Gateway component ModbusTCP
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4.5 Connecting a Power Supply
To connect the gateway component to the power supply, you need a
spring-loaded terminal (e.g. Metz-Connect SP995xxVBNC).
You have to connect each gateway component separately to a power
supply. Never interconnect functional earth and GND, otherwise the
galvanic isolation between gateway GND and fieldbus ground will be
removed. Instead, connect the functional earth with low impedance to
the potential equalization. You can then dispense with this
connection if the shield of the fieldbus cable is connected to the
potential equalization with lower impedance when entering the
control cabinet.
NOTICE
Connect each of the two gateway components to the power supply
è
Ensure in particular that no potential differences occur between the
GND pins (2).
Pin assignment:
Pin
Assignment
1
24 V for module supply
3
1
2
4
2
GND
3
Do not connect!
4
Functional earth
NOTICE
Do not connect GND to PE
This connection could cause unintended malfunctions.
Installation
