Omron NX-series User Manual page 105

BYTE 91 hex
BYTE 05 hex
Array of 'V'
octet
'a'
'r'
'A'
'A'
Octet 00 hex
BYTE 91 hex
BYTE 04 hex
Array of 'M'
octet
'e'
'm'
'B'
BYTE 28 hex
USINT 01 hex
BYTE 28 hex
USINT 02 hex
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
This example shows how to specify VarAA[1].MemB[1.2] for the following structure variable.
struct
{
UINT
BOOL
} VarAA[3]
Variable Name Specification Format
NX-series Communication Control Unit Built-in Function User's Manual (Z396)
0x91 0x04"MemB"
VarAA.memB[1.2] VAR://VarAA.member[1][2]
MemA;
MemB[10][10];
8 CIP Message Communications
ANSI Extended Symbol Segment
Length of variable name in bytes
Variable name
Pad
ANSI Extended Symbol Segment
Length of variable name in bytes
Variable name
Logical Segment (Member ID)
Array index for the first element
Logical Segment (Member ID)
Array index for the second element
0x28 0x01 0x28 0x02
8
8 - 9