TECO A510s - Data Format Frame; Data Frame for ASCII Mode; Data Frame for RTU Mode

4-330
Data Format Frame
Data Frame for ASCII Mode
STX(3AH) Start Bit = 3AH
Node Address Hi
Communication Address(Station):
2-digit ASCII Code
Node 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 Li = LF(0AH)
END Lo
Data Frame for RTU Mode
Master (PLC etc.) sends request to follower (inverter), and the follower sends a response to the master (PC, PLC).
The data received is illustrated here.
The data length varies depending on the command (Function).
Node Address
Function Code
DATA
CRC CHECK
Signal Interval
** The inverter response time is 10ms.
Node Address
00H: Broadcast to all the drivers
01H: to the No. 01 inverter
0FH: to the No.15 inverter
10H: to the No.16 inverter and so on...., max to No. 254 (FEH)
Function Code
03H: Read the register contents