Bronkhorst Modbus slave interface Manual do Utilizador descarregar pdf (Página 12)

BRONKHORST®

Bronkhorst offers special begin-termination connectors with the resistor network. This handles correct termination

but also gives a defined voltage on the Modbus D1 and D0 line for even more reliability of the bus system.

An end-terminator is also offered by Bronkhorst and handles correct termination ad the end of the bus.

Termination can be performed with special termination-connectors, offered by Bronkhorst.

Termination schematic

RJ45

M12

703297

Begin terminator

703298

End terminator

703515

Begin terminator

703321

End terminator

+15…24Vdc

RB1

976 Ohm

RT1

121 Ohm

RB2

392 Ohm

Modbus system

D1 Modbus (B/B’)

D0 Modbus (A/A’)

RT2

121 Ohm

Begin termination (RED)

End termination (BLACK)

Page 12 Modbus interface 9.17.035

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Bronkhorst Modbus slave interface Manual do Utilizador Página 12