Specifying Variable Names In Request Paths - Omron NX-series User Manual

Segment Type Segment Type Segment Type Segment Type Segment Type Segment Type
7 7 6 6 5 5
1 1 1 0 0 0 0 0 0
Segment Sub-Type
4 3
0 0
1 0
A data segment is mainly used for an ANSI extended symbol segment.
This segment sub-type is used to read and write the values of variables.
ANSI Extended Symbol Segment
Segment Type Segment Sub Type
7 6 5 4
1 0 0 1
Symbol (ANSI)
7 6 5
8-3-5

Specifying Variable Names in Request Paths

Variable Names
A variable name is specified as a symbolic segment (ANSI extended symbol segment).
Variable Name Specification Format
BYTE 91 hex
BYTE
Length in BYTE
Array of :
octet
Variable_name
:
Octet
(pad)
Variable Names
Variable names are encoded in UTF-8.
NX-series Communication Control Unit Built-in Function User's Manual (Z396)
Segment Sub-Type Segment Sub-Type Segment Sub-Type Segment Sub-Type Segment Sub-Type Segment Sub-Type Segment Sub-Type Segment Sub-Type Segment Sub-Type Segment Sub-Type Segment Sub-Type Segment Sub-Type Segment Sub-Type
4 4 3 3 2 2 1 1 1 0 0 0
2 1 0
0 0 0 Simple Data Segment
0 0 1 ANSI Extended Symbol Segment
3 2 1 0 7 6
0 0 0 1
4 3 2 1 0
8 CIP Message Communications
Data Segment Data Data Segment Data Data Segment Data Data Segment Data Data Segment Data Data Segment Data Data Segment Data Data Segment Data Data Segment Data Data Segment Data Data Segment Data
Variable length Variable length Variable length Variable length Variable length Variable length Variable length Variable length Variable length Variable length Variable length Variable length Variable length Variable length Variable length
Meaning
Symbol Size
4
5 3 2 1 0
Symbol (ANSI)
7 6 5 4 3
ANSI Extended Symbol Segment
Length of variable name in bytes
Variable name encoded in UTF-8
00 hex. One byte is padded if the variable
name length is an odd number of bytes.
2 1 0
8
8 - 7