Hyundai N700E Instruction Manual page 109

N700E INSTRUCTION MANUAL
Communication sequence
The communication sequence is as follows
Frame start : Frame start is recognized by signal line data transmitted.
Frame completion : Frame completion is recognized by no data during correspond 4, 5-character time.
Frame 1: Transmit from external controller to inverter.
Frame 2: Indication reflects from inverter to external controller
Communication frame type and form
External controller transmit frame
Communication
number
Communication
number
Command
Parameter
Parameter
number
CRC Hi
CRC Lo
Inverter response frame
Communication
number
Communication
number
Command
Byte Number
Data 1
Data N
CRC Hi
CRC Lo
＊ Frame Size = 5 + Request parameter number x 2
External
Frame 1
controller
Inverter
Command Parameter
Description
Inverter
Communication
number
Frame type
Parameter
Request parameter
number
-
-
Byte
Order
Number
Description
Inverter
Communication
number
Frame type
Data Byte number
Parameter 1
Parameter N
-
-
Frame 2
Wait time
Parameter Count
Data size
1 byte 1~32
1 byte 0x03
1
2 byte
2
1
2 byte
2
1 byte Higher 8bit of 16bit CRC
1 byte Lower 8bit of 16bit CRC
• • • •
Data 1 Data N
Data size
1 byte 1~32
1 byte 0x03
1 byte Request parameter number x 2
2 byte Parameter value
2 byte Nth parameter value
1 byte Higher 8bit of 16bit CRC
1 byte Lower 8bit of 16bit CRC
9-2
CRC Hi CRC Lo
Specifications
st
byte : Group
nd
byte : Index (note1)
st
byte : 0x00
nd
byte : N(0x01~0x08)
CRC Hi CRC Lo
Specifications