-
Receives data
from the sensor
-
Electronics built into the
module can then convert the data to RS232 for HyperTerminal,
TS485 for ModBus, Analogue, Voltage, DeviceNet, ProfiBus and others.
-
Can be about 100m away from
sensor
-
EEx n (Safe for Zone 2 if
necessary)
-
Hohner can
also provide industry standard protocols, specifically to
implement IEEE 1451, the standard for smart sensors.
-
Applications in hazardous areas are specific and the
following facts have to be considered.
-
1. To
implement IEEE into WiFi: Zigbee contains IEEE 1451 and is
perfectly suited. More standards will follow in the future,
and like any complex standard, they contain large amounts of
data, thus reducing battery life. Ideally, applications
with low data transfer rates are suited for most industry
standard protocols.
-
2. Most
likely, WiFi communication is kept short to avoid battery
drainage and implementing IEEE 1451 is done in the hub with
industry standard communications software with Profi,
CanOpen, ModBus and DeviceNet or with hardware RS485, RS232
and CAN.
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