Access distributed i/o – Rockwell Automation 1794-OB16D FLEX I/O Diagnostic Modules User Manual User Manual

Page 93

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Publication 1794-UM061A-EN-P - July 2006

Configure your Digital Module on an EtherNet/IP Network

91

Access Distributed I/O

I/O information is presented as a structure of multiple fields, which depend
on the specific features of the I/O module. The name of the structure is based
on the location of the I/O module in the system. Each I/O tag is
automatically created when you configure the I/O module through the
programming software. Each tag name follows this format:

Location:SlotNumber:Type.MemberName.SubMemberName.Bit where:

This address variable:

Is:

Location

Identifies network location
LOCAL = local DIN rail or chassis
ADAPTER_NAME = identifies remote adapter or bridge

SlotNumber

Slot number of I/O module in its chassis

Type

Type of data
I = input
O = output
C = configuration
S = status

MemberName

Specific data from the I/O module; depends on the type of data the module can store

For example, Data and Fault are possible fields of data for an I/O module. Data is the common name for
values the are sent to or received from I/O points.

SubMemberName

Specific data related to a MemberName.

Bit (optional)

Specific point on the I/O module; depends on the size of the I/O module (0-31 for a 32-point module)

EXAMPLE

Example 2

Example 1

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