Rice Lake SCT-30 - Manual (Page 11)

Introduction 7
Figure 1-3. RS-485 Serial Connection
If the RS-485 network is longer than 100 meters or baud rates higher than
9600 are used, connect two 120 ohm terminating resistors between the
‘+’ and ‘–’ terminal strip ends of the instruments farthest away. Should
there be different instruments or converters, refer to the specific manuals
to determine whether it is necessary to connect the above-mentioned
resistors.
1.4 Analog Output Type Selection
Set the indicated DIP switch with MODE.
By default, the instrument is calibrated to convert the load cell 0 - 10 mV to the
selected analog output value.
By modifying the type of analog output, calibration will be brought back
to default values.
DIP SWITCH
OPERATION MODE 1 2 3
OFF OFF OFF 0-5 V
OFF OFF ON 0-10 V
OFF ON OFF -5-5 V
OFF ON ON -10-10 V
ON OFF ON 4-20 mA (default)
ON ON OFF 0-20 mA
SCT-30 SCT-30 SCT-30
RS485 +
RS485 -
max 500 m
RS485 +
3 2 5
PC RS232
RX+
RX-
TX-
TX+
CONVLAU
24 Vcc
+
-
0
TX
RX
VIN
RS485 +
RS485 -
RS485 -
0 VDC
RS485 + RS485 -
0 VDC
RS485 + RS485 -
0 VDC
Note
Note