SYSMAC CJ-series CJ2H CPU Units
Setting new standards in high-speed
• Small, Fast, Flexible:
Inheriting and improving CJ1 features, the CJ2 CPU Units
is the best choice for the machine control with high-speed
• Even more program memory and data memory.
• Superior high-speed control performance: LOAD instructions execute in 16 ns, SINE instructions in 0.59 μs.
• Maximum throughputs with High-speed interrupt function
• Efficient debugging through highly improved Data tracing
• Secure system from memory error brought by Memory Self-restoration Function
• The more advanced motion control by the lower cost: Synchronous Unit Operation
• Increased I/O throughput speed by Immediate refreshing instructions with direct processing.
• The standards are abbreviated as follows: U: UL, U1: UL (Class I Division 2 Products for Hazardous Locations), C: CSA, UC: cULus,
UC1: cULus (Class I Division 2 Products for Hazardous Locations), CU: cUL, N: NK, L: Lloyd, and CE: EC Directives.
• Contact your OMRON representative for further details and applicable conditions for these standards.
CJ2H CPU Units
Specifications Current consumption
Product LD Model Standards
name I/O capacity/Mountable Program Data memory capacity instruction 5V 24 V
Units (Expansion Racks) capacity execution
400K steps DM: 32K words CJ2H-CPU68
EM: 32K words × 25 banks
CJ2H 512K words
CPU Units 250K steps DM: 32K words CJ2H-CPU67
EM: 32K words × 15 banks
2,560 points / 40 Units 352K words UC1, N, L,
(3 Expansion Racks max.) 150K steps DM: 32K words 0.016 μs 0.42 * − CJ2H-CPU66 CE
EM: 32K words × 10 banks
100K steps DM: 32K words CJ2H-CPU65
EM: 32K words × 4 banks
50K steps DM: 32K words CJ2H-CPU64
EM: 32K words × 4 banks
* Add 0.15 A per Adapter when using NT-AL001 RS-232C/RS-422A Adapters.
Add 0.04 A per Adapter when using CJ1W-CIF11 RS-422A Adapters.
The following accessories come with CPU Unit:
End Cover CJ1W-TER01 (necessary to be mounted at the right end of CPU Rack)
End Plate PFP-M (2 pcs)
Serial Port (RS-232C) Connector Connector set for serial port connection (D-SUB 9-pin male connector)
CPU64 CPU65 CPU66 CPU67 CPU68
Enclosure Mounted in a panel
Grounding Less than 100 Ω
CPU Rack Dimensions 90 mm × 65 mm × 49 mm (H × D × W)
Weight 190 g or less
Current Consumption 5 VDC, 0.42 A
Ambient Operating Temperature 0 to 55°C
Ambient Operating Humidity 10% to 90% (with no condensation)
Atmosphere Must be free from corrosive gases.
Ambient Storage Temperature −20 to 70°C (excluding battery)
Altitude 2,000 m or less
Pollution Degree 2 or less: Conforms to JIS B3502 and IEC 61131-2.
Use Environment Noise Immunity 2 kV on power supply line (Conforms to IEC 61000-4-4.)
Overvoltage Category Category II: Conforms to JIS B3502 and IEC 61131-2.
EMC Immunity Level Zone B
Conforms to IEC60068-2-6.
Vibration Resistance 5 to 8.4 Hz with 3.5-mm amplitude, 8.4 to 150 Hz
Acceleration of 9.8 m/s2 for 100 min in X, Y, and Z directions (10 sweeps of 10 min each =
100 min total)
Shock Resistance Conforms to IEC60068-2-27.
147 m/s2, 3 times in X, Y, and Z directions (100 m/s2 for Relay Output Units)
Battery Life 5 years at 25°C
Applicable Standards Conforms to cULus, NK, LR and EC Directives.
CPU64 CPU65 CPU66 CPU67 CPU68
User Memory 50K steps 100K steps 150K steps 250K steps 400K steps
I/O Bits 2,560 bits
Overhead Processing Time Normal Mode: 100 μs
Execution Time Basic Instructions: 0.016 μs min.;
Special Instructions: 0.048 μs min.
