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NX102-[][][][]

NX-Series NX1 CPU Units

NX102-[][][][]

Powerful functionality in a compact design

Item list of NX102-[][][][]

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last update: July 1, 2025

Electrical and Mechanical Specifications

Item Specification
Model NX102-[][][][]
Enclosure Mounted in a panel
Dimensions (mm) *1 72 × 100 × 90 mm (W×H×D)
Weight *2 390 g max.
Unit power
supply		 Power supply voltage 24 VDC (20.4 to 28.8 VDC)
Unit power
consumption *3		 5.80 W max.
Inrush current *4 For cold start at room temperature:
10 A max./0.1 ms max.
and
2.5 A max./150 ms max.
Current capacity of
power supply terminal
*5		 4 A max.
Isolation method No isolation: between the Unit power supply terminal and internal circuit
Power supply
to the NX
Unit power
supply		 NX Unit power supply
capacity		 10 W max.
NX Unit power supply
efficiency		 80%
Isolation method No isolation: between the Unit power supply terminal and NX Unit power supply
I/O Power Supply to NX Units Not provided *6
External
connection
terminal		 Communication
connector		 RJ45 for EtherNet/IP Communications × 2
RJ45 for EtherCAT Communications × 1
Screwless clamping
terminal block		 For Unit power supply input and grounding (Removable)
Output terminal
(service supply)		 Not provided
RUN output terminal Not provided
NX bus connector 32 NX Units can be connected

*1. Includes the End Cover, and does not include projecting parts.
*2. Includes the End Cover. The weight of the End Cover is 82 g.
*3. Includes an SD Memory Card. The NX Unit power consumption to NX Units is not included.
*4. The inrush current that occurs when the supplied power is changed to ON from a continuous OFF state.
      The inrush current may vary depending on the operating condition and other conditions. Therefore, select fuses,
      breakers, and external power supply devices that have enough margin in characteristic and capacity, considering
      the condition under which the devices are used.
      In particular, in case when you insert a switch to turn ON/OFF the DC power supplied from an external power supply, if
      the duration of an ON-OFF-ON cycle is one second or less, the inrush control circuit may not function, which cause an
      inrush current of approximately 30 A/0.3 ms.
*5. The amount of current that can be passed constantly through the terminal. Do not exceed this current value when you
      use a through-wiring for the Unit power supply.
*6. When the type of the I/O power supply to NX Units you use is the supply from NX bus, an Additional I/O Power Supply
      Unit is required. Refer to NX-series NX102 CPU Unit Hardware User’s Manual (W593) for details.

General Specifications

Item Specification
Enclosure Mounted in a panel
Grounding method Ground to less than 100 Ω.
Operating
environment		 Ambient operating
temperature		 0 to 55°C
Ambient operating
humidity		 10% to 95% (with no condensation)
Atmosphere Must be free from corrosive gases.
Ambient storage
temperature		 -25 to 70°C (excluding battery)
Altitude 2,000 m max.
Pollution degree 2 or less: Meets IEC 61010-2-201.
Noise immunity 2 kV on power supply line (Conforms to IEC 61000-4-4.)
Overvoltage category Category II: Meets IEC 61010-2-201.
EMC immunity level Zone B
Vibration resistance Conforms to IEC 60068-2-6.
5 to 8.4 Hz with 3.5-mm amplitude, 8.4 to 150 Hz, acceleration of 9.8 m/s2
100 min each in X, Y, and Z directions (10 sweeps of 10 min each = 100 min
total)
Shock resistance Conforms to IEC 60068-2-27.
147 m/s2, 3 times in X, Y, and Z directions
Battery Life 5 years (Power ON time rate 0% (power OFF))
Model CJ1W-BAT01 (sold separately)
Applicable standards *1 cULus, EU, UKCA, RCM, KC, NK, LR

*1. Refer to the consult your OMRON representative for the most recent applicable standards for each model.

