Fuji Electric FRENIC-VG Series - Standard Frame

5-20
5.2.3 Standard frame
Request frame [Host J Inverter]
0 1 2 3 4 5 6 7 8 9 12 13 14 15
SOH Station No. ENQ Command Type Function code No. SP Data ETX BCC
1 2 1 1 1 2 1 4 1 2 (byte)
Va lu e s
Byte Field
ASCII format Hexadecimal format
Description
0 SOH SOH 01
H
Transmission begins
1 '0' - '3', '9' 30
H
- 33
H
, 39
H
Inverter station address (Decimal: tens place)
2
Station No.
'0' - '9' 30
H
- 39
H
Inverter station address (Decimal: ones place)
3 ENQ ENQ 05
H
Transmission frame
Request command
'R' 52
H
Polling (read)
'W' 57
H
Selecting (write)
'A' 41
H
High speed response selecting (write) - Note 1
4 Command
'E' 45
H
Alarm reset
Function code type
'F' 46
H
Basic function
'E' 45
H
Terminal function
'C' 43
H
Control function
'P' 50
H
Motor 1
'H' 48
H
High level function
'A' 41
H
Motor 2, 3
'L' 4C
H
Elevator data
'U' 55
H
User function
'o' 6F
H
Option
'S' 53
H
Command data
5 Type
'M' 4D
H
Monitor data
6 '0' - '9' 30
H
- 39
H
Function code No. (Decimal: tens place)
7
Function code
No.
'0' - '9' 30
H
- 39
H
Function code No. (Decimal: ones place)
8 SP ' ' 20
H
Unused (fixed space)
9 '0' - '9', 'A' - 'F' 30
H
- 39
H
, 41
H
- 46
H
1
st
character (Hexadecimal: thousands place)
10 '0' - '9', 'A' - 'F' 30
H
- 39
H
, 41
H
- 46
H
2
nd
character (Hexadecimal: hundreds place)
11 '0' - '9', 'A' - 'F' 30
H
- 39
H
, 41
H
- 46
H
3
rd
character (Hexadecimal: tens place)
12
Data
'0' - '9', 'A' - 'F' 30
H
- 39
H
, 41
H
- 46
H
4
th
character (Hexadecimal: ones place)
13 ETX ETX 03
H
Transmission ends
14 '0' - '9', 'A' - 'F' 30
H
- 39
H
, 41
H
- 46
H
Sum-check 1 (Hexadecimal: tens place)
15
BCC
'0' - '9', 'A' - 'F' 30
H
- 39
H
, 41
H
- 46
H
Sum-check 2 (Hexadecimal: ones place)
Note 1: FRENIC-VG returns a response when the request is received, regardless of the write type.
With FRENIC-VG, both normal selecting (W) and high speed response selecting (A) are the same operation.
BCC target