Processing I/O Interrupts and Interrupt task startup time : 26 μs or 17 μs *
Speed External Interrupts Return time to cyclic task : 11 μs or 8 μs *
Interrupts * When High-speed interrupt function is used
Scheduled Interrupt task startup time : 22 μs or 13 μs *
Interrupts Return time to cyclic task : 11 μs or 8 μs *
* When High-speed interrupt function is used
Maximum Number of Connectable Units Total per CPU Rack or Expansion Rack: 10 Units max.;
Total per PLC: 40 Units max.
Maximum Number of Expansion Racks 3 max.
I/O Area 2,560 bits (160 words): Words CIO 0000 to CIO 0159
Link Area 3,200 bits (200 words): Words CIO 1000 to CIO 1199
Synchronous Data Refresh Area 1,536 bits (96 words): Words CIO 1200 to CIO 1295
CPU Bus Unit Area 6,400 bits (400 words): Words CIO 1500 to CIO 1899
CIO Area Special I/O Unit Area 15,360 bits (960 words): Words CIO 2000 to CIO 2959
DeviceNet Area 9,600 bits (600 words): Words CIO 3200 to CIO 3799
3,200 bits (200 words): Words CIO 1300 to CIO 1499
Internal I/O Area 37,504 bits (2,344 words): Words CIO 3800 to CIO 6143
Cannot be used for external I/O.
Work Area 8,192 bits (512 words): Words W000 to W511
Cannot be used for external I/O.
8,192 bits (512 words): Words H000 to H511
Holding Area Bits in this area maintain their ON/OFF status when PLC is turned OFF or operating mode is changed.
Words H512 to H1535: These words can be used only for function blocks. They can be used only for function
block instances (i.e., they are allocated only for internal variables in function blocks).
Read-only: 31,744 bits (1,984 words)
• 7,168 bits (448 words): Words A0 to A447
Auxiliary Area • 24,576 bits (1,536 words): Words A10000 to A11535 *
Read/write: 16,384 bits (1,024 words) in words A448 to A1471 *
* A960 to A1471 and A10000 to A11535 cannot be accessed by CPU Bus Units, Special I/O Units, PTs, and
Support Software that do not specifically support the CJ2 CPU Units.
Temporary Area 16 bits: TR0 to TR15
Timer Area 4,096 timer numbers (T0000 to T4095 (separate from counters))
Counter Area 4,096 counter numbers (C0000 to C4095 (separate from timers))
32k words *
DM Area words for Special I/O Units: D20000 to D29599 (100 words × 96 Units)
DM Area DM Area words for CPU Bus Units: D30000 to D31599 (100 words × 16 Units)
* Bits in the EM Area can be addressed either by bit or by word. These bits cannot be addressed by CPU Bus
Units, Special I/O Units, PTs, and Support Software that do not specifically support the CJ2 CPU Units.
32k words/bank × 25 banks max.: E00_00000 to E18_32767 max. *1 *2
*1. Bits in the EM Area can be addressed either by bit or by word. These bits cannot be addressed by CPU
Bus Units, Special I/O Units, PTs, and Support Software that do not specifically support the CJ2 CPU
EM Area *2. EM banks D to 18 cannot be accessed by CPU Bus Units, Special I/O Units, PTs, and Support Software
that do not specifically support the CJ2 CPU Units.
*3. Force-set/reset to the EM Area is enabled by specifying a start bank in parameter settings. (unit version
1.2 or higher)
32K words × 4 32K words × 4 32K words × 10 32K words × 15 32K words × 25
banks banks banks banks banks
When EM force-S/R Bank 0 to 3 Bank 0 to 3 Bank 0 to 9 Bank 0 to E Bank 0 to 18
Force-S/R function is used *3
Enabled When automatic
Banks address allocation Bank 3 Bank 3 Bank 6 to 9 Bank 7 to E Bank 11 to 18
IR0 to IR15
Index Registers These are special registers for storing PLC memory addresses for indirect addressing. (Index Registers can
be set so that they are unique in each task or so that they are shared by all tasks.)
