RIEVTECH STUDIO SOFTWARE MANUAL In the Rievtech Studio software, the corresponding bit address symbols are given according to the various connected devices. For the Rievtech PLC FBD_Serial, I represents the input address, C represents the cursor key address, Q represents the output address, F represents the digital flag address, M represents the block status address, and S represents the shift register bit address. As shown as below. If the address is not connected with the device after you input a specific address number, you should check whether the parameters (such as Device, Station No. and Address) are set correctly. For example, these parameters a reset as follows. 478