Function
*1
Initializing
PRO-
GRAM
mode
DEBUG mode
RUN mode
RESTORE
mode
*5
STOPPED RUN
NX bus communications
Possible
*2
Possible
*2
Possible
*2
Possible
*2
Possible
*2
Possible
*2
Safety process data com-
munications
Not possi-
ble
Not possi-
ble
Possible Possible Possible Not possi-
ble
Download-
ing (trans-
ferring data
from the
Computer to
the Control-
ler)
Configura-
tion infor-
mation (I/O
allocation
information)
Not possi-
ble
Possible Possible Possible Possible Not possi-
ble
Validated
safety appli-
cation data
Not possi-
ble
Not possi-
ble
Possible
*4
Uploading (Transferring
data from the Controller to
the Computer)
Not possi-
ble
Not possi-
ble
Not possi-
ble
Not possi-
ble
Possible Not possi-
ble
Clear All Memory operation
for Unit
Not possi-
ble
Possible Not possi-
ble
Not possi-
ble
Not possi-
ble
Not possi-
ble
Clear All Memory Opera-
tion for Slave T
erminal,
Clear All Memory Opera-
tion for NJ/NX-series CPU
Unit
*3
Not possi-
ble
Not possi-
ble
Not possi-
ble
Not possi-
ble
Not possi-
ble
Not possi-
ble
Restarting NX Bus/NX Unit Possible
Possible Possible Possible Possible Possible
Restarting Slave Terminal
and Resetting Controller
for NJ/NX-series CPU Unit
Possible Possible Possible Possible Possible Possible
Monitoring Controller sta-
tus
Not possi-
ble
Possible Possible Possible Possible Possible
Monitoring programs Not possi-
ble
Not possi-
ble
Possible Possible Possible Not possi-
ble
Monitoring in a Watch Tab
Page
Not possi-
ble
Not possi-
ble
Possible Possible Possible Not possi-
ble
Monitoring for trouble-
shooting
Not possi-
ble
Possible Possible Possible Possible Possible
Changing the safety pass-
word
Not possi-
ble
Possible Not possi-
ble
Not possi-
ble
Possible Not possi-
ble
Node Name Change Not possi-
ble
Possible Not possi-
ble
Not possi-
ble
Possible Not possi-
ble
Safety Data Logging
*5
Not possi-
ble
Not possi-
ble
Not possi-
ble
Not possi-
ble
Possible Not possi-
ble
Safety Unit Restore
*5
Not possi-
ble
Not possi-
ble
Not possi-
ble
Not possi-
ble
Not possi-
ble
Possible
Online Functional Test Not possi-
ble
Not possi-
ble
Not possi-
ble
Possible Possible Not possi-
ble
*1. Hardware Self-diagnosis
In the initializing state, self-diagnosis is performed for all hardware.
In other operating modes, hardware self-diagnosis is performed at fixed intervals.
*2. NX bus communications
The data is refreshed depending on the operating mode, as shown in the following table.
7 Checking Operation and Actual Operation
7 - 15
NX-series Safety Control Unit User's Manual (Z930)
7-3 Operating Modes of the Safety CPU Unit
7
7-3-3 Executable Functions in Each Mode of the Safety CPU Unit
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