Cyclic Task Flag Area 128 flags
Memory Card 128 MB, 256 MB, or 512 MB
PROGRAM Mode: Programs are not executed. Preparations can be executed prior to program execution in
Operating Modes MONITOR Mode: Programs are executed, and some operations, such as online editing, and changes to
present values in I/O memory, are enabled in this mode.
RUN Mode: Programs are executed. This is the normal operating mode.
Execution Mode Normal Mode
CPU64 CPU65 CPU66 CPU67 CPU68
Ladder Logic (LD),
Programming Languages Sequential Function Charts (SFC),
Structured Text (ST), and
Instruction Lists (IL)
Function Maximum number of definitions 2,048
Blocks Maximum number of instances 2,048
Type of Tasks Interrupt tasks (Power OFF interrupt tasks, scheduled interrupt tasks, I/O interrupt tasks, and external interrupt
Tasks Cyclic tasks: 128
Number of Tasks Interrupt tasks: 256
(Interrupt tasks can be defined as cyclic tasks to create extra cyclic tasks. Therefore, the total number of cyclic
tasks is actually 384 max.)
Type of Symbols • Local symbols: Can be used only within a single task in the PLC.
• Global symbols: Can be used in all tasks in the PLC.
• BOOL (bit)
• UINT (one-word unsigned binary)
• UDINT (two-word unsigned binary)
• ULINT (four-word unsigned binary)
• INT (one-word signed binary)
• DINT (two-word signed binary)
• LINT (four-word signed binary)
• UINT BCD (one-word unsigned BCD) *1
• UDINT BCD (two-word unsigned BCD) *1
• ULINT BCD (four-word unsigned BCD) *1
• REAL (two-word floating-point)
Data Type of Symbols • LREAL (four-word floating-point)
Symbols • CHANNEL (word) *1
(Variables) • NUMBER (constant or number) *1
• WORD (one-word hexadecimal)
• DWORD (two-word hexadecimal)
• LWORD (four-word hexadecimal)
• STRING (1 to 255 ASCII characters)
• TIMER (timer) *2
• COUNTER (counter) *2
• User defined data types (data structures) *3
*1. Cannot be used in Function blocks
*2. Can be used only in Function blocks
*3. Supported only when CX-Programmer version 9.0 or later is used
Maximum Size of Symbol 32k words
Array Symbols (Array Variables) One-dimensional arrays
Number of Array Elements 32,000 elements max.
Memory Capacity 8,000 words 16,000 words 32,000 words
(Up to 32k words × 25 banks when EM is specified in CX-Programmer)
Number of Samplings Bits = 31, one-word data =16, two-word data = 8, four-word data = 4
Sampling Cycle 1 to 2,550 ms (Unit: 1 ms)
Data ON/OFF of specified bit
Tracing Data comparison of specified word
Trigger Conditions Data size: 1 word, 2 words, 4 words
Comparison Method: Equals (=), Greater Than (>), Greater Than or Equals (≥), Less Than (<), Less Than or
Equals (≤), Not Equal (≠)
Delay Value −32,768 to +32,767 ms
File Memory Memory Card (128, 256, or 512 Mbytes) (Use the Memory Cards provided by OMRON.)
EM file memory (Part of the EM Area can be converted for use as file memory.)
Source/ Program sources, comments,
Comment program indexes, symbol tables Capacity: 3.5 Mbytes
Logical Ports Logical Ports 8 ports (Used for SEND, RECV, CMND, PMCR, TXDU, and RXDU instructions.)
for Commu- Extended Logical 64 ports (Used for SEND2, RECV2, CMND2, and PMCR2 instructions.)
Class 3 Connection Number of connections: 64
CIP Commu- Type
nications UCMM Maximum number of clients that can communicate at the same time: 32
Specification (Non-connection Maximum number of servers that can communicate at the same time: 40
Communi- Peripheral (USB) Port USB 2.0-compliant B-type connector
Baud Rate 12 Mbps max.
