In the cement industry, to encourage the delivery process, the cement bags need to be arranged first on the pallet. In this case PT. Holcim Indonesia Tbk. Cilacap factory uses a palletizer machine in the form of pockets of cement into a pallet cement bag. All the processes that occur in this palletizer and are referred to as HMI (Human Machine Interface). HMI becomes a process that displays all processes in the machine. Through the HMI we can control the parameters that exist, such as speed, coordinates, time delay, and the value of process in the machine. HMI at Palletizer originally branded Siemens with type SIPLUS HMI OP277. Obsolete and often the occurrence of damage to the HMI can be a problem because it can cause huge losses due to cessation of production processes in the area Palletizer. This allows HMI to be replaced by other HMI that is Magelis GTO 5310 manufactured by Schneider for the production process in Palletizer will not be disturbed if at any time there is a problem in HMI. The process of switching HMI from Siemens to Schneider is certainly not an easy task like "plug and play". Need to do the right programming on HMI. Instead of creating variable lists, alarm lists, image lists and other resources. Then converted from an old program on the SIMATIC WIN CC software to a new program on the Vijeo Designer software. After the program is finished, the next step is a logical test process, namely the quality control process so that the new program can produce such an old program. The possible result of this HMI conversion is to reduce the HMI frequency and facilitate the operator in the HMI process and the processes that occur in the palletizer become more efficient and optimal.