Monitoring 2# transform a considerable number of devices or systems engineering is still done by conventional instruments, including intelligent digital programmable controller, electric Ill type instrument, and even pneumatic unit combination instrument. The instrument has not only become increasingly aging, and high failure rate, is the unstable factors in the operation of the device, a threat even to the safety device. The instrument of backward technology has become a major obstacle to the device further tapping the potential synergies, does not meet the rapid development of control technology, computer technology, communication technology, and the requirement of modern factory management etc.. Therefore, the adoption of new technology implementation process control is the urgent matter, however, investing in a new larger funds need to invest DCS system. To save costs, and achieve the control system of the purpose of the reform, the leadership of the company in conjunction with the instrument workshop took out a set of technology and economy of the proposal, the conventional instrument Jieshou old DCS instead of 2# transform. Using the 2# transform of parking overhaul opportunity, through the instrument workshop employees for up to a week of fighting day and night, and finally completed the DCS transformation of the post of general instruments, and obtained a driving success. At present, 2# converter control room has a new look.