Vision120 OPLC™ User Guide
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RS485 Network Termination Settings
The jumper settings shown in Table 4 determine whether the controller can function as an
end device in a RS485 network. Note that the factory default setting is ON. If the OPLC is
not a network end device, set both jumpers to OFF.
RS232/RS485 Jumper Settings
The tables below show how to set a specific jumper to change the functionality of the
controller.
To open the controller and access the jumpers, refer to the instructions on the next page.
Table 3: RS232/RS485 Jumper Settings
COM 1 COM2
To use as: JP1 JP2 aaaaaaa To use as: JP5 JP6
RS232* A A RS232* A A
RS485 B B RS485 B B
Table 4: RS485 Termination Settings
COM 1 COM2
Termination JP3 JP4 aaaaaaa Termination JP7 JP8
ON* A A ON* A A
OFF B B OFF B B
• Default factory setting.
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