AH500 Programming Manual API 1805 Symbol: S ： Unit address Word Explanation: 1. The operand S should be within the range between 0 and 255. If the station address is 0, it indicates that the PLC broadcasts to all AC motor drives. Example: COM2 (RS-485) The PLC is connected to the VFD series AC motor drive (ASCII mode: SM210 and SM212 are OFF.). If the communication timeout occurs, the PLC retries the sending of the command. 6-408 Instruction code Operand Function RSTEF S Resetting the abnormal AC motor drives Device X Y M S T C HC D L SM SR E PR K 16# “$” DF S Pulse instruction 16-bit instruction (3 steps) 32-bit instruction - AH500 -