Cha pter 3 - Ins ta l l a ti on
© Softing Industrial Automation GmbH
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3.1.5 Modbus serial connection
When connecting the FG-200 via serial connection (RTU) use the connector from your
delivery with the following pin assignment:
Pin
Signal
Description
6
RX
R
eceiver e
X
change
5
TX
T
ransmitter e
X
change
4
GND
Ground
Note
If you are working with two FG-200 in redundant mode, the serial connection
cannot be used (see next Section).
3.1.6 FG-200 redundancy
If you intend to use two FG-200s as a redundant set, connect the redundancy link
interfaces (RDL) of both FG-200s (primary and secondary) by a cable before you power up
the devices. If the redundancy link is not installed before start-up, the FG-200 will operate
in non-redundant mode.
Note
As the interface is not galvanically isolated make sure that there is no potential
difference between the two connected devices.