Performance Specifications

Item NX102-
12[][] 11[][] 10[][] 90[][]
Processing
time		 Instruction
execution
times		 LD instruction 3.3 ns
Math instructions (for long
real data)		 70 ns or more
Programming Program
capacity *1		 Size 5 MB
Quantity Number of POU
definitions		 3,000
Number of POU
instances		 9,000
Memory
capacity
for variables
*2		 Retain
attribute		 Size 1.5 MB
Number of
variables		 10,000
No Retain
attribute		 Size 32 MB
Number of
variables		 90,000
Data types Number of data types 1,000
Memory for
CJ-series
Units (Can
be specified
with AT
specifications
for variables.)		 CIO Area 0 to 6,144 words
(CIO 0 to CIO 6,143) *3
Work Area 0 to 512 words
(W0 to W511) *3
Holding Area 0 to 1,536 words
(H0 to H1,535) *4
DM Area 0 to 32,768 words
(D0 to D32,767) *4
EM Area 32,768 words × 25 banks
(E0_0 to E18_32,767) *4 *5
Motion
control		 Number of
controlled
axes *6		 Maximum number of
controlled axes		 15 axes 4 axes
Motion control
axes		 11 axes ---
Single-axis
position
control axes		 4 axes
Maximum number of used
real axes		 12 axes 8 axes 6 axes 4 axes
Used motion
control servo
axes		 8 axes 4 axes 2 axes ---
Used single-
axis position
control servo
axes		 4 axes
Maximum number of axes for
linear interpolation axis
control		 4 axes per axes group ---
Number of axes for circular
interpolation axis control		 2 axes per axes group ---
Maximum number of axes groups 8 axes groups ---
Motion control period The same control period as that is used for the
process data communications cycle for EtherCAT.
Cams Number of
cam data
points		 Maximum points
per cam table		 65,535 points
Maximum points
for all cam
tables		 262,140 points
Maximum number of cam
tables		 160 tables
Position units Pulse, mm, μm, nm, degree, and inch
Override factors 0.00%, or 0.01% to 500.00%
Built-in
EtherNet/IP
port		 Number of ports 2
Physical layer 10BASE-T/100BASE-TX
Frame length 1,514 bytes max.
Media access method CSMA/CD
Modulation Baseband
Topology Star
Baud rate 100 Mbps (100BASE-TX)
Transmission media STP (shielded, twisted-pair) cable of Ethernet
category 5, 5e or higher
Maximum transmission distance between
Ethernet switch and node		 100 m
Maximum number of cascade connections There are no restrictions if an Ethernet switch is used.
CIP service:
Tag data links
(cyclic com-
munications)		 Maximum number of
connections		 32 per port
64 total
Packet interval *7 Can be set for each connection.
1 to 10,000 ms in 1-ms increments
Permissible communications
band		 12,000 pps *8 *9 (including heartbeat, CIP Safety
routing)
Maximum number of tag sets 32 per port
40 total *10
Tag types Network variables
CIO/WR/HR/DM/EM
Number of tags per
connection (i.e., per tag set)		 8 (7 tags if Controller status is included in the tag set.)
Maximum number of tags 256 per port
512 total
Maximum link data size per
node (total size for all tags)		 19,200 bytes per port
38,400 bytes total
Maximum data size per
connection		 600 bytes
Maximum number of
registrable tag sets		 32 per port
40 total *10
(1 connection = 1 tag set)
Maximum tag set size 600 bytes (Two bytes are used if Controller status is
included in the tag set.)
Multi-cast packet filter *11 Supported.
CIP message
service:
Explicit
messages		 Class 3 (number of
connections)		 32 per port
64 total
(clients plus server)
UCMM
(non-
connection
type)		 Maximum
number of
clients that
can
communicate
at one time		 32 per port
64 total
Maximum
number of
servers that
can
communicate
at one time		 32 per port
64 total
CIP
Safety
routing		 Maximum number of
routable CIP Safety
connections		 16 total
Maximum routable
safety data length
per connection		 32 bytes
Number of TCP sockets 60
Secure
Socket
Service		 Maximum number of
Secure Socket		 60
TLS Version 1.2
OPC UA
Server		 Support profile/Model Embedded 2017 UA Server Profile
PLCopen Information Model 1.00
Default Endpoint/Port opc.tcp://192.168.250.1:4840/
Maximum number of sessions
(Client)		 5
Maximum number of
Monitored Items per server		 2,000
Sampling rate of Monitored
Items (ms)		 0, 50, 100, 250, 500, 1000, 2000, 5,000, 10,000
(If set to 0 (zero), it is assumed that is set to 50.)
Maximum number of
Subscriptions per server		 100
Maximum number of variables
that can be published		 10,000
Maximum number of structure
definitions that can be
published		 100
Restrictions on variables
unable to be published		 • Variables whose size is over 60 KB
• Two-dimensional or higher structure arrays
　(global variables)
• Structures that include two-dimensional and
　 higher arrays (global variables)
• Structures with four or higher levels of nesting
• Unions
• Arrays whose index number suffix does no start
　from 0
• Arrays with 2,048 or more elements
　(global variables)
• Structures with 100 or more members
SecurityPolicy/Mode Select one of the following.
None
Sign - Basic128Rsa15
Sign - Basic256
Sign - Basic256Sha256
Sign - Aes128Sha256RsaOaep
Sign - Aes256Sha256RsaPss
SignAndEncrypt - Basic128Rsa15
SignAndEncrypt - Basic256
SignAndEncrypt - Basic256Sha256
SignAndEncrypt - Aes128Sha256RsaOaep
SignAndEncrypt - Aes256Sha256RsaPss
Application
Authentica-
tion		 Authentication X.509
Maximum
number of
storable
certifications		 Trusted certification: 32
Issuer certification: 32
Rejected certification: 32
User
Authentica-
tion		 Authentication You can set the following items.
User name/password/role *12
Anonymous
Built-in
EtherCAT
port		 Communications standard IEC 61158 Type12
EtherCAT master specifications Class B (Feature Pack Motion Control compliant)
Physical layer 100BASE-TX
Modulation Baseband
Baud rate 100 Mbps (100BASE-TX)
Duplex mode Auto
Topology Line, daisy chain, branching and ring *13
Transmission media Twisted-pair cable of category 5 or higher (double-
shielded straight cable with aluminum tape and
braiding)
Maximum transmission distance between
nodes		 100 m
Maximum number of slaves 64
Range of node addresses that can be set 1 to 192
Maximum process data size Input: 5,736 bytes
Output: 5,736 bytes *14
Maximum process data size per slave Input: 1,434 bytes
Output: 1,434 bytes
Communications cycle 1,000 to 32,000 μs (in 250-μs increments)
Sync jitter 1 μs max.
Unit
configura-
tion		 Units on
CPU Rack		 Maximum number of NX Units
that can be mounted to the
CPU Unit		 32
Maximum I/O data size that
can be allocated in the CPU
Unit		 Inputs: 8,192 bytes *15
Outputs: 8,192 bytes *15
Maximum number of NX Units for entire
controller		 432
Power supply Model A non-isolated power supply for DC input is built into
the CPU Unit.
Power OFF detection time 2 to 8 ms
Internal
clock		 Accuracy *16 At ambient temperature of 55°C:
-3.0 to +2.0 min error per month
At ambient temperature of 25°C:
-2.0 to +2.0 min error per month
At ambient temperature of 0°C:
-3.0 to +2.0 min error per month
Retention time of built-in capacitor At ambient temperature of 40°C: 10 days