Transmission Distance 5 m max.
Serial Port Interface: Conforms to EIA RS-232C.
Communications Method Half-duplex
Synchronization Method Start-stop
Baud Rate 0.3, 0.6, 1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 57.6, or 115.2 (kbps)
Transmission Distance 15 m max.
A minimum cycle time can be set.
Minimum Cycle Time (0.2 to 32,000 ms; Unit: 0.1 ms)
The minimum cycle time setting can be changed in MONITOR mode.
Cycle Time The cycle time is monitored.
Management Cycle Time Monitoring (0.01 to 40,000 ms; Unit: 0.01 ms)
Background Processing Instructions with long execution times can be executed over multiple cycles to prevent
fluctuations in the cycle time.
Basic I/O Cyclic Refreshing Cyclic refreshing of Basic I/O Units, Special I/O Units, and CPU Bus Units
Units, Special I/O Immediate Refreshing I/O refreshing by immediate refreshing instructions
I/O Units, and Refreshing
CPU Bus Refreshing by IORF I/O refreshing by IORF instruction
Units Unit Recognition at Startup The number of units recognized when the power is turned ON is displayed.
The input response times can be set for Basic I/O Units. The response time can be
Input Response Time Setting increased to reduce the effects of chattering and noise at input contacts. The response
time can be decreased to enable detecting shorter input pulses.
Basic I/O All of the outputs on Basic I/O Units can be turned OFF when an error occurs in RUN or
Units Load OFF Function MONITOR mode.
Basic I/O Unit Status Monitoring Alarm information can be read from Basic I/O Units and the number of Units recognized
Unit (I/O) can be read.
Management Unit Restart Bits to Restart Units A Special I/O Unit or CPU Bus Unit can be restarted.
Special I/O The start of processing for all the specified Units can be synchronized at a fixed interval.
Units and Maximum number of Units: 10 Units
CPU Bus Synchronous Unit Operation (Only Units that support Synchronous Operation Mode can be used.)
Units Synchronous operation cycle: 0.5 to 10ms (default: 2 ms)
Maximum number of words for synchronous data refreshing: 96 words (total of all Units)
Automatic I/O Allocation at Startup I/O words can be automatically allocated to the Basic I/O Units that are connected in the
PLC to start operation automatically without registering Units into I/O tables.
Configuration The current unit configuration can be registered in I/O tables to prevent it from being
Management I/O Table Creation changed, to reserve words, and to set words.
Rack/Slot First Word Settings The first words allocated to a Units on the Racks can be set.
The status of I/O memory can be held when the operating mode is changed or power is
Holding I/O Memory when Changing Operating Modes turned ON. The forced-set/reset status can be held when the operating mode is changed
or power is turned ON.
File Memory Files (such as program files, data files, and symbol table files) can be stored in Memory
Card, EM File Memory, or Comment Memory.
Memory The user program and Parameter Area can be backed up to an internal flash memory
Management Built-in Flash Memory when they are transferred to the CPU Unit.
EM File Function Parts of the EM Area can be treated as file memory.
Storing Comments I/O comments can be stored as symbol table files in a Memory Card, EM file memory,
or comment memory.
EM Configuration EM Area can be set as trace memory or EM file memory.
Automatic File Transfer at Startup A program file and parameter files can be read from a Memory Card when the power is
Memory Program Replacement during PLC Operation The whole user program can be read from a Memory Card to CPU Unit during operation.
Function for Reading and Writing Data from a Memory Data in I/O memory in the CPU Unit can be written to a Memory Card in CSV/TXT format.
Card Data in CSV/TXT format in the Memory Card can be read to I/O memory in the CPU Unit.
Peripheral (USB) Peripheral Bus Bus for communications with various kinds of Support Software running on a personal
Port computer. High-speed communications are supported.
