Fuji Electric FRENIC-AQUA series User Manual page 78

4.1.3 Descriptions of fields
[ 1 ] Command field
The table below shows command types.
command types.
Command
ASCII R Reads function code data (polling).
ASCII W Writes function code data (selecting).
ASCII A Writes function code data at high speed
(writing that does not wait for writing to be completed).
ASCII E Resets an alarm.
ASCII a Gives a frequency command (S01). *1
ASCII e Gives a frequency command (S05). *1
ASCII f Gives an operation command (S06). *1
ASCII g Reads the output frequency (M06). *1
ACCII h Reads the torque monitor (M07). *1
ASCII j Reads the output frequency (M09). *1
ASCII k Reads the operation status monitor (M14). *1
ASCII m Resets an alarm.
*1 The above commands "a" to "k" are used to read or write data in the function code data format
specified in parentheses.
[ 2 ] Data field
Standard frame
8
Special additional
data
Optional frame
All data, except for some special ones, are treated as 16 bits long. In the data field of the
communications frame, data is hexadecimal (0000
an ASCII code. Negative integer data (signed data) is treated as a complement of 2 of the
integer data without the sign.
- The alphabetic characters A to F of hexadecimal data must be uppercase.
- Set 0 in all the data fields of the request frame for polling.
- In selecting, the data field of the ACK frame will be undefined.
Table 4.11 Command formats
Description
9 10
Data's first Data's second
character character
9 10
Data's first Data's second
character character
4-11
The applicable frame is different among the
Applicable frame
Standard frame
Optional frame
11
Data's third
character
11
Data's third
character
− FFFF
), and each digit is represented by
H H
4.1 Messages
12
Data's fourth
character
12
Data's fourth
character