Appendices
A - 58
NX-series EtherNet/IP Coupler Unit User’s Manual (W536)
A-8 NX Objects
This section describes the NX objects that are implemented in the EtherNet/IP Coupler Unit.
These NX objects are exclusively for EtherNet/IP Slave Terminals.
You can read or write these objects with special instructions that are supported by the NJ/NX-series
CPU Units and NY-series Industrial PCs. The Read NX Unit Object (NX_ReadObj) instruction reads NX
objects, and the Write NX Unit Object (NX_WriteObj) writes NX objects. Refer to the instructions refer-
ence manual for the connected CPU Unit or Industrial PC for information on the instructions.
Refer to the manuals for the individual NX Units for details on the NX objects that are implemented by
each NX Unit.
This manual describes NX objects with the following format.
Items within the <> brackets are replaced with data. Each item has the following meaning.
A-8-1 NX Objects
A-8-2 Format of Object Descriptions
Index
(hex)
Subin-
dex
(hex)
Object name Default Data range Unit Data type Access
I/O
alloca-
tion
Data
attri-
bute
<Index> <Subin-
dex>
<Object name> <Default> <Data range> <Unit> <Data
type>
<Access> <I/O
alloca-
tion>
<Data
attri-
bute>
Item Description
Index This is the index of the object that is expressed as a four-digit hexadecimal number.
Subindex This is the subindex of the object that is expressed as a two-digit hexadecimal num-
ber.
Object name Object name. For a subindex, this is the name of the subindex.
Default This is the value that is set by default.
Data range For a read-only (RO) object, this is the range of the data that you can read. For a
read/write (RW) object, this is the setting range of the data.
Unit The unit is the physical units.
Data type The data type of the object.
Access This data tells if the object is read-only or read/write.
RO: Read-only
RW: Read and write
I/O allocation This tells whether I/O allocation is allowed.
Data attribute This is the timing when changes to writable objects are enabled.
Y: Effective after restart
N: Effective immediately
---: Write-prohibited
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