Panasonic HL-G1 Series User Manual page 102

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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.
HL-G1
Area:01
Terminator
OFF
HL-G1
Area:02
Terminator
OFF
HL-G1
Area:16
Terminator
ON(Note 5)
(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.
RS-485 host device
+SD -SD +RD -RD SG
(Green)
transmission data:+SD
(Sky Blue)
transmission data:-SD
(Note 7)
(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
(Shield)
signal ground:SG(Note 2)
(Green)
transmission data:+SD
(Sky Blue)
transmission data:-SD
(Orange)
reception data:+RD
(Yellow)
reception data:-RD
(Shield)
signal ground:SG(Note 2)