Communication Operation Presence/Absence And Data Format Types - Mitsubishi Electric 800 Series Instruction Manual

4.4.3

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.
Symbol Operation
Communication request is sent to
a the inverter in accordance with
the user program in the computer.
b Inverter data processing time
Reply data from
the inverter (Data
c
(a) is checked for
an error)
d Computer processing delay time
Answer from
computer in
e response to reply
data c (Data c is
checked for error)

In the communication request data from the computer to the inverter, 10 ms or more is also required after "no data error (ACK)". (Refer
to page 43.)

Reply from the inverter to the inverter reset request can be selected. (Refer to

At mode error, and data range error, C1 data contains an error code. (Refer to
with data format D.
36
PARAMETER
Operation Operation
command frequency
A, A1 A
With With
No error

C C
(Request
accepted)
With error
(Request D D
rejected)
10 ms or more
No error

Without Without
(No inverter
processing)
With error
(Inverter
Without Without
outputs c
again.)
Multi Parameter Inverter
command write
A2 A A
With With Without
C1 C C

D D D
Without (C) Without Without
F Without Without
page 47.)
page 57.) Except for those errors, the error is returned
Parameter
Monitor
reset read
B B
With With
E, E1,
E

E2, E3
D D

Without
Without (C)
(C)
F F