Serial Port −
Host Link commands or FINS commands placed between Host Link headers and terminators
Host Link (SYSWAY) Communications can be sent from a host computer or PT to read/write I/O memory, read/control the operating
mode, and perform other operations for PLC.
No-protocol Communications I/O instructions for communications ports (such as TXD/RXD instructions) can be used for
data transfer with peripheral devices such as bar code readers and printers.
I/O memory in the PLC can be allocated and directly linked to various PT functions, including
NT Link Communications status control areas, status notification areas, touch switches, lamps, memory tables, and
Peripheral Bus Bus for communications with various kinds of Support Software running on a personal
computer. High-speed communications are supported.
Serial Gateway This gateway enables receiving and automatically converting FINS to the CompoWay/F.
Scheduled Interrupts Tasks can be executed at a specified interval (minimum of 0.2 ms or 0.1 ms *, Unit: 0.1 ms).
* When High-speed interrupt function is used.
Power OFF Interrupts A task can be executed when CPU Unit's power turns OFF.
Interrupt I/O Interrupt Tasks A task can be executed when an input signal is input to an Interrupt Input Unit.
External Interrupt Tasks A task can be executed when interrupts are requested from a Special I/O Unit or a CPU Bus
High-speed Interrupt Function Improves performance for executing interrupt tasks with certain restrictions.
(Unit version 1.1 or later.)
Clock data is stored in memory.
Accuracy (Accuracy depends on the temperature.)
Clock Function Ambient temperature of 55°C: −3.5 to +0.5 min error per month
Ambient temperature of 25°C: −1.5 to +1.5 min error per month
Ambient temperature of 0°C: −3 to +1 min error per month
Operation Start Time Storage The time when operating mode was last changed to RUN mode or MONITOR mode is stored.
Operation Stop Time Storage The last time a fatal error occurred or the last time the operating mode was changed to
Clock PROGRAM mode is stored.
Startup Time Storage The time when the power was turned ON is stored.
Power Interruption Time Storage The time when the power is turned OFF is stored.
Total Power ON Time Calculation The total time that the PLC has been ON is stored in increments of 10 hours.
Power ON Clock Data Storage A history of the times when the power was turned ON is stored.
User Program Overwritten Time Storage The time that the user program was last overwritten is stored.
Parameter Date Storage The time when the Parameter Area was overwritten is stored.
Holding Area data, DM Area data, EM Area data, Counter Completion Flags, and counter
present values are held even when power is turned OFF. CIO Area, Work Area, some Auxiliary
Memory Protection Area data, and Timer Completion Flags, timer present values, index registers, and data
registers can be protected by turning ON the IOM Hold Bit in the Auxiliary Area, and by also
Power setting the IOM Hold Bit to “Hold” in the PLC Setup.
Supply The detection time for power interruptions can be set.
Management Power OFF Detection Time Setting AC power supply: 10 to 25 ms (variable)
DC power supply: 2 to 5 ms (CJ1W-PD022) or 2 to 20 ms (CJ1W-PD025)
Power OFF Detection Delay Time The detection of power interruptions can be delayed: 0 to 10 ms
(Not supported by the CJ1W-PD022.)
Number of Power Interruptions Counter The number of times power has been interrupted is counted.
Function Blocks Standard programming can be encapsulated as function blocks.
Languages in Function Block Definitions Ladder programming or structured text
Online Editing The program can be changed during operation (in MONITOR or PROGRAM mode), except for
block programming areas.
Specified bits can be set or reset.
Force-Set/Reset Force-set/reset to the EM Area is enabled by specifying a start bank in parameter setting.
(unit version 1.2 or higher)
Differentiate Monitoring ON/OFF changes in specified bits can be monitored.
The specified I/O memory data can be stored in the trace memory in the CPU Unit. The
Debugging triggers can be set.
• The trace data can be uploaded during data tracing using CX-Programmer, which enables
Data Tracing continuously logging the data by constantly uploading the trace data (trace data uploading
• Data tracing can be automatically started when operation is started (i.e., when the operating
mode is changed from PROGRAM mode to MONITOR or RUN mode).
