Meter With M-Bus Interface And 2 Impulse Inputs Wfx54; Pin Assignment - Siemens WFx5 series Bedienungs- Und Montageanleitung

Meter with M-Bus interface and 2 impulse inputs WFx54..

Devices of the type WFx54 are equipped with an M-Bus interface. This serves
as a communication hub for transmission of the measured values to an M-Bus
control unit. In addition, the devices are equipped with 2 impulse inputs. This
allows the impulses from one or two water meters with impulse output (Reed
contact) to be recorded and transmitted to the M-Bus control unit.
Add-on modules cannot be fitted onto
meters of the type WFx54..
Connect control cable on the device

Pin assignment

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 instal-
lations.
EN 100 A6V10816676_----_a
Impulse input 1 Pin 1: orange
Impulse input 2 Pin 1: red
M-Bus Pin 3: red
Connection impulse input
Connection to the M-Bus system
Pin 2: brown
Pin 2: black
Pin 4: black
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