Mitsubishi Electric FX3U-ENET User Manual page 32

3 SPECIFICATIONS
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2) Ethernet module
Data is sent and received in binary code.
Binary code
PLC
(2) When communicating using ASCII code, 1-byte binary code data is automatically
converted into 2-byte ASCII code data and then transmitted.
(Example)
Binary code data
15
H
(One byte)
1234
H
(Two bytes)
(3) The amount of data that can be communicated at one time between the Ethernet
module and an external device is determined by the function used and the
selected data code (binary/ASCII) settings.
The following shows the maximum sizes of communication data that can be sent
and received at a time with each data communication function.
Data communication function
Communication using MC protocol
Communication using fixed buffer
Sending/receiving by e-mail
PLC
Ethernet module
Commu-
nication
data
storage
BIN/ASCII
area
conversion
ASCII code data
31 ,35
H H
"1","5"
(Two bytes)
31 ,32 ,33
H H H
"1","2","3","4"
(Four bytes)
The maximum number of point that can be designated
with each command/instruction : Maximum of 32 words
Procedure exist 1017 words (Binary code)
No procedure
MELSEC-F
Binary code
ASCII code
,34
H
Exchangeable data size
508 words (ASCII code)
2046 bytes
Attached file : Maximum of 2048 words
or
Main text : Maximum of 256 bytes
External
device
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