Mitsubishi Electric FR-A700 Technical Manual page 411

(3) Communication operation presence/absence and data format types
• Data communication between the computer and inverter is made in ASCII code (hexadecimal code).
• Communication operation presence/absence and data format types are as follows:
No. Operation
Communication request is sent to the
1) inverter in accordance with the user
program in the computer.
2) Inverter data processing time
Reply data from the
3) inverter (Data 1) is
checked for error)
4) Computer processing delay time
Answer from
computer in
response to reply
5)
data 3).
(Data 3) is checked
for error)
*1 In the communication request data from the computer to the inverter, 10ms or more is also required after "no data error
(ACK)". (Refer to page Refer to page 447)
*2 Reply from the inverter to the inverter reset request can be selected. (Refer to page 452)
*3 When any of "0.01 to 9998" is set in [Pr.37] and "01" is set in the instruction code HHF in
E2. In addition, data formats are always A2 and E2 for read or write of [Pr.37].
*4 At mode error, and data range error, C1 data contains an error code. (Refer to page 458) Except for those errors, the error is
returned with data format D.
*5 Multi command is available only in
• Data writing format
Communication request data from the computer to the inverter 1)
Format
1 2 3
Inverter
ENQ
A
station
*1
number *2
Inverter
ENQ
A1
station
*1
number *2
Inverter
ENQ
A2
station
*1
number *2
Inverter
ENQ
A3
station
*1
number *2
Reply data from the inverter to the computer 3) (No data error detected)
Format
1 2 3
Inverter
ACK
C
station
*1
number *2
Inverter
STX
C1
station
*1
number *2
Run
Command
A, A1
Present
No error *1
(Request C
accepted)
With error
(Request D
rejected)
No error *1
(No inverter Absent
processing)
With error
(Inverter outputs Absent
3) again.)
.
D700
Number of Characters
4 5 6 7 8
Instruction
*3 Data
code
Instruction
*3 Data
code
Instruction
*3
code
Send
Receive
Instruction
*3 data data
code
type
type
Number of Characters
4 5 6 7
*4
Send Receive
Error Error
data data
code 1 code 2
type type
Operation Multi Parameter
Frequency command
*5
A, A2 *3 A3 A, A2 *3
Present Present Present
C C1*4
D D
10ms or more
Absent Absent (C) Absent
Absent F Absent
9 10 11 12 13
Sum
*4
check
Sum
*4
check
Data
Data1
8 9 10 11 12
Data1
445
PARAMETER
Inverter Parameter
Monitor
Write Reset
A B
Present Present
E, E1,
C C *2 E2, E3
*3
D D *2 D
Absent
Absent
(C)
Absent F
, data format is A2 or
E700 D700
14 15 16 17
Sum
*4
check
Sum
Data2
check
13 14 15 16 17
ETX Sum
Data2
*1 check
Read
B
Present
E, E2 *3
D
Absent (C)
F
2
18 19
*4
18 19
*4