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6
FIXED BUFFER COMMUNICATION (WITH THE PROCEDURE EXIST
CONTROL METHOD)
Send/
receive
data
(Maximum of
508 words)
(Example)
(5) End codes
6 - 12
(b) Communication using ASCII code
Command format
36
30
H
Subheader
Data designation/
storage device
for sending/
receiving instructions
n
n+1
n+2
n + data length
setting
12
n+1
H
56
n+2
H
36
30
30
30
30
H
H
H
H
H
Subheader
For more details on the end codes added to a response when communicating
using fixed buffers, see Subsection 11.4.1.
End codes are stored in the communication status storage area of the buffer
memory.
(H) to (L)
(H) to (L)
30
30
H
H
H
Data length
setting
(H)
(L)
(H)
(L)
(H)
(L)
1 word (2 bytes)
34
H
78
H
30
30
32
31
32
H
H
H
H
H
(H)
Data length
MELSEC-F
Maximum of 1016 words
(H) to (L)
(H) to (L)
ASCII-BIN conversion
33
34
35
36
37
H
H
H
H
(L)
(H)
to
to
38
H
H
(L)
6 - 12
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