新日铁君津厂在改造热轧精轧系统电气控制部分时，也对精轧机板厚控制系统作了更新，采用绝对值AGC技术和动态设定控制，从而大大提高了热轧板厚控制精度。（1）绝对值AGC控制由过程控制传送的压下设定值和预测轧制荷重等测厚参数求出绝对值目标厚度，改变压下位置，使绝对值目 Nippon Steel Junjin plant in the transformation of the hot rolling finishing electrical control system, but also on the finishing mill thickness control system has been updated, the use of absolute value of AGC technology and dynamic set control, thereby greatly improving the hot-rolled thickness control accuracy . (1) Absolute value The AGC control determines the target thickness of the absolute value by the thickness setting parameters such as the set-down value and the predicted rolling load transmitted by the process control, changes the position of the press-down so that the absolute value