Product Link – PL522/523 – Installation Parameters Configure

Installation Parameters Configured for PL522 and 523

  1. Ensure that the correct steps have been taken to connect the computer with Cat ET software to the Product Link system. Refer to Systems Operation, “Configuration”.
  1. Click the “Connect” icon or click “File” on the menu bar. Click “Connect” from the selections on the pull-down menu in order to establish communication with the PL522 or 523.



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    “Select an ECM” Screen

  1. The PL523 device is listed as “Vital Information Management System (VIMS) Main Module” as the Cat Data Link connection is made with the gateway board within the device. Select “VIMS Main Module”or “Product Link” from the list of available ECMs. Refer to Illustration 1.
  1. Click “OK”.



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  1. Once you are connected, click the “Configuration Tool” icon or select “Service” from the menu. Click “Configuration” from the drop-down menu in order to view the configuration screen.



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    PL522 and 523 Configuration Screen

  1. Highlight “VIMS Main Module” and then click “Expand All”. Refer to Illustration 3.

    Note: Internet Protocol parameters should NOT be modified.

  1. Double click the desired parameter or select the desired parameter and click “Change”. A dialog box will appear. Also, a list will appear that will show all of the possible parameter values.
  1. Click “OK” after changing each parameter in order to return to the configuration screen.

ReferenceRefer to the “Machine Serial Number” portion of this section for information about the “Product ID” that is used in the PL522 and 523 system. Refer to Illustration 4 for an example of a machine serial number.

Machine Serial Number

The Machine Serial Number is used by the PL522 and 523 system for routing information by the machine and displaying information by the machine.

Note: The serial number for a non-Caterpillar machine can be any alphanumeric characters up to 17 characters long such as “147433789DBS”.




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(1) Caterpillars World Manufacturing Code (characters 1 – 3)

(2) Machine description (characters 4 – 8)

(3) Check character (character 9)

(4) Machine Indicator Section (MIS) or Product Sequence Number (characters 10 – 17). These characters were previously referred to as the Serial Number.

For Caterpillar machines, enter only the last eight characters of the “Machine Serial Number”. Refer to Illustration 4 for an example of a machine serial number. For Non-Caterpillar machines, enter the entire machine serial number.

First Quarter 2001, the Caterpillar Product Identification Number (PIN) changed from 8 characters to 17 characters. The “Product ID” that is required by the PL522 and 523 system is the last eight digits. Do not start the serial number with a space. Do not abbreviate the serial number. For example, “1AA00123″should not be shortened to “1AA123”. Do not use uppercase “O” instead of zero “0”. Refer to Item (4) in Illustration 4.

“Machine Maintenance Mode” Screen



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“Machine Maintenance Mode” Screen

The maintenance mode is used to prevent diagnostic and event messages from being reported when performing maintenance on the machine. This value should be reverted to “Off” after the servicing is complete. This value also reverts to “Off” after 12 calendar hours in order to ensure proper operation (long term) of the system. If an event or diagnostic does occur when the maintenance mode is active, the event is ignored until the maintenance mode is turned off. Remember to clear any diagnostic codes that were created during maintenance. If you do not remember, the diagnostic codes will be transmitted once the maintenance mode is turned off.

To disable the PLM from sending any diagnostic or event messages while performing maintenance, select the “On” value. To continue normal operation of the system after maintenance is done, select the “Off” (default) value.

“Synchronize Service Hour Meters” for PL522 and 523

The machine maintains a function that is called “Sync Clock”. In a PL522 or 523 system, the PL522 or 523 clock can be the master or the slave. This criteria is automatically determined by the priority that is provided to each ECM when the machine is designed. In most cases, the PL522 and 523 will not be the master ECM. If PL522 or 523 is not the master, use the “Synchronize” button to synchronize the PL522 or 523 SMH to the master ECM SMH. The PL522 or 523 can be the master ECM if the following scenarios occur:

  • No other ECM on the machine is SYNC clock capable/enabled as displayed in Cat ET.

  • No other ECM on the machine has a priority higher than Product Link. This priority cannot be changed and is automatically determined when the machine is first powered.



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“Synchronize Service Hour Meters” Screen

In order to perform the “Synchronize Service Hour Meters” function, select the “Service” menu, and “Synchronize Service Hour Meters” from the drop-down menu. When the PL522 or 523 is the master ECM, select the “Set Master Hours” button. Once the master hours have been set, click the”Synchronize” button in order to synchronize any other sync-clock capable/enabled ECM. Refer to Illustration 6.

Note: In order to change the SMH to a value lower than the current value, a factory password will be required.

Note: When a PL522 or a 523 is not the master ECM, the PL522 or 523 module will automatically sync to the master ECM hours if the difference is not greater than 50 hours. If the difference is greater than 50 hours, a MID 122 – EID 0861 – WCI 01 diagnostic will be generated in Cat ET indicating that a manual sync is required. In that instance, sync the hours (Service/Synchronize Service Meter Hours) unless the master ECM hours are incorrect.

If a PL522 or a 523 is not the master ECM, and the master ECMs hours are not correct, troubleshoot on machine side. Do not replace the PL522 or 523 module.