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7 Digital Output Units
NX-series Digital I/O Unit User’s Manual (W521)
7-2 Specifications of I/O Data
7
7-2-1 Allocable I/O Data
7-2 Specifications of I/O Data
This section describes I/O data for the Digital Output Units.
This section describes the allocable I/O data in the Digital Output Unit.
An I/O entry mapping is assigned to the I/O allocation settings for the Digital Output Unit except the Unit
that supports output refreshing with specified time stamp.
In the Unit that supports output refreshing with specified time stamp, one I/O entry mapping for input
and one I/O entry mapping for output are assigned.
A specific I/O entry is assigned to the I/O entry mapping for each NX Unit model. These allocations are
fixed, so you cannot add others or change them.
An I/O entry means the I/O data described in this section. An I/O entry mapping means a collection of
I/O entries.
To assign the I/O allocation information of the NX Unit or Slave Terminal to an NJ/NX-series CPU Unit
or NY-series Industrial PC, use the I/O ports for the allocated I/O data.
However, for Slave Terminals, I/O ports may not be used depending on the type of communications
master or Communications Coupler Unit.
Refer to the user’s manual for the connected Communications Coupler Unit for details on how to use
I/O data for Slave Terminals.
z Two-point Output Units
7-2-1 Allocable I/O Data
NX Units in Free-Run Refreshing or Synchronous I/O Refreshing
Data name Description
Data
type
Default
value
I/O port
name
Index
Subin-
dex
Output Bit 00 The output set value for
output bit 00.
BOOL FALSE Output Bit 00 7000 hex 01 hex
Output Bit 01 The output set value for
output bit 01.
BOOL FALSE Output Bit 01 02 hex
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