Sharp DP-750 Manual de servicio Pagina 48

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48 Fieldbus ECO-Coupler 750-343
Operating System
WAGO-I/O-SYSTEM 750
PROFIBUS
3.1.3 Operating System
Once the node is configured in the software, the node address is set and the
node is wired properly, the power can be applied.
After switching on the supply voltage, the coupler performs a self-test of all of
the device functions, the I/O module and the fieldbus interface. If the power
supply is working correctly the I/O-LED is green. Following this the I/O
modules and the present configuration is determined, whereby an internal list
is generated. This list includes an input and an output area on which is
represented the fieldbus RAM of the protocol chip.
In the event of a fault the Coupler changes to the "Stop" condition. The
I/O-LED flashes red. After a fault free start up the Coupler changes to the
"Fieldbus start" status.
Fig. 3-7: Operating system 750-343 g012122e
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