Mitsubishi Electric MELSEC iQ-RJ71C24-R2 - Page 418

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25 AUTOMATIC REMOVAL OF NULL CHARACTERS INCLUDED IN SEND DATA
25.5 NULL Characters Removal for Send Data using Bidirectional Protocol
Ex.
Example of data transmission after automatic removal of NULL characters using the bidirectional protocol
E
N
Q
A
C
K
N
A
K
C24
62
H
05
H
L
15
H
(0008H)
34
H
L
12
H
06
H
H
01
H
H
32
H
2
33
H
3
43
H
C
42
H
B
41
H
A
31
H
1
06
H
L
00
H
H
00
H
(H) (L)
08
H
(0043H)
00
H
43
H
(4241H)
42
H
41
H
(0033H)
00
H
33
H
(3231H)
32
H
31
H
Target device
Buffer memory (transmission area/reception area)
Head data Arbitrary data
(Data transmission)
Transmission data count
Data
length
Data
portion
Sum
check
code
Send
NULL
characters
automatic
deletion
Transmission data
Head data
(Transmitting a
response message)
Send
Error
code
When normal:000H
When abnormal: 1234H
Reception result
or