*1. Execution objects and variable tables (including variable names)
*2. Memory used for CJ-series Units is included.
*3. The value can be set in 1-word increments. The value is included in the total size of variables without a Retain
      attribute.
*4. The value can be set in 1-word increments. The value is included in the total size of variables with a Retain attribute.
*5. It is not possible to use the maximum number of words simultaneously for all banks, because the memory capacity for
      variables with a Retain attribute is limited to 1.5 MB.
*6. For terminology, refer to the NJ/NX-series CPU Unit Motion Control User’s Manual (Cat. No. W507).
*7. Data will be refreshed at the set interval, regardless of the number of nodes.
*8. “pps” means packets per second, i.e., the number of communications packets that can be sent or received in one
     second.
*9. The allowable bandwidth varies depending on the RPI of the connection in use, the primary task period, and the
      number of ports simultaneously used for EtherNet/IP communications.
*10.When tag sets that exceed the total of 40 are set, a Number of Tag Sets for Tag Data Links Exceeded (840E0000 hex)
      occurs.
*11.As the EtherNet/IP port implements the IGMP client, unnecessary multi-cast packets can be filtered by using an
      Ethernet switch that supports IGMP Snooping.
*12.Roles can be set for the unit versions 1.64 or later of CPU Units.
*13.Ring topology is supported with the project version 1.40 or later.
      Slaves on a ring topology should support a ring topology. If Omron slaves, please see the user's manual of slaves.
*14.For project unit version earlier than 1.40, the data must be within four frames.
*15.You can check the I/O allocation status with the Sysmac Studio. Refer to the NJ/NX-series CPU Unit Software User’s
      Manual (Cat. No. W501) for how to check the I/O allocation status. Also, refer to the relevant manuals for specific
      Units for the maximum I/O data size per NX Unit.
*16.The values shown are values in continuous operation.

