A-2
EtherNet/IP
Specifications
A-2-1
Assembly Memory Allocation
An explanation of the memory allocation of each Input Assembly (
V430-F
→ PLC) and each Output
Assembly (PLC → V430
-F
).
Small Input Assembly (Instance ID: 100)
It is a compact, lightweight input assembly. It is designed to hold 64 bytes of information in the Read
result. When reading multiple symbols, the Read strings are output delimited by Separator Characters.
The following table lists the Member Structure of the Small Input Assembly
Small Input Assembly
Member Structure
Member Name
Size (Bytes)
USER-DEFINED TAG ECHO
4
COMMAND ECHO
4
OUTPUT CONTROL ECHO
4
READ CYCLE SEQUENCE COUNTER
4
DECODE DATA LENGTH
4
DECODE DATA STRING
64
Total Size: 84 Bytes
Member Description
•
User-Defined Tag Echo
Returns the value set in the User-Defined Tag field of the Output Assembly (Legacy).
•
Command Echo
Returns the value set in the Command field of the Output Assembly (Legacy).
•
Output Control Echo
Returns the value set in the External Output field of the Output Assembly (Legacy).
•
R
ead Cycle Sequence Counter
Stores the current Read Cycle Count.
•
Decode
Data
Length
Stores the number of characters in the Read string.
•
Decode Data
String
Stores the Read string. When additional information such as Print Quality Grading Standard is set, it
is stored following the Read string.
Appendices
A - 3
V430-F Series Autofocus Multicode Reader User Manual for Communication Settings
A-2 EtherNet/IP Detailed Specifications
A
A-2-1 Assembly Memory Allocation