LTMCU, LTMCUF, and LTMCUC

This chapter describes how to update the language in a TeSys T LTMCU display.

The first section of the LTMCU Language tab is the Language Package Selection, which allows you to choose the appropriate language package version for the LTMCU hardware in the TeSys Programmer Tool.

1. Select the LTMCU Language Version to be uploaded into the LTMCU from the drop-down menu, based on the specific hardware model of LTMCU to be programmed.

   

2. By default, English is the first language programmed into the LTMCU. To select a second language, use the Language #2 drop-down menu. Repeat this process to select a third language, using the drop-down menu for Language #3.

   
   • The second section of the LTMCU Language tab allows you to connect a PC to the LTMCU. This tab shows:
   • A diagram of the steps required to establish the connection between the LTMCU and a PC
   • How to connect the hardware to a PC
   • The language information previously loaded into the LTMCU
   

3. To establish the connection between a PC and the LTMCU successfully, go to connectivity settings and select HW1 if your LTMCU was manufactured before or on July 2015 or select HW2 if the manufacturing date is after July 2015 or if you have an LTMCUF or LTMCUC.

4. Select the appropriate serial port option from the drop-down menu, depending on how the connection is being established with the LTMCU, and click on the Connect button. This will display up to three languages loaded previously into the LTMCU.

5. To remove the language #2 and/or #3 that were previously loaded from the LTMCU, uncheck the box next to the languages. A check mark indicates the language is enabled and an empty checkbox indicates the language is disabled.

   

   The third section in the LTMCU Language tab shows the status of the upload for each language into the LTMCU.

   

6. To initiate the language package transfer process or to disable an existing language in the LTMCU, click on the Update button at the bottom right of the Update LTMCU section. The update normally takes several minutes.

   

7. After the update is completed, disconnect the LTMCU from your PC and connect it back to your TeSys T system and use as intended after updating.

   

The LTMR Calibration Tab is supported only for LTMR family devices.

The LTMR Calibration tab supports generated calibration files (.cal) from the TeSys and Karam Programmer Tools.

As with the other tabs, the LTMR Calibration tab is separated into two vertical panels, each panel encompassing one of the following features:

1. Fields and Status Log Box

2. Device connectivity, status, and functionality

   

   The first panel in the LTMR Calibration tab is the Fields and Status Log Box.

   1. The calibration tab fields show the values of the LTMR registers and the Read/Open calibration file with naming “LTMR_ProductSerialNumber.cal” and “LTMR_SerProductSerialNumber.cal.”

   2. Fields contain Checksum, Commercial Reference, Serial Number, Hardware Version, Current Scaling Factors, Power Factor, L1RMS, L2RMS, and L3RMS.

   3. The calibration tab fields are editable for performing write and save operations.

      Ensure the field values comply with the following standards:

      Checksum:

      • The value cannot be null or empty.

      • The value must be integers.

      Commercial Reference:

      • Numeric and alphabetic characters

      Serial Number:

      • Length must be 16 digits.

      • The value cannot be null or empty.

      • The value must be digits.

      Hardware version:

      • Length must be five digits.

      • The value cannot be null or empty.

      • The value must be digits.

      Current Scaling Factors:

      • Integer between 0 to 65535

      Power Factor:

      • Range => RANGE value 0 to 16000

      • Shift=> SHIFT value 0 to 3599

      LxRMS:

      • Range=> RANGE 0 to 16000

      • Scale=>SCALE 0 to 65535

      NOTE: A dialog pop up is displayed when a field value is not within the valid range.

   4. Status log box shows every operation status in calibration tab.

      

The second panel in the LTMR Calibration tab is Device connectivity, status and functionality.

1. The first text box is “Select Serial Port.” Select the appropriate serial port option from the drop-down menu, depending on how the connection is being established with the LTMR, and click on the connect button.

   

2. Read Calibration Register is a button used for reading calibration data from the device and displaying the calibration data in appropriate text fields, as well as showing the status log box message.

   

3. Write Calibration Register is a button used for writing the calibration data to the device. Performing the write operation, all text fields must be filled in with a particular range ( refer calibration field section).

1. The write operation checksum text field must be set to the same value as the device checksum in order to perform a write operation.

2. Checksum value is located in log file.

3. Perform the following steps to open log file:

   • Click on the Advanced Setting Tab.

   • Go to the “Log and Report Settings” Section.

   • Select Logging Level is “INFO.”

   • In the File location row click the "Open Log" button.

     

4. The Open Calibration File button is used for opening calibration (.cal) files. It displays the Calibration data in a text field.

   

5. The Save Calibration File button is used for saving calibration data from the text fields. The data is saved to a .cal file named "LTMR_ProductSerialNumber.cal" or "LTMR_SerProductSerialNumber.cal." where Product Serial Number is the serial number of the LTMR printed on the box.