3-1-2
Indicators
The Additional NX Unit Power Supply Unit, Additional I/O Power Supply Unit, and I/O Power Supply
Connection Unit have indicators that show the current operating status of the NX Unit.
The following indicator patterns are available depending on the Unit types.
The appearance of the indicators has been changed for models released in or before September 2018
with lot numbers that represent the date of or after September 20, 2018. In this manual, those models
are shown with the indicators after the change. For details on the applicable models and the changes,
refer to Appearance Change of the Indicators on page
3-8.
Additional I/O
Power Supply Unit
I/O Power Supply
Connection Unit
Additional NX Unit
Power Supply Unit
(A)
(B)
Letter Name Function
(A) Model number indications Gives the model number of the NX Unit, without the prefix.
For example, PD1000 in the case of NX-PD1000.
(B) Indicators The indicator shows the current operating status of the NX Unit.
The following section describes the specifications of each indicator.
TS Indicator
This indicator shows the current status of the Additional NX Unit Power Supply Unit,
Additional I/O Power Supply Unit, or I/O Power Supply Connection Unit.
Also, it
shows the Unit’s communications status with the CPU Unit, with the
Communications Coupler Unit, or with the Communication Control Unit.
The following table lists the possible statuses for this indicator and what they mean.
3 Part Names and Functions
3-6
NX-series System Units User's Manual (W523)
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