I have a Q2406B (6.55) running an application and writing in A&D every minute, everything is OK until now, three days running without stop and the memory was erased, all the cells have nothing else… any cell i tried to read return empty (Not subscribe cell), if i write any cell, the Module return OK, but if i tried to read this cell, thats are empty(Not subscribe cell)… to back to normal, i have to restart the module and format the A&D…