DT4120 xx xx (PS)
18
20170324-V0
5.6. Connecting the RS232 Modbus communication
output (option).
The following figure shows the wiring plan, connecting the
RS232 Modbus communication output
(DT4120 xx xx RS2 xx):
Wiring plan, connecting
the RS232 output
(see also “Application
example”)
Be careful the polarity of
the cables.
The RS-232 Modbus communication output should be used
for short distance communication. The maximum distance is
< 10-15 m, it depends on the communication speed.
You can find useful information about the Modbus
communication at www.modbus.org.
1. Loosen terminal screws.
2. Insert the wire ends into the open terminals according to
the wiring plan.
3. Screw the terminal in.
4. Check the hold of the wires in terminals by pulling on
them firmly.
Summary of Contents for DT4120 Series
Page 1: ...DT4120 xx xx PS Temperature Resistance Potentiometer Meter Transmitter Operating Instructions...
Page 84: ...DT4120 xx xx PS 84 20170324 V0 10 2 Application example Analog output option...
Page 85: ...DT4120 xx xx PS 20170324 V0 85 RS232 communication interface option...
Page 86: ...DT4120 xx xx PS 86 20170324 V0 RS485 communication interface option...
Page 87: ...DT4120 xx xx PS 20170324 V0 87 RS485 bus topology...
Page 90: ...DT4120 xx xx PS 90 20170324 V0...
Page 91: ...DT4120 xx xx PS 20170324 V0 91...
Page 92: ......
