Multimedia applications like high definition digital television push the manufacturers to increase available bandwidth mainly in Powerline Communication (PLC) links. Because of this needs in this work a PLC link control is developed to maximize the information rate meanwhile the bit error rate (BER) is maintained under a desired reference limit. The developed control system has a unique variable called minimal total distance and the feedback loop signal is estimated from the low-density parity check (LDPC) decoder iterations. These mentioned characteristics enable a fast and simple control scheme. In order to evaluate the control system behavior a complete Powerline (PL) link was modeled in a matrix form and simulated with a measured PL channel model and with an additive white Gaussian noise (AWGN) channel. The implemented PL link reaches 570Mbps in AWGN. Finally the BER control shows a good response under a severe random walk SNR channel variation.