BYTE 91 hex ANSI Extended Symbol Segment
BYTE 05 hex Length of variable name in bytes
Array of
octet
'V' Variable name
'a'
'r'
'A'
'A'
Octet 00 hex Pad
BYTE 91 hex ANSI Extended Symbol Segment
BYTE 04 hex Length of variable name in bytes
Array of
octet
'M' Variable name
'e'
'm'
'B'
BYTE 28 hex Logical Segment (Member ID)
USINT 01 hex Array index for the first element
BYTE 28 hex Logical Segment (Member ID)
USINT 02 hex Array index for the second element
The variable name that is specified in the symbolic segment (ANSI extended symbol segment) must
be converted to a text string to pass it to the communications thread. The following conversion rules
apply
.
Specification Example for Structure Members and Array Elements
0x91 0x05“VarAA”0x00 0x91 0x04“MemB” 0x28 0x01 0x28 0x02
VAR://VarAA.member[1][2] VarAA.memB[1.2]
This example shows how to specify VarAA[1].MemB[1.2] for the following structure variable.
struct
{
UINT MemA;
BOOL MemB[10][10];
} VarAA[3]
V
ariable Name Specification Format
8 CIP Message Communications
8-45
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
8-4 Specifying Request Path
8
8-4-5 Specifying Variable Names in Request Paths
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