For weighting system like tanks, bascules and balances, it's possible to use PLC mod. TCT500-AD, connected to load cells MTC series. Cells can be directly connected (3 or 4 supports, with or without lift-off protection) to only one TCT500 input (if the weight is well-balanced between the cells), or each cell can be connected to a different input (weight not well-balanced). In the last case, PLC will have to realize read weight balancing logic between the cells to visualize on the display the right information. 16 resolution bit for the weight, precision 10000 points. For cells calibration  a manual procedure of resetting tare and sample weight linearization has been realized.