Wilo Wilo-Smart, Installation And Operating Instructions Manual

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en Installation and electrical connection
16 WILO SE 2020-09
Bus topology
The bus topology consists of multiple participants (e.g. pumps, control devices and a
gateway) that have been connected in series. The participants are connected via a
shared cable.
The bus must be terminated at both ends of the cable. This is done for the two ex-
ternal participants. All other participants must not have activated termination.
Since the Wilo-Smart Gateway does not provide termination, the Gateway must not
be installed at the end of a bus line (Fig. 2).
If only one pump with Wilo Net is installed on the Gateway, the termination only has
to be activated on the one pump as an exception.
All bus subscribers must be assigned an individual address (Wilo Net ID). Please be
aware that twin-head pumps in the Wilo Net consist of two participants, both of
which must be adjusted accordingly in the Wilo Net settings. This Wilo Net ID is set in
the respective participant.
For more detailed information on how to set the Wilo Net ID and termination on the
respective connected device, refer to the respective installation and operating in-
structions.
The Gateway is preset to Wilo Net ID “21”.
In order to establish the Wilo Net connection, the three H, L, GND terminals are wired
with a communication cable from pump to pump to Gateway to pump. Use shielded
cables for cable lengths ≥ 2 m.
Up to 20 participants can be connected to Wilo Net 1. Twin-head pumps consisting
of two participants. For twin-head pumps, please also be aware that a maximum of
5 twin-head pumps can be operated in one Wilo Net segment. As well as the maxi-
mum of 5 twin-head pumps in a Wilo Net segment, up to 10 further single pumps can
still be integrated.
We anticipate that another 20 participants can be connected to Wilo Net 2 with the
future software functions that are planned for the Gateway. The available Wilo Net
IDs are reassigned in the second segment, so they can match the IDs used in Wilo
Net 1. If the participants are correctly connected to the Wilo-Smart Gateway and Wilo
Net IDs are correctly assigned, then the Wilo-Smart Gateway automatically recog-
nises the connected devices. The Wilo-Smart Gateway then automatically starts
transferring the data from the connected devices to the Wilo-Smart Cloud.
NOTICE
If Stratos MAXO is a participant in the Gateway, ensure that the software version
of the Stratos MAXO is at least V 01.04.00.00 or higher. If the software version is
01.03.xx.xx or older, the pumps require a software update so that they can com-
municate with the Gateway via Wilo Net.