LCD330 Instruction Book
14
RS485 Data Testing Continued
Using The RS485 Data Test Function
Note:
Before the RS485 data test will function correctly the
baud rate of the LCD330 needs to match that of the PTZ
control equipment. For instructions on setting the baud
rate of the test monitor see
page 7
.
1.
At the main menu press
‘5
’ to enter ‘
RS485 DATA TEST
’.
2.
On the PTZ controller send the command you wish to
analyse. For example move the joystick to the right.
3.
The hexadecimal values of the command will be
displayed on the screen of the LCD330.
4.
To return to the main menu press and hold the ‘
MENU
’
button for 1 second. The device will beep twice and
display the main menu.
Digital Multimeter
The digital multimeter function can be used to measure DC
voltage, AC voltage and resistance.
What Is Displayed?
DC and AC voltage measurements are displayed in volts and
the resistance is measured in ohms. The digital multimeter has
an auto range feature where the most appropriate unit is used
depending on measurement. e.g. Millivolt (mV), Volt (V).
Setting Up The Multimeter
To use the multimeter function you will need to connect the
two voltage probes supplied to the bottom of the unit. The
‘
Red
’ probe is connected to the ‘
VΩ
’ port and the ‘
Black
’ probe
is connected to the ‘
COM
’ port.
The locations of the LCD330’s connections are highlighted on
page 4
. All of the accessories supplied with the test monitor
are displayed on
page 5
.
Digital Multimeter continues on next page