Storing Location of Error when an Error Occurs The location and task number where execution stopped for a program error is recorded.
Program Check The programs can be checked for items such as no END instruction and FALS/FAL errors at
Error Log A function is provided to store predefined error codes in CPU Unit, error information, and time
at which the error occurred.
CPU Error Detection CPU Unit WDT errors are detected.
Errors can be generated for user-specified conditions: Non-fatal errors (FAL) and fatal errors
User-defined Failure Diagnosis (FALS).
Program section time diagnosis and program section logic diagnosis are supported (FPD
Load OFF Function This function turns OFF all outputs from Output Units when an error occurs.
RUN Output The RUN output from the CJ1W-PA205R turns ON while CPU Unit is in RUN mode or
Basic I/O Load Short-circuit Detection This function provides alarm information from Basic I/O Units that have load short-circuit
Failure Point Detection The time and logic of an instruction block can be analyzes using the FPD instruction.
CPU Standby Detection This function indicates when the CPU Unit is on standby because all Special I/O Units and
CPU Bus Units have not been recognized at the startup in RUN or MONITOR mode.
System FAL Error Detection This function generates a non-fatal (FAL) error when the user-defined conditions are met in
(User-defined non-fatal error) program.
Duplicate Refreshing Error This function detects an error when an immediate refreshing Instruction in an interrupt task is
Detection competing with I/O refreshing of a cyclic task.
Basic I/O Unit Error Detection This function detects the errors in Basic I/O Units.
Backup Memory Error This function detects errors in the memory backup of the user programs and parameter area
Detection (backup memory).
PLC Setup Error Detection This function detects setting errors in the PLC Setup.
Non-fatal Error CPU Bus Unit Error Detection This function detects an error when there is an error in data exchange between the CPU Unit
Detection and a CPU Bus Unit.
Special I/O Unit Error This function detects an error when there is an error in data exchange between the CPU Unit
Detection and a Special I/O Unit.
Battery Error Detection This function detects an error when a battery is not connected to the CPU Unit or when the
battery voltage drops.
CPU Bus Unit Setting Error This function detects an error when the model of a CPU Bus Unit in the registered I/O tables
Detection does not agree with the model that is actually mounted in the PLC.
Special I/O Unit Setting Error This function detects an error when the model of a Special I/O Unit in the registered I/O tables
Detection does not agree with the model of Unit that is actually mounted.
Self- Memory Error Detection This function detects errors that occur in memory of the CPU Unit.
diagnosis This function detects when an error occurs in data transfers between the Units mounted in
and I/O Bus Error Detection Rack slots and the CPU Unit and detects when the End Cover is not connected to the CPU
Restoration Rack or an Expansion Rack.
Unit/Rack Number This function detects an error when the same unit number is set for two or more Units, the
Duplication Error same word is allocated to two or more Basic I/O Units, or the same rack number is set for two
or more Racks.
Too Many I/O Points Error This function detects an error when the total number of I/O points set in the I/O tables or the
Detection number of Units per Rack exceeds the specified range.
This function detects an error when the number of Units in the registered I/O tables does not
I/O Setting Error Detection agree with the actual number of Units that is mounted, or an Interrupt Unit has been connected
in the wrong position, i.e., not in slot 0 to 4.
Program Error Detection This function detects errors in programs.
Instruction Processing This function detects an error when the given data value is invalid when executing an
Error Detection instruction, or execution of instruction between tasks was attempted.
Fatal Error Indirect DM/EM BCD
Detection Error Detection This function detects an error when an indirect DM/EM address in BCD mode is not BCD.
Illegal Area Access Error This function detects an error when an attempt is made to access an illegal area with an
Detection instruction operand.
No END Error Detection This function detects an error when there is no END instruction at the end of the program.
This function detects an error when there are no tasks that can be executed in a cycle, there
Task Error Detection is no program for a task, or the execution condition for an interrupt task was met but there is
no interrupt task with the specified number.
