Mitsubishi Electric FX3U-ENET User Manual page 130

6 FIXED BUFFER COMMUNICATION (WITH THE PROCEDURE EXIST
CONTROL METHOD)
(3) Data length setting
(4) Text (command)
Data designation/
storage device
for sending/
receiving instructions
Send/
receive
data
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This value indicates the data size of the text (command) section.
POINT
The data length can be designated in the following range:
• Communication using binary code
• Communication using ASCII code
*1 Since data is sent/received as ASCII data, the communication data size is
approximately half of the data size when using binary code.
The format of the command/response when communicating using fixed buffers is
configured as follows.
(a) Communication using binary code
Command format
60 00
(L)
H H
Subheader
Data length
n
setting
(H)
n+1
(H)
n+2
(H)
n+3
n+ Data length
(H)
setting
1 word (2 bytes)
: Maximum of 1017 words
: Maximum of 508 words
Maximum of 1017 words
(H) (L) (H) (L) (H)
(L)
(L)
(L)
(L)
MELSEC-F
(*1)
(L) (H) (L) (H)
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