Function Specifications

Item NX102
Tasks Function I/O refreshing and the user program are
executed in units that are called tasks.
Tasks are used to specify execution
conditions and execution priority.
Periodically
executed tasks		 Maximum number of
primary periodic
tasks		 1
Maximum number of
periodic tasks		 2
Conditionally
executed tasks		 Maximum number of
event tasks		 32
Execution condition When Activate Event Task instruction is
executed or when condition expression for
variable is met
Programming POU
(Program
Organization
Unit)		 Programs POUs that are assigned to tasks
Function blocks POUs that are used to create objects with
specific conditions
Functions POUs that are used to create objects that
determine unique outputs for the inputs,
such as for data processing
Programming
languages		 Types Ladder diagrams *1 and structured text (ST)
Namespaces A concept that is used to group identifiers for
POU definitions
Variables External
access of
variables		 Network variables The function which allows access from the
HMI, host computers, or other controllers
Data types Basic data
types		 Boolean BOOL
Bit strings BYTE, WORD, DWORD, LWORD
Integers INT, SINT, DINT, LINT, UINT, USINT,
UDINT, ULINT
Real numbers REAL, LREAL
Durations TIME
Dates DATE
Times of day TIME_OF_DAY
Date and time DATE_AND_TIME
Text strings STRING
Derivative data types Structures, unions, enumerations
Structures Function A derivative data type that groups together
data with different variable types
Maximum number of
members		 2,048
Nesting maximum
levels		 8
Member data types Basic data types, structures, unions,
enumerations, array variables
Specifying member
offsets		 You can use member offsets to place
structure members at any memory locations
Unions Function A derivative data type that enables access to
the same data with different data types
Maximum number of
members		 4
Member data types BOOL, BYTE, WORD, DWORD, LWORD
Enumerations Function A derivative data type that uses text strings
called enumerators to express variable values
Data type
attributes		 Array
specifications		 Function An array is a group of elements with the
same data type. You specify the number
(subscript) of the element from the first
element to specify the element
Maximum number of
dimensions		 3
Maximum number of
elements		 65,535
Array specifications
for FB instances		 Supported
Range specifications You can specify a range for a data type in
advance.
The data type can take only values that are
in the specified range
Libraries User libraries
Motion
control		 Control modes Position control, velocity control, torque
control
Axis types Servo axes, virtual servo axes, encoder
axes, virtual encoder axes, PTP axes
Positions that can be managed Command positions and actual positions
Single axes Single-axis
position
control		 Absolute positioning Positioning is performed for a target position
that is specified with an absolute value
Relative positioning Positioning is performed for a specified
travel distance from the command current
position
Interrupt feeding Positioning is performed for a specified
travel distance from the position where an
interrupt input was received from an external
input
Cyclic synchronous
absolute positioning		 A positioning command is output each
control period in Position Control Mode
Single-axis
velocity
control		 Velocity control Velocity control is performed in Position
Control Mode
Cyclic synchronous
velocity control		 A velocity command is output each control
period in Velocity Control Mode
Single-axis
torque control		 Torque control The torque of the motor is controlled
Single-axis
synchronized
control		 Starting cam
operation		 A cam motion is performed using the
specified cam table
Ending cam
operation		 The cam motion for the axis that is specified
with the input parameter is ended
Starting gear
operation		 A gear motion with the specified gear ratio is
performed between a master axis and slave
axis
Positioning gear
operation		 A gear motion with the specified gear ratio
and sync position is performed between a
master axis and slave axis
Ending gear operation The specified gear motion or positioning
gear motion is ended
Synchronous
positioning		 Positioning is performed in sync with a
specified master axis
Master axis phase
shift		 The phase of a master axis in synchronized
control is shifted
Combining axes The command positions of two axes are
added or subtracted and the result is output
as the command position
Single-axis
manual
operation		 Powering the Servo The Servo in the Servo Drive is turned ON to
enable axis motion
Jogging An axis is jogged at a specified target
velocity
Auxiliary
functions for
single-axis
control		 Resetting axis
errors		 Axes errors are cleared
Homing A motor is operated and the limit signals,
home proximity signal, and home signal are
used to define home
Homing with
parameter		 The parameters are specified, the motor is
operated, and the limit signals, home
proximity signal, and home signal are used
to define home
