Fuji Electric FRENIC-AQUA series User Manual page 71

2) Communications dedicated function codes
Command data:
Monitor data 1:
Monitor data 2:
Alarm data 1:
Alarm data 2:
and others
For further information about these codes, see Chapter 5 "Function Codes and Data Formats."
Byte Field
0 SOH SOH
1 Station 0 to 3
address
2 0 to 9
3 ACK ACK
4 Command
R
W
A
E
5 Function code
group *1
6 Function code 0 to 9
identification
number *1
7 0 to 9
8 Special SP
additional -
data
9 Data 0 to 9,
A to F
10
11
12
13 ETX ETX
14 BCC 0 to 9,
A to F
15
*1 A space (SP = 20
S code
M code
W code
X code
Z code
Table 4.3 ACK frame
Value
ASCII Hexadecimal
format format
01
H
30 to 33
H H
30 to 39
H H
06
H
52
H
57
H
41
H
45
H
30 to 39
H H
30 to 39
H H
20
H
2D
H
30 to 39
H H
41 to 46
H H
03
H
30 to 39
H H
41 to 46
H H
) will be set for an alarm reset command.
H
4-4
Description
Start of message
Station address of the inverter (decimal: ten's figure)
Station address of the inverter (decimal: one's figure)
Transmission response
Acknowledgement: There was no receiving or logical
error.
Answerback of request command
Polling (read)
Selecting (write)
High-speed response selecting (write)
Alarm reset
See Table 4.4-1.
Function code identification number (decimal: ten's
figure)
Function code identification number (decimal: one's
figure)
Fixed to "sp (space)" normally.
"-" for negative data
Data's first character (hexadecimal: thousand's figure)
Data's second character (hexadecimal: hundred's
figure)
Data's third character (hexadecimal: ten's figure)
Data's fourth character (hexadecimal: one's figure)
End of message
Checksum 1 (hexadecimal: ten's figure)
Checksum 2 (hexadecimal: one's figure)