Here what we wanna do currently, we have a S7-200 PLC with a HMI (TP 177). The PLC drive two sequences completely independent one after the other. with each instruction in the HMI. But to optimize, we wanna be able to do the 2 sequences in the same time. Is that the hmi may allow the display of two different sequences at the same time? We will probably have to buy a larger hmi.