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1-50 3BSE 002 415R701 Rev A
and valves utilizing both ordering and indicating signals are joined with the control system in a
rational and uniform way. Figure 1-19 gives an example of application.
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The connection units and I/O boards are joined by prefabricated cables. Ribbon cable is used to
connect I/O boards intended for currents under 1 A and voltages under 60 V. Shielded cable is
used for signals particularly sensitive to interference.
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I/O boards
Connection
cable
MCB
Fuses
Terminals
Mounting bar
DI
DI
DI
DO
M
Contactor
Ready
Run
Trip
8 objects per row
Up to 8 rows in a cabinet
Motor object
Plug-in
connector
Connection unit
Process cable
DSDI 110ADSDO 115
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