Taring

When taring, the scales are set to zero using an arbitrary applied load; i.e. an offset correction is performed. This is necessary for the gross/net compensation of goods that cannot be weighed without a container that has a mass of its own.

The EL3356 supports two tarings; it is recommended to set a strong filter when taring.

• Temporary tare
  The correction value is NOT stored in the terminal and is lost in the event of a power failure.
  To this end the command “0x0001” is executed on CoE object 0xFB00:01 (binary dialog in the System Manager: “01 00”). This sets the tare object (0x8000:22) such that the display value is 0.
  Note: in the case of a device restart (INIT->OP) the tare is not deleted.
  In addition this tare can be executed via the control word:



• Permanent tare
  The correction value is stored locally in the terminal's EEPROM and is not lost in the event of a power failure.
  To this end the command “0x0002” is executed on CoE object 0xFB00:01 (binary dialog in the System Manager: “02 00”). This sets the tare object (0x8000:22) such that the display value is 0.

Local storage The values modified during the theoretical and practical calibration are stored in a local EEPROM. This can be written to up to 1 million time. In order to prolong the life of the EEPROM, therefore, the commands should not be executed cyclically.