MINEGEM Machine Control ; Guidance Products Local Area Radio Network Caterpillar

In order to follow this procedure:

• Confirm the fault condition exists

• Identify the conditions that may generate the fault

• Eliminate faults in order of the general cause

Note: In general, faults are caused by problems in the following order: physical damage, environmental damage, harness failure, component failure and Electronic Control Module (ECM) failure.

Perform the following:

• Set up the Automation Operator Station and locate and sponsor a machine.

ReferenceFor more information on setting up the Automation Operator Station, refer to Operation and Maintenance Manual, "Setting Up for Operation".

ReferenceFor more information on locating and sponsoring a machine, refer to Operation and Maintenance Manual, "Preparing for Operation".

This procedure determines the cause of a failure to connect to the site server computer. The error could be caused by:

• A fault in the Automation Operator Station computer rack, power supply, or network connections

• A faulty site server computer

Test Step 1. Check Power to the Automation Operator Station.

1. Check the power supply to the computer rack.

2. Check that the Uninterruptible Power Supply (UPS) (if equipped) is on.

3. Check power LED indicators for the site server computer, network switch, and any other components in the computer rack.

Expected Result:

Power should be on, UPS on and network switch power LED indicators illuminated.

Results:

• YES - All components powered. Proceed to Test Step 2.

• NO - Components are not powered.

  Repair: Check and fix power supply. Retest.

  STOP

• NO - UPS is off.

  Repair: Check power switches and cables. Switch on and replace if necessary, and retest.If the UPS remains off, then the UPS may be faulty. Replace the UPS. Retest.

  STOP

• NO - Network switch off.

  Repair: Check power switches and cables. Switch on and replace if necessary, and retest.If there is still no power on the network switch, then the network switch may be faulty. Replace the network switch. Retest.

  STOP

• NO - Site server computer power off.

  Repair: Check power switches and cables. Switch on and replace if necessary, and retest.If there is still no power on the site server computer, then the site server computer may be faulty. Replace the site server computer. Retest.

  STOP

Test Step 2. Check Network Switch Connections.

1. Locate the network switch in the Automation Operator Station computer rack.

2. Check the LED indicators for all network switch ports that should be connected. There should be a legend on the switch that indicates the color and function of the LED indicators. A solid LED color indicates a connection and a flashing LED indicator, which may be the same LED indicator, indicates data activity.

   Note: These indicators may be different for different network switches. Refer to the switch legend or documentation.

3. If there is no LED activity showing, then the port is not connected at this end or the remote end or connection has failed.

Expected Result:

All network connection LED indicators are illuminated or flashing for activity.

All cables undamaged and securely connected at each end.

Results:

• YES - All cables undamaged and securely connected at each end. Proceed to Test Step 3.

• NO - A network connection LED indicator for a port that should be connected is not illuminated. The LED indicator indicates that the switch cannot detect a functioning connection.

  Repair: Follow the steps:

  1. Check both ends of the network cable for a secure connection.

  2. Check the equipment at the other end of the connection for power and operation and replace if necessary.

  3. Check the network cable for damage and replace where necessary.

  4. Try a different port on the network switch. If the problem is fixed by using another port, then mark the original port as faulty and consider repairing or replacing the network switch.

     Note: The switch may be configured so that some ports must be used for specific functions, for example, connections within the Automation Operator Station or connections to Local Area Radio Network (LARN) areas. Consult any instructions or documentation with the switch and select an appropriate port.

  STOP

• NO - If any network cable is not securely connected then reseat the connector and retest.

  Repair: Replace the cable if there is any doubt about the connector.

  STOP

• NO - Network cable is damaged.

  Repair: Replace the cable and retest.

  STOP

Test Step 3. Shut Down the Site Server Computer.

1. Momentarily press the power button on the site server computer.

Expected Result:

Site server computer will shut down after a delay of one to 2 minutes.

Results:

• YES - Site server computer shuts down. Proceed to Test Step 4.

• NO - Site server computer does not shut down.

  Repair: Repeat the momentary button press and wait for two more minutes.If the site server computer still has not shut down, then hold the power button down for 5 seconds.If the site server computer still has not shut down, then remove the power cable.

  Proceed to Test Step 4.

Test Step 4. Power Up the Site Server Computer.

1. If the power cable to the site server computer has been removed, then reconnect the power cable.

2. Switch on the site server computer.

Expected Result:

Site server computer powers up, and there is a disk and network activity.

Results:

• YES - Site server computer powers up, and there is a disk and network activity. Proceed to Test Step 5.

• NO - Site server computer fails to power up.

  Repair: Check, and if necessary, replace the power cable, and retest.If the problem persists, then the site server computer is probably faulty and will need to be repaired or replaced.

  STOP

Test Step 5. Open the Site Server Computer Web Page.

1. Wait at least 2 minutes after powering up the site server computer.

Show/hide table



Illustration 1	g02067733
Home screen. Typical example.

2. From the operator console open a web browser and go to the site server computer web page at http://10.10.0.1/.

Expected Result:

The site server computer web page opens and displays the home screen.

Results:

• YES - The site server computer web page opens and displays the home screen. The site server computer is functioning.

  Repair: If the fault remains, check for a fault with the Automation Operator Station network or power supply. Refer to Troubleshooting, Testing, and Adjusting, "Local Area Radio Network Communications - Test" in this manual.

  STOP

• NO - The site server computer web page fails to open and displays an error.

  Repair: The error indicates the site server computer is probably faulty and will need to be repaired or replaced.

  STOP