M-Bus Add-On Module Ewa600C-Mbus; Connection To The M-Bus - Honeywell Home Resideo EW701 Instructions De Service Et De Montage

M-Bus add-on module EWA600C-MBUS

The M-Bus add-on module EWA600C-MBUS facilitates communications be-
tween a heat meter and an M-Bus control unit to transfer the measured values.
The measured values of the meter are read out and updated by the M-Bus add-
on module via the optical interfaces periodically, at intervals of 10 minutes.
After intermediate storage in the M-Bus add-on module, the usage data is
transferred to an M-Bus control unit via the M-Bus upon request.

Connection to the M-Bus

The M-Bus cable is installed on the basis of EN 13757-2.
Please note the following instructions:
• Use high-quality spring-loaded terminals or crimp connections suitable for
the cross-sections.
• Avoid unnecessary scanning of the M-Bus.
• Put the M-Bus into operation in one session if possible.
• Ensure the M-Bus has an uninterruptible power supply.
• Avoid switching the M-Bus off.
• Avoid short-circuits in the M-Bus cable during service work and retrofit
installations.
Voltage supply
The M-Bus add-on module EWA600C-MBUS is also equipped with a battery
in addition to any power supply that may be present via the M-Bus connection.
This provides the supply for the add-on module processor if there is no M-Bus
voltage present.
Installation of the M-Bus add-on module
EN 50 MU2H-0501ge23 R1020
With the heat meter set
(EW7011BK..), the M-Bus add-on
module is already pre-fitted at the
factory.
EW701 with
M-Bus add-on module EWA600C-MBUS
V1.00 / 3.5.2018