Communication Port - Unitronics Vision OPLC V570-57-T34 Installation Manual

Vision™ OPLC™
Controller Power Supply
Earthing the Power Supply
To maximize system performance, avoid electromagnetic interference by:
 Mounting the controller on a metal panel.
 Earthing the controller's power supply: connect one end of a 14 AWG wire to the chassis
signal; connect the other end to the panel.
Note: If possible, the wire used to earth the power supply should not exceed 10 cm in length.
However, it is recommended to earth the controller in all cases.

Communication Port

This series comprises 2 RS232/RS485 serial ports and a CANbus port.
 Turn off power before making communications connections.
 Always use the appropriate port adapters.
Caution
The serial ports are type RJ-11 and may be set to either RS232 or RS485 via DIP switches, in
accordance with the table shown below.
By factory default, the port is set to RS232, termination ON.
 Use RS232 to download programs from a PC, and to communicate with serial devices
and applications, such as SCADA.
 Use RS485 to create a multi-drop network containing up to 32 devices.
Unitronics
Digital I/O Power Supply
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