Mitsubishi Electronics fx3u FIXED BUFFER COMMUNICATION (WITH THE PROCEDURE EXIST , (5) End codes

6 - 12
MELSEC-F
FIXED BUFFER COMMUNICATION (WITH THE PROCEDURE EXIST
CONTROL METHOD)
6
6 - 12
(b) Communication using ASCII code
(Example)
(5) End codes
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.
36H
Maximum of 1016 words
Subheader
(H) (L)
Data length
setting
1 word (2 bytes)
Send/
receive
data
(Maximum of
508 words)
Data designation/
storage device
for sending/
receiving instructions
Command format
n+1
n+2
n + data length
setting
30H30H30H(H) to (L) (H) to (L) (H) to (L) (H) to (L)
ASCII-BIN conversion
n
(H) (L)
(H) (L)
Data length
n+1
n+2
Subheader
34
H
12
H
78
H
56
H
(H) to (L) (H) (L)
to
36
H
30
H
30
H
30
H
30
H
30
H
32
H
31
H
32
H
33
H
34
H
35
H
37
H
38
H
36
H
30
H