7
WIKA operating instructions, model PGW23.100.11
EN
14391169.01 10/2020 EN/DE
limits, for particular measured values can be configured over the IIoT platform. In addition,
the instrument status (current measured value, battery life, etc.) can also be queried
locally via a mobile device using a local interface via NFC (“near field communication”).
2.3 LPWAN infrastructure
A measuring instrument that allows remote transmission via radio must be integrated into
the IIoT infrastructure. The following schematic illustration shows a typical LPWAN
infrastructure:
Data from an IIoT-ready measuring instrument is transmitted wirelessly to the gateway. It is
ensured that only authorised end devices may communicate with the network server (e.g.
LoRaWAN
®
). For this, the measuring instrument must first be coupled with the network
server. In LoRaWAN
®
, the radio transmission can be up to 10 km. The ranges depend on
the topography.
Measured values from several hundred LoRa
®
-enabled IIoT instruments, such as
the model PGW23.100.11, can be captured by a gateway and transmitted via cable
connections (e.g. via Ethernet) or over-the-air (e.g. via 4G or WLAN) on to a network server.
In a web-based IIoT platform, the measured data can be stored, alarms can be set and
configurations can be made on the instrument. If the limit values are exceeded, alarm
messages can be sent as notification via SMS or e-mail. The measured data can be
analysed via the visualization in the dashboard, thus enabling remote monitoring of the
process pressure. WIKA provides an app called “myWIKA wireless device” to support
commissioning and local status inquiries of the measuring instrument.
2.4 Connection to IIoT platform
The instrument is connected to a LoRaWAN
®
gateway and the measured values are
transferred to the IIoT infrastructure (e.g. platform, PC, mobile device, etc.) at freely
configurable intervals.
Application server
(dashboard)
Gateway
Network server
IIoT platform
Instrument
2. Short overview
The LoRa
®
mark and LoRa logo are trademarks of Semtech Corporation.
LoRaWAN
®
is a mark used under license from the LoRa Alliance
®
.
