Com Settings; Terminating Resistor Selection - Panasonic HL-G1 A-C5 Series User Manual

Chapter 3 Function

3-3-8 COM Settings

Make COM settings through the control panel. No COM settings are possible with
serial communications commands.
 Terminating Resistor Selection
This function selects the terminating resistor for the sensor head connecting
to the host device over RS-422/485.
Be sure to select R3 if the system is connected to RS-422 equipment.
If a number of sensor heads are connected to RS-485 equipment, set R3 for the
terminating sensor and the rest of the sensors to OFF.
* The communication of the system, if unstable, may be improved by selecting R1
or R2.
Setting
OFF
3
*
● Setting Procedure
1
2
3
4
5
Turn OFF terminating resistors
R1 Terminating resistor R1
R2 Terminating resistor R2
R3 Terminating resistor R3
indicates the default value.
Display the "COM Setting" screen while
the system is in setting mode.
Press the [ENTER] key. The
"Terminating Resistor Selection" screen
will be displayed.
Press the [ENTER] key. The present
terminating resistor will be displayed.
Press the [UP]/[DOWN] key to change
the terminating resistor. (Example:
Changing the resistor to OFF.)
Press the [ENTER] key to determine the
terminating resistor.
Function
3-34
Panel display