Differentiation Overflow This function detects an error when too many differentiated instructions are entered or deleted
Error Detection during online editing (131,072 times or more).
Invalid Instruction Error This function detects an error when an attempt is made to execute an instruction that is not
Detection defined in the system.
User Program Area This function detects an error when instruction data is stored after the last address in user
Overflow Error Detection program area.
Cycle Time Exceeded Error This function monitors the cycle time (10 to 40,000 ms) and stops the operation when the set
Detection value is exceeded.
System FALS Error Detection This function generates a fatal (FALS) error when the user-defined conditions are met in
Fatal Error (User-defined Fatal Error) program.
Detection Version Error Detection This function detects an error when a user program includes a function that is not supported
(Continued from by the current unit version.
previous page) Memory Card Transfer Error This function detects an error when the automatic file transfer from Memory Card fails at
Memory Self-restoration Function This function performs a parity check on the user program area and self-restoration data.
Simple Backup Function This function collectively backs up the data in CPU Unit (user programs, parameters, and I/O
memory) and internal backup data in the I/O Units.
Unsolicited Communications A function that allows the PLC to use Network Communications Instruction to send required
FINS commands to a computer connected via a Host Link
Host Link communications can be used for remote programming and remote monitoring
Maintenance through a Controller Link, Ethernet, DeviceNet, or SYSMAC LINK Network. Communications
Remote Programming and Monitoring across network layers can be performed.
Controller Link or Ethernet: 8 layers
DeviceNet or SYSMAC LINK: 3 layers
Automatic Online Connection via Direct This function enables automatically connecting to the PLC online when the CX-Programmer
Network Serial is directly connected by a serial connection (peripheral (USB) port or serial port).
This function protects reading and displaying programs and tasks using passwords.
Read Protection using Password Write protection: Set using the DIP switch.
Read protection: Set a password using the CX-Programmer.
Security FINS Write Protection This function prohibits writing by using FINS commands sent over the network.
Unit Name Function This function allows the users to give any names to the Units. Names are verified at online
connection to prevent wrong connection
Hardware ID Using Lot Numbers This function sets operation protection by identifying hardware using the user programs
according to lot numbers stored in the Auxiliary Area.
Units Models Unit version
Unit version 1.3
CJ2H CPU Units CJ2H-CPU6@ Unit version 1.2
Unit version 1.1 *
* Although the product of unit version 1.0 does not exist for the CJ2H CPU unit (CJ2H-CPU6@), this unit version 1.1 means that the functions are
added based on the same functionality as CJ2H-CPU6@-EIP unit version 1.0.
Function Support by Unit Version
Unit Version 1.3 or Later
CX-Programmer version 9.1 or higher must be used to enable using the functions added for unit version 1.3.
Unit CJ2H CPU Unit
Unit version 1.3 or later Unit version 1.2 or earlier
CJ1W-NC281/NC481/NC881 Position Control Units: PCU Supported. Not supported.
Special instructions for certain HIGH-SPEED POSITIONING (NCDMV(218))
Special I/O Units CJ1W-NC281/NC481/NC881 Position Control Units: PCU
POSITIONING TRIGGER (NCDTR(219)) Supported. Not supported.
SIGNED AREA RANGE COMPARE: ZCPS(088) Supported. Not supported.
New special instructions
DOUBLE SIGNED AREA RANGE COMPARE: ZCPSL(116) Supported. Not supported.
Unit Version 1.2 or Later
CX-Programmer version 8.3 or higher must be used to enable using the functions added for unit version 1.2.
Unit CJ2H CPU Unit
Unit version 1.2 or higher Unit version 1.1 or earlier
EM force-set/reset function Supported. Not supported.
Note: User programs that use functions of CJ2H CPU Units with unit version 1.2 or later cannot be used with CJ2H CPU Units with unit version
1.1 or earlier. If an attempt is made to transfer a program that uses any of these functions from the CX-Programmer to a CPU Unit with unit
version 1.1 or earlier , an error will be displayed and it will not be possible to download