RIEVTECH STUDIO SOFTWARE MANUAL The “ Control Type ” refers to the action of the “ PLC Control ” . It includes “ Switch Basic Window ” , “ Report Current Window No. ” , “ Back Light Control ” , “ Execute Macro Instruction ” , “ Audio Control ” , “ Sheet Print ” , and “ Force Buzzer off ” . 4.10.2.9.1 Switch Basic Window You can switch the basic window of the HMI by changing the value of a register. 428