62
Basic Ethernet Board
No jumpers needed.
RS232 Board
e
- Normal operation.
f
- Slave display to RS232 from another meter.
g
- Pull-up resistor on RTS line.
Note:
Board is shipped with jumpers
e
and
g
installed
RS485 Board, Full Duplex Operation
b & d
- Installed on last meter in long cable run.
RS485 Board, Half Duplex
a & c
- Installed for half duplex operation.
d
- Installed on last meter in line with long cable runs.
Note:
Board is shipped with no jumpers installed.
RS485-Modbus Board, Full Duplex Operation
b & e
- Bias jumpers should be installed on 1 board.
a & d
- Installed on last meter in long cable run.
RS485-Modbus Board, Half Duplex Operation
b & e
- bias jumpers installed on 1 board.
c & f
- installed for half duplex operation.
a
- installed on last meter in line with long cable runs.
Note:
Board is shipped with no jumpers installed.
Modbus
b
a
c
d
e
RJ45
RJ45
f
Ethernet-to-RS485 Converter Board
& USB-to-RS485 Converter Board
Full Duplex Operation
No jumpers for short cable runs.
Add
b & d
for long cable runs.
Half Duplex Operation
a + c
for short cable runs.
Add
d
for long cable runs.
Summary of Contents for 800 plus
Page 63: ...63 SERIAL CONNECTION EXAMPLES ...