TECO L510S Series - Appendix 3 L510 s Communication protocol; 1. Communication Data Frame; 1.2 Data format ASCII MODE

App 3-1
Appendix 3 L510s Communication protocol
Modbus communication protocol
1. Communication Data Frame
L510s series inverter can be controlled by a PC or other controller with the Communication
protocol, Modbus ASCII Mode & Mode RTU, RS485 or RS232. Frame length maximum 80
bytes.
1.1 Hardware installation
** The network is terminated at each end with an external terminating resistor (120Ω，
1/4w)**
1.2 Data format ASCII MODE
STX(3AH) Start bit = 3AH
Address Hi
Communication Address(Station): 2-digit ASCII Code
Address Lo
Function Hi
Function Code (command): 2-digit ASCII Code
Function Lo
Command Start Address
Command Start byte: 4-digit ASCII Code
Command Start Address
Command Start Address
Command Start Address
Data length
The length of the command: 4-digit ASCII Code
Data length
Data length
Data length
LRC Check Hi
LRC Check Code: 2-digit ASCII Code
LRC Check Lo
END Hi
End Byte : END Hi = CR(0DH) , END Lo= LF(0AH)
END L