Chapter 4 Communications Control
4-4
4
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RS-485 1-to-N connection
Select “RS-485 multi” for COM setting connection mode.
Set the prefix with no duplication.
Terminator
OFF
HL-G1
Area:01
HL-G1
Area:02
HL-G1
Area:16
(Green)
transmission data:+SD
+SD -SD +RD -RD SG
(Sky Blue)
transmission data:-SD
(Orange)
reception data:+RD
(Yellow)
reception data:-RD
(Shield)
signal ground:SG(Note 2)
(Shield)
signal ground:SG(Note 2)
Terminator
OFF
Terminator
ON(Note 5)
(Green)
transmission data:+SD
(Sky Blue)
transmission data:-SD
(Orange)
reception data:+RD
(Yellow)
reception data:-RD
(Shield)
signal ground:SG(Note 2)
(Green)
transmission data:+SD
(Sky Blue)
transmission data:-SD
(Orange)
reception data:+RD
(Yellow)
reception data:-RD
RS-485 host device
(Note 7)
(Note 1) The transmission data cable and reception data cable are both twisted-pair
cables.
(Note 2) The shield is connected to the 0-V side of the power supply line inside
the sensor.
(Note 3)
Be sure to connect the signal ground.
(Note 4)
The sensor is of non-isolated type. Make sure that the potential difference between
the sensor and RS-485 connecting device does not exceed 4V. A difference in
potential in excess may cause the connecting device or the sensor to malfunction.
(Note 5) The sensor has a built-in terminating resistor.Be sure to turn ON the
terminating resistor of the terminating sensor.
(Note 6) Perform transition wiring for the transmission path.
(Note 7) Connect the wires according to the specification of the equipment.
Summary of Contents for HL-G1 A-C5 Series
Page 18: ...Introduction 16 ...
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