120
saia-pcd.com
SBC
Saia PCD®
kWh
L1
L2
L3
N
(PEN)
D /D
S-Monitoring
Measuring energy in both directions
With the bidirectional energy meters, energy can be measured in both directions of flow. The energy meters
work in a balancing mode (Mode 2). This means that they form the sum of all measured phase outputs ana-
logue to the old Ferraris meters with a rotating disc. The main area of use of bidirectional meters is wherever
both energy flow directions occur (energy consumption and feed), such as in photovoltaic systems. For con-
nection to the PCD world, FBoxes can be used which capture the measured values easily. Connection to the
E-Monitor is possible directly, without additional manipulation.
Integrating the energy meter as a component in an existing, external system
The M-Bus energy meters can be integrated in any M-Bus system and can be read out with any M-Bus master. This enables use in exist-
ing systems with an existing M-Bus infrastructure or even in new projects with various other M-Bus components.
The energy meters with integrated serial Modbus RTU interface enable fast and secure communication with superordinate systems. The
market offers many components for data transfer, backup and visualisation of the measured data. Thanks to the wide variety, simple
integration via various transmission channels is possible. With Modbus, the existing structure can be used without having to make
expensive new purchases.
EPLAN macros are available for
project planning and engineering
S
Energy measurement of both current directions with one Saia PCD®
for further processing of the measured values
Level converter
/ M-Bus Master
Electrical energy meter
Three
phase
Heat
meter
Gas
meter
Water
meter
PC
Single
phase
Electrical energy
meter
Energy meter
with Modbus
RS-485 wireless
gateway
HMI with
Modbus master
Modbus
Modbus
S-Bus, twisted wire pair
Fuse: T 250 mA (3×)
3 × 230/400 VAC
The eplan® electric P8 macros are avail-
able on the support page.
The macros and article data is also pro-
vided on the eplan® data portal.
max. 1,200 m
