KMD-5205 and KMD-5270 Installation and Operation
Revision J
Installing the controllers
Modbus (optional)
19
Modbus end-of-line termination switches
The controllers on the physical ends of the Modus wiring segment must have
end-of-line termination installed for proper network operation. For the KMD
controllers the end-of-line termination is set with two switches located near the
RS-485 connector. Set the end-of-line termination to
On
using the
EOL
switches.
End-of-line termination for the connected Modbus devices may be set with
moveable jumpers or fixed resistors. Verify termination methods for the Modbus
devices in the manuals supplied with the Modbus devices.
Note
Set the end-of-line termination at the controllers where only one wire pair is
attached to the
A
and
B
terminals.
Illustration 2-5 End-of-line termination
Set end-of-line
termination to
On
in these controllers
only
