7
1.2.
Connection of RS-232 or RS-485
See the above list of flow meter serial port definitions.
1.3 Setting Up the 205i to Use Modbus RTU
Press Enter, when the > cursor appears type in your
entry. Press enter when done.
Input the Modbus address your 205i will be using
on your network. These numbers can be selected
from 0-65535; however Modbus only supports
1-255. The 205i has some reserved addresses you
can’t use; 13 (0DH ENTER), 10 (0AH Newline), 42
(2AH), and 38 (26H).
Press Enter, when the > cursor appears use the
and
keys to make your selection. Press
when done.
This window is used to setup the Modbus serial port
baud rates. Your choices are 9600, 19200, 38400,
56000, 57600, or 115200. This setting must match
the master and other slaves on your Modbus
network. The Parity is fixed at None, Data length
fixed to eight, Stop bit fixed at 1.
Default factory serial port parameters are: “9600, 8,
None, 1”.
PC
L N
E
AC 90
～
245V
DC+ DC-
DC10-36V
RL1 RL2
RELAY
OCT
+
OCT-
OCT OUT
AI1 AI2 GND
ANALOG IN
E UP+ UP-
E
DN+ DN-
TRANSDUCER
I+ I-
TX RX GND
A B
4-20mA RS232
RS485
5
2
3
IOIOI
TX to 3
RX to 2
GND to 5
RS485 network
A & B
Use GND if needed
Ne t wo r k I DN [ 4 6
8 8
RS- 2 3 2 Se t u p [ 6 2
9 6 0 0 , No n e
