Komatsu 830E-AC Shop Manual page 850

There are also many configuration and download
options available from this screen. The Connection
Menu is updated only when the connection is first
made. It does not update automatically. To view
changes made while connected, the user must close
the window and reconnect to the payload meter.
The connection menu is displayed after a serial con-
nection has been established and the PC software
has connected to the payload meter.
Connecting to the Payload Meter
Communications to the PLMIII requires a laptop
computer running the PDM software. The software
connects to the payload meter through the meter's
serial port #1. This is the same port used by the
speedometer/display gauge. When the laptop is
using the serial port, the lower display on the opera-
tor gauge on the dashboard will be blank. This does
not affect the operation of the speedometer.
• Connect the laptop to the system using the
EF9160 communications harness. The download
connector is typically located on the housing
mounted in the cab to the back wall. The PLMIII
system uses the same connection as the
Payload Meter II system.
Configure the Payload Meter
Configuration of the payload meter requires a serial
connection to the PLMIII system. Clicking the "Con-
figure Payload Meter" button will bring up the Truck
Configuration screen and menu. This screen displays
the latest configuration information stored on the
payload meter.
When changes are made to the configuration, the
"Save Changes" button must be pressed to save the
changes into the payload meter. To confirm the
changes, exit to the main menu and re-connect to the
payload meter.
M20-22
Setting the Date and Time
The time shown on the form is the time transmitted
from the payload when the connection was first
established.
The date and time are maintained by a special chip
on the PLMIII circuit board. The memory for this chip
is maintained by a very large capacitor when the
power is removed from the payload meter. This will
maintain the date and time settings for approximately
30 days. After this time, it is possible for the payload
meter to lose the date and time setting. It is recom-
mended that the system be powered every 20 days
to maintain the date and time. If the date and time is
lost, simply reset the information using this proce-
dure. It takes approximately 90 minutes to recharge
the capacitor.
Changing the date and time will affect the haul cycle
in progress and may produce unexpected results in
the statistical information for that one haul cycle.
To change the time:
1. Click on the digit that needs to be changed.
2. Use the up/down arrows to change or type in
the correct value.
3. Press the "Save Changes" button to save the
new time in the payload meter.
To change the date:
1. Click on the digit that needs to be changed.
2. Type in the correct value or use the pull-down
calendar to select a date.
3. Press the "Save Changes" button to save the
new time in the payload meter.
Payload Meter III 02/05 M20008