Example Of Packet Element Data - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

Example of packet element data

The element processing procedures that can be set for the packets, the actual data examples, and others are shown below.
Length
■Process procedure
The Ethernet-equipped module processes the length with the following procedure.
[During send]
Length calculating result
123H
Conversion to
ASCII
hexadecimal
"0"(30H)
"1"(31H)
"2"(32H)
"3"(33H)
[During receive]
External device
"0123"
Data flow
Forward direction
30H
31H
32H
33H
33H
Reverse direction
33H
32H
31H
30H
30H
Byte swap
31H
30H
33H
32H
32H
Sending
33H 32H 31H 30H
Appendix 10 Operation Image and Data Structure of Predefined Protocol
Sending
"3210"
32H 31H 30H
"0123"
31H 32H 33H
"2301"
33H 30H 31H
Data flow
Forward direction
Conversion from ASCII hexadecimal to binary
30H
31H
"0123"
32H
33H
Reverse direction
33H
32H
"3210"
31H
30H
Byte swap
31H
30H
"1032"
33H
32H
External device
"0123"
"3210"
"1032"
Length calculation result
123H
3210H
1032H
APPX
A
401