GE IS200VCMIH2BCC Bus Master Controller BoardDescription The IS200VCMIH1BCC is a bus master controller developed by General Electric (GE) as part of the Mark VI control system. This controller is central to communication within the control system, facilitating seamless interaction between the controller, various I O boards, and the system control network, IONet. The VCMI plays a critical role in managing the VME bus, board IDs, and associated terminal boards, ensuring efficient and reliable