BERNARD electric actuator can form different control system according to different operation site. The frequently-used circuit board includes the logic control panel, position control board, and the on-site hand operator, etc. In addition, the on-site bus control board, time control board and digital display board will be used in special application situation. The main types of logic control panel are CI2701, also called 2701 board. It is the main circuit board of INTEGRAL+, POSIGAM+.