Initialization Phase Of The Fieldbus Coupler - WAGO -I/O-SYSTEM 750 Technical Description, Installation And Configuration

3.1.4 Initialization Phase of the Fieldbus Coupler

The communication system can be commissioned after the PROFINET IO
system has been configured, the I/O devices have been installed and a name
has been given to the station.
After the power supply has been switched on, the fieldbus coupler initializes
the internal communication system. In the phase where the I/O LED flashes
red with 10 Hz, the arranged I/O modules are determined and are allocated to
the PROFINET IO process image according to the standard defaults of the bus
coupler. After a trouble free start that is displayed using a green lit "I/O" LED,
the coupler changes to the condition "Fieldbus start" where it then waits for
the connection build-up of the I/O controller. If the coupler upload procedure
was not carried out with success then the red I/O LED signals the cause of
failure through a flashing cycle. The cause of failures can be obtained in
chapter 3.1.9.1.
Fig. 3.1.4-6: Initialization phase
WAGO-I/O-SYSTEM 750
PROFINET IO
Initialization Phase of the Fieldbus Coupler
PROFINET IO 750-340 • 61
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