设计一个炉温控制系统对热处理加工炉进行温度控制。当采集的数字量大于D0H（上限温度对应的数字量），切断温度控制开关进行降温；当采集的数字量小于50H（下限温度对应的数字量），接通温度控制开关，进行升温。并显示（超出上限温度或低于下限温度）对应的的温度值。-The design of a temperature control system for heat treatment furnace for temperature control processing. When the acquisition is greater than the number of D0H (upper limit of the temperature corresponding to the number of traffic), cut off to cool down the temperature control switch　when the acquisition is less than the number 50H (minimum temperature of the corresponding figures for the volume), connected to the temperature control switch for warming. And display (in excess of the ceiling below the lower limit temperature or temperature) the corresponding temperature value.