Eaton Electrical PROFIBUS-DP EZ204-DP - Manual (Page 29)

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3 Device Operation
Initial power up X Before you switch on the device, verify that it is properly
connected to the power supply, to the bus connector and to
the basic unit.
X Switch on the power supply to the basic unit and the
PROFIBUS-DP expansion unit.
The Power LED of the EZ204-DP is lit. The BUS LED is off (no
communication via PROFIBUS-DP).
The GW message (intelligent station connected) is displayed
on the basic unit.
As soon as the device is integrated in the PROFIBUS-DP
network, the BUS LED is continuously lit (“static”) and the GW
message is statically displayed, also on devices with a
flashing GW message.
If the PROFIBUS-DP unit is factory set, the station address of
the PROFIBUS-DP station must be set.
Basic unit GW display
EZ700 Flashing
EZ800 Flashing
EZD-CP8.. Flashing
J
Valid data is only transferred via PROFIBUS-DP to the
basic unit if the GW is displayed statically.