Data Sheet for Product

18
Smart Infrastructure
CE2N5324en
2021-03-
19
Technical design
WZU-485E-MOD
RTU communication over RS485, transmission rate up to 19200
baud, setting the transmission rate and parity of the software (USB,
cable connection), refresh rate up to 10 sec. For UC50.. and for
UH50.. as of firmware 5.15 and higher
WZU-485E-BAC
MS/TP communication over RS485, transmission rate up to 76800
baud, setting the transmission rate and parity of the software (USB,
cable connection), refresh rate up to 10 sec. For UC50.. and for
UH50.. as of firmware 5.15 and higher
Both modules are externally powered with AC/DC 24 V and galvanically isolated from the
processor unit.
Switch off the module power supply before connecting it to the PC using the USB cable.
The micro USB interface is used exclusively to configure the communication protocol and
speed.
Analog module
WZU-AM
Function description
The analog module (WZU-AM) converts the measured value from the meter to an analog
signal. Each module has 2 channels with functions that can be configured independently.
The service software configures the unit (selection of measured values and output ranges).
The output signal is refreshed at 4-second intervals.
NOTICE
The analog module can be plugged into either of the 2 slots and 2 modules can be used
concurrently.
Power supply
The module must be powered via an external power pack (e.g. WZU-NE24). The 2 cables of
the power pack are interchangeable. The 2 analog modules can be powered by the same
power pack.
The module(s) and the meter can be connected to the same power outlet if the meter is
mains-powered (AC/DC 24 V). In this case, the wires must be bridged on module WZU-AM;
the plug-in terminals on the meter’s power pack are not suited for that purpose.
If a meter is used with an analog module, a D-cell is required – if battery-powered.
External fuse
Each analog module must have its own external fuse.