WARNING
X26
Summary of Contents for LTR-3 eAir
Page 8: ...8 Kanavaliitännät ulkoilma tuloilma poistoilma jäteilma ...
Page 20: ...20 11 13 9 12 Lisävaruste 1 2 min 10 ...
Page 48: ...48 ...
Page 51: ...51 Ammattilaisen asennusohje ...
Page 52: ...52 LTR 3 eAir Installationsanvisningar för ventilationsaggregat Svenska ...
Page 58: ...58 Kanalanslutningar uteluft tilluft frånluft avluft ...
Page 70: ...70 9 13 15 11 10 14 Extra tillbehör 1 2 min 12 ...
Page 98: ...98 ...
Page 101: ...101 Installationsanvisningar för yrkesfolk ...
Page 102: ...102 Installeringsinstruksjoner for ventilasjonsenheten Norsk LTR 3 eAir ...
Page 108: ...108 Kanalkoblinger utendørsluft tilluft avtrekksluft avkastluft ...
Page 120: ...120 9 13 15 11 10 14 1 2 min 12 ...
Page 148: ...148 ...
Page 151: ...151 Installasjonsinstrukser for fagfolk ...
Page 152: ...152 LTR 3 eAir Installation instructions for the ventilation unit English ...
Page 158: ...158 Duct connections outdoor air supply air extract air exhaust air ...
Page 170: ...170 9 13 15 11 10 14 Extra 1 2 min 12 ...
Page 198: ...198 ...
Page 203: ...203 Koblinger Connections ...
Page 204: ...204 ...
Page 205: ...205 ...
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Page 210: ...210 ...
Page 211: ...211 ...
Page 212: ...212 ...
Page 214: ...214 eAir W Periaatekaavio eAir W Principschema eAir W Prinsippskisse eAir W Principle schema ...
Page 215: ...215 ...
Page 218: ...218 ...
Page 219: ...219 ...