Dynalco UM-600 Universal Monitor Manual de usuario Pagina 17

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16
Modbus Communication
The unit also provides access to the internal registered values using the Modbus Protocol.
The diagram below shows the recommended connections to the removable connectors on
the back of the unit for either half-duplex or full-duplex (RS485).
Wiring is as follows:
PIN
Description
5 TD(A) **
6 TD(B) **
7 Jumper to PIN 5
8 Jumper to PIN 6
** A 120 ohm termination resistor may need to be installed across pins 5 & 6.
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