High-speed homing Positioning is performed for an absolute
target position of 0 to return to home
Stopping An axis is decelerated to a stop
Immediately stopping An axis is stopped immediately
Setting override
factors		 The target velocity of an axis can be changed
Changing the
current position		 The command current position or actual
current position of an axis can be changed to
any position.
Enabling external
latches		 The position of an axis is recorded when a
trigger occurs
Disabling external
latches		 The current latch is disabled
Zone monitoring You can monitor the command position or
actual position of an axis to see when it is
within a specified range (zone)
Enabling digital cam
switches		 You can turn a digital output ON and OFF
according to the position of an axis
Monitoring axis
following error		 You can monitor whether the difference
between the command positions or actual
positions of two specified axes exceeds a
threshold value
Resetting the
following error		 The error between the command current
position and actual current position is set to
0
Torque limit The torque control function of the Servo
Drive can be enabled or disabled and the
torque limits can be set to control the output
torque
Slave Axis Position
Compensation		 This function compensates the position of
the slave axis currently in synchronized
control.
Cam monitor Outputs the specified offset position for the
slave axis in synchronous control.
Start velocity You can set the initial velocity when axis
motion starts
Axes groups Multi-axes
coordinated
control		 Absolute linear
interpolation		 Linear interpolation is performed to a
specified absolute position
Relative linear
interpolation		 Linear interpolation is performed to a
specified relative position
Circular 2D
interpolation		 Circular interpolation is performed for two
axes
Axes group cyclic
synchronous
absolute positioning		 A positioning command is output each
control period in Position Control Mode
Auxiliary
functions for
multi-axes
coordinated
control		 Resetting axes group
errors		 Axes group errors and axis errors are
cleared
Enabling axes groups Motion of an axes group is enabled
Disabling axes
groups		 Motion of an axes group is disabled
Stopping axes
groups		 All axes in interpolated motion are
decelerated to a stop
Immediately stopping
axes groups		 All axes in interpolated motion are stopped
immediately
Setting axes group
override factors		 The blended target velocity is changed
during interpolated motion
Reading axes group
positions		 The command current positions and actual
current positions of an axes group can be
read
Changing the axes in
an axes group		 The Composition Axes parameter in the
axes group parameters can be overwritten
temporarily
Common
items		 Cams Setting cam table
properties		 The end point index of the cam table that is
specified in the input parameter is changed
Saving cam tables The cam table that is specified with the input
parameter is saved in non-volatile memory in
the CPU Unit
Generating cam
tables		 The cam table is generated from the cam
property and cam node that is specified in
input parameters
Parameters Writing MC settings Some of the axis parameters or axes group
parameters are overwritten temporarily
Changing axis
parameters		 The axis parameters can be accessed or
changed from the user program
Auxiliary
functions		 Count modes You can select either Linear Mode (finite
length) or Rotary Mode (infinite length).
Unit conversions You can set the display unit for each axis
according to the machine
Acceleration/
deceleration
control		 Automatic
acceleration/
deceleration control		 Jerk is set for the acceleration/deceleration
curve for an axis motion or axes group
motion
Changing the
acceleration and
deceleration rates		 You can change the acceleration or
deceleration rate even during acceleration or
deceleration
In-position check You can set an in-position range and in-
position check time to confirm when
positioning is completed
Stop method You can set the stop method to the
immediate stop input signal or limit input
signal
Re-execution of motion control
instructions		 You can change the input variables for a
motion control instruction during execution
and execute the instruction again to change
the target values during operation
Multi-execution of motion control
instructions (Buffer Mode)		 You can specify when to start execution and
how to connect the velocities between
operations when another motion control
instruction is executed during operation
Continuous axes group motions
(Transition Mode)		 You can specify the Transition Mode for
multi-execution of instructions for axes group
operation
Monitoring
functions		 Software limits The movement range of an axis is monitored
Following error The error between the command current
value and the actual current value is
monitored for each axis
Velocity,
acceleration rate,
deceleration rate,
torque, interpolation
velocity,
interpolation
acceleration rate,
interpolation
deceleration rate		 You can set and monitor warning values for
each axis and each axes group
Absolute encoder support You can use an OMRON 1S-series
Servomotor or G5-series Servomotor with an
Absolute Encoder to eliminate the need to
perform homing at startup
Input signal logic inversion You can inverse the logic of immediate stop
input signal, positive limit input signal,
negative limit input signal, or home proximity
input signal
External interface signals The Servo Drive input signals listed below
are used.
Home signal, home proximity signal, positive
limit signal, negative limit signal, immediate
stop signal, interrupt input signal
Unit (I/O)
management		 EtherCAT
slaves		 Maximum number of slaves 64
Communi-
cations		 Secure Communications Function for secure communication with
support software
Built-in
EtherNet/IP
port		 Communications protocol TCP/IP, UDP/IP
TCP/IP
functions		 CIDR The function which performs IP address
allocations without using a class (class A to
C) of IP address
IP Forwarding The function which forwards IP packets
between interfaces
Packet Filter The function which checks the IP packet to
determine whether to receive and send it
based on the source IP address and TCP
port number
CIP
communica-
tions
service		 Tag data links Programless cyclic data exchange is
performed with the devices on the
EtherNet/IP network
Message
communications		 CIP commands are sent to or received from
the devices on the EtherNet/IP network
CIP Safety routing Routing function for CIP Safety on the
EtherNet/IP network. The endpoint of CIP
Safety is NX-SL5[]00 in the system
TCP/IP
applications		 Socket services Data is sent to and received from any node
on Ethernet using the UDP or TCP protocol.
Socket communications instructions are used
Secure Socket
service (Client)		 Establishes a TLS session with the TCP
protocol, and sends and receives arbitrary
data to and from the server and any node
on the Ethernet using instructions for
secure socket communication
FTP client Files are transferred via FTP from the CPU
Unit to computers or controllers at other
Ethernet nodes.
FTP client communications instructions are
used
FTP server Files can be read from or written to the SD
Memory Card in the CPU Unit from
computers at other Ethernet nodes
Automatic clock
adjustment		 Clock information is read from the NTP
server at the specified time or at a specified
interval after the power supply to the CPU
Unit is turned ON.
The internal clock time in the CPU Unit is
updated with the read time
SNMP agent Built-in EtherNet/IP port internal status
information is provided to network
management software that uses an SNMP
manager
OPC UA Server function The function to respond to requests from
clients on the OPC UA network
EtherCAT
port		 Supported
services		 Process data
communications		 A communications method to exchange
control information in cyclic communications
between the EtherCAT master and slaves.
This communications method is defined by
CoE
SDO
communications		 A communications method to exchange
control information in noncyclic event
communications between EtherCAT master
and slaves. This communications method is
defined by CoE
Network scanning Information is read from connected slave
devices and the slave configuration is
automatically generated
DC (Distributed Clock) Time is synchronized by sharing the
EtherCAT system time among all EtherCAT
devices (including the master)
Enable/disable settings for slaves The slaves can be enabled or disabled as
communications targets
Disconnecting/connecting slaves Temporarily disconnects a slave from the
EtherCAT network for maintenance, such as
for replacement of the slave, and then
connects the slave again
Supported
application
protocol		 CoE SDO messages of the CAN application can
be sent to slaves via EtherCAT
Communications instructions CIP communications instructions, socket
communications instructions, SDO message
instructions, no-protocol communications
instructions, FTP client instructions, Modbus
RTU protcol instructions, Modbus TCP
protcol instructions
System
management		 Event logs Function Events are recorded in the logs
Maximum
number of
events		 System event log 768 *2
[containing]
• For CPU Unit: 512
• For NX Unit without MPU: 256
Access event log 576
[containing]
• For CPU Unit: 512
• For NX Unit without MPU: 64
User-defined event
log		 512
Debugging Online
editing		 Single Programs, function blocks, functions, and
global variables can be changed online.
More than one operators can change POUs
individually via network
Forced refreshing The user can force specific variables to
TRUE or FALSE
Maximum
number of
forced
variables		 Device variables for
EtherCAT slaves		 64
MC Test Run Motor operation and wiring can be checked
from the Sysmac Studio
Synchronizing The project file in the Sysmac Studio and the
data in the CPU Unit can be made the same
when online
Differential monitoring You can monitor when a variable changes to
TRUE or changes to FALSE
Maximum number of monitored
variables		 8
Data tracing Types Single triggered
trace		 When the trigger condition is met, the
specified number of samples are taken and
then tracing stops automatically
Continuous trace Data tracing is executed continuously and
the trace data is collected by the Sysmac
Studio
Maximum number of simultaneous
data traces		 2
Maximum number of records 10,000
Sampling Maximum number of
sampled variables		 48
Timing of sampling Sampling is performed for the specified task
period, at the specified time, or when a
sampling instruction is executed
Triggered traces Trigger conditions are set to record data
before and after an event
Trigger conditions • When BOOL variable changes to TRUE or
FALSE
• Comparison of non-BOOL variable with a
constant. Comparison method:
Equals (=), Greater than (>), Greater than or
equals (≥), Less than (<), Less than or
equals (≤), Not equal (≠)
Delay You can set the percentage of sampling
before and after the trigger condition is met
Safety data
logging		 Function Records variables used in the safety
program of the Safety CPU Unit in a
chronological order
Targets Target Safety CPU
Unit		 NX-SL5[]00 *3
Target variable types Exposed variables and device variables
used in the safety program
Maximum number of
logged variables		 100
Data types SAFEBOOL, SAFEBYTE, SAFEWORD,
SAFEINT, SAFEDINT,BOOL, BYTE, WORD,
INT, DINT
Maximum logging
time		 480 s (Depends on logging interval)
Logging interval Select from minimum value which stores
from primary periodic task cycle or adds
constant number multiple (x1, x2, x3, x4) of
primary periodic task cycle *4
Maximum number of simultaneous
executions		 2
Simulation The operation of the CPU Unit is emulated in
the Sysmac Studio
Reliability
functions		 Self-
diagnosis		 Controller
errors		 Levels Major faults, partial faults, minor faults,
observation, information
User-defined errors User-defined errors are registered in
advance and then records are created by
executing instructions
Levels 8
Security Protecting
software
assets and
preventing
operating
mistakes		 CPU Unit names and serial IDs When going online to a CPU Unit from the
Sysmac Studio, the CPU Unit name in the
project is compared to the name of the CPU
Unit being connected to
Protection User program
transfer with no
restoration
information		 You can prevent reading data in the CPU
Unit from the Sysmac Studio
CPU Unit write
protection		 You can prevent writing data to the CPU Unit
from the Sysmac Studio or SD Memory Card
Overall project file
protection		 You can use passwords to protect .smc files
from unauthorized opening on the Sysmac
Studio
Data protection You can use passwords to protect POUs on
the Sysmac Studio
Verification of operation authority Online operations can be restricted by
operation rights to prevent damage to
equipment or injuries that may be caused by
operating mistakes
Number of groups 5
User Authentication This function authenticates each user
when Sysmac Studio is going online with
the Controller and restricts operation
according to the user's privileges.
Number of groups 5
Verification of user program
execution ID		 The user program cannot be executed
without entering a user program execution
ID from the Sysmac Studio for the specific
hardware (CPU Unit)
SD Memory
Card
functions		 Storage type SD Memory Card, SDHC Memory Card
Application Automatic transfer from SD
Memory Card		 When the power supply to the controller is
turned ON, the data that is stored in the
autoload directory of the SD Memory Card is
transferred to the controller
Program transfer from SD Memory
Card		 With the specification of the system-defined
variable, you can transfer a program that is
stored in the SD Memory Card to the
controller
SD Memory Card operation
instructions		 You can access SD Memory Cards from
instructions in the user program
File operations from the Sysmac
Studio		 You can perform file operations for controller
files in the SD Memory Card and read/write
standard document files on the computer
SD Memory Card life expiration
detection		 Notification of the expiration of the life of the
SD Memory Card is provided in a system-
defined variable and event log
Backing up
data		 SD Memory
Card backups		 Operating
methods		 CPU Unit front-
panel DIP switch		 You can perform backup, verification, and
restoration operations by manipulating the
front-panel DIP switch on the CPU Unit
Specification with
system-defined
variables		 You can perform backup, verification, and
restoration operations by manipulating
system-defined variables
SD Memory Card
Window in Sysmac
Studio		 Backup and verification operations are
performed from the SD Memory Card
Window of the Sysmac Studio
Special instruction The special instruction is used to backup
data
Protection Disabling backups to
SD Memory Cards		 Backing up data to a SD Memory Card is
prohibited
Safety Unit Restore from SD Memory Card Restores the data of the Safety CPU Unit
using the front-panel DIP switch on the
Safety CPU Unit and SD Memory Card
Sysmac Studio Controller backups The Sysmac Studio is used to backup,
restore, or verify controller data

*1. Inline ST is supported. (Inline ST is ST that is written as an element in a ladder diagram.)
*2. Up to 512 system logs for events in the CPU Unit and 256 system logs in the NX Unit can be recorded.
*3. When connected to a CPU rack.
*4. Minimum value fulfills all these conditions.
      • Larger than 5 ms
      • Constant number multiple of primary periodic task cycle

Function Specifications of the Database Connection CPU Units

Besides functions of the NX102-[][][][], functions supported by the NX102-[][]20 are as follows.

Item Description
NX102-1220 NX102-1120 NX102-1020 NX102-9020
Supported port Built-in EtherNet/IP port
Supported
DB
versions
*1 *2		 SQL Server by Microsoft 2012/2014/2016/2017/2019/2022
Oracle Database by Oracle 11g/12c/18c/19c/21c/23ai (23c)
DB2 for Linux, UNIX and
Windows by IBM		 9.7/10.1/10.5/11.1
MySQL Community Edition
by Oracle*3		 5.6/5.7/8.0
Firebird by Firebird
Foundation		 2.5
PostgreSQL by PostgreSQL
Global Development Group		 9.4/9.5/9.6/10/11/12/13/14/15/16
Number of DB Connections (Number of
databases that can be connected at the
same time)		 2 *4 *5
Instruction Supported operations The following operations can be performed by executing DB Connection
Instructions in the CPU Units:
Inserting records (INSERT), Updating records (UPDATE), Retrieving
records (SELECT), Deleting records (DELETE), Execute Stored
Procedure*6, and Execute Batch Insert*6
Max. number of instructions
for simultaneous execution		 32
Max. number of columns in
an INSERT operation		 SQL Server: 1,024
Oracle: 1,000
DB2: 1,000
MySQL: 1,000
Firebird: 1,000
PostgreSQL: 1,000
Max. number of columns in
an UPDATE operation		 SQL Server: 1,024
Oracle: 1,000
DB2: 1,000
MySQL: 1,000
Firebird: 1,000
PostgreSQL: 1,000
Max. number of columns in
a SELECT operation		 SQL Server: 1,024
Oracle: 1,000
DB2: 1,000
MySQL: 1,000
Firebird: 1,000
PostgreSQL: 1,000
Max. number of records in
the output of a SELECT
operation		 65,535 elements, 4 MB
Stored
procedure
call *6		 Supported
databases		 • SQL Server
• Oracle Database
• MySQL Community Edition
• PostgreSQL
Argument
(Sum of IN, OUT
and INOUT)		 Up to 256 variables*7
Return value One variable
Result set Supported
Spool function Not supported
Batch
insert
execution
*6		 Supported
databases		 • SQL Server
• Oracle Database
• MySQL Community Edition
• PostgreSQL
Supported data
size		 Less than 1,000 columns and upper limit (8 MB) of structure variable size
or less*8
Spool function Not supported
Max. number of DB Map
Variables for which a
mapping can be connected
*9		 SQL Server: 30*10
Oracle: 20*10
DB2: 20*10
MySQL: 20*10
Firebird: 15
PostgreSQL: 20*10
Run mode of the DB Connection Service Operation Mode or Test Mode
• Operation Mode: When each instruction is executed, the service actually
accesses the DB
• Test Mode: When each instruction is executed, the service ends the
instruction normally without accessing the DB actually
Spool function Used to store SQL statements when an error occurred and resend the
statements when the communications are recovered from the error
Spool capacity*11 192 KB
Operation Log function The following three types of logs can be recorded:
• Execution Log: Log for tracing the executions of the DB Connection
Service
• Debug Log: Detailed log for SQL statement executions of the DB
Connection Service
• SQL Execution Failure Log: Log for execution failures of SQL statements
in the DB
DB Connection Service Shutdown
function		 Used to shut down the DB Connection Service after automatically saving
the operation log files into the SD Memory Card
Encrypted
Communi-
cation		 Supported databases • SQL Server
• Oracle Database
• MySQL Community Edition
• PostgreSQL
TLS Ver. TLS 1.2

*1. SQL Server 2014, Oracle Database 12c and PostgreSQL 9.4 are supported by the DB Connection Service Version 1.02
     or higher.
     SQL Server 2016, MySQL 5.7, DB2 11.1 and PostgreSQL 9.5/9.6 are supported by the DB Connection Service Version
     1.03 or higher.
    SQL Server 2017 is supported by the DB Connection Service Version 1.04 or higher.
    Oracle Database 18c, MySQL Community Edition 8.0 and PostgreSQL 10 are supported by the DB Connection Service
    Version 2.00 or higher.
    You cannot use Oracle 10g with the DB Connection Service version 2.00 or higher.
    SQL Server 2019, Oracle Database 19c and PostgreSQL 11/12/13 are supported by the DB Connection Service
    Version 2.01 or higher.
    SQL Server 2022, Oracle Database 21c/23ai (23c) and PostgreSQL 14/15/16 are supported by the DB Connection
    Service Version 2.04 or higher.
*2. Connection to the DB on the cloud is not supported.
*3. The supported storage engines of the DB are InnoDB and MyISAM.
*4. When two or more DB Connections are established, the operation cannot be guaranteed if you set different database
      types for the connections.
*5. For the DB Connection Service Version lower than 1.04, Number of DB Connection is 1.
*6. The function is available for the DB Connection Service Version 2.00 or higher.
*7. Depends on members of a structure.
*8. Constrained by the memory capacity for variables. See the specifications for the memory capacity for variables.
*9. Even if the number of DB Map Variables has not reached the upper limit, the maximum total number of members of
      structures used as data type of DB Map Variables is 10,000.
*10.For DB Connection Service Version lower than 1.04, Max. number of DB Map Variables for which a mapping can be
      connected is 15.
*11.Refer to the NJ/NX-series Database Connection CPU Units User's Manual (Cat. No. W527) for the information.
Note: The extended support for databases has ended for the following DB versions.
         Please consider replacing the current database with a new version.

Item Discription
Microsoft Corporation: SQL Server 2008/2008R2
Oracle Corporation: Oracle Database 10g
Oracle Corporation: MySQL Community Edition 5.1/5.5
International Business Machines Corporation (IBM): DB2 for Linux, UNIX and Windows 9.5
Firebird Foundation Incorporated: Firebird 2.1
The PostgreSQL Global Development Group: PostgreSQL 9.2/9.3

last update: July 1, 2025

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