1. Connect the MODBUS Network to the RS-485 Connector on the
E2 PIB board (Belden 8641 recommended).
2.
3. Position the three termination jumpers to the UP (terminated)
position to provide RS-485 termination at the E2.
4. Do not connect the shield of the MODBUS network to the E2 PIB
center terminal. Instead, use a 100 ohm ½ watt resistor to connect
the MODBUS cable shield to earth ground.
5. At each device, wire the MODBUS cable to the RS-485 +/- terminals
and connect the MODBUS shield to the pin termi nal.
6. Terminate the end of the MODBUS network at the last device on
the daisy chain with the MODBUS termination block (P/N 535-2711),
or by connecting a 150 ohm resistor between the MODBUS
+/- terminals.
For more information, please refer to the XR35CX user manual
- and the XR75CX user manual - P/N 026-1203 P/N 026-1210.
Note to wire the RS-485 +/- polarity at the E2 in the reverse of
the XR35CX or XR75CX device.
18
NOT TERMINATED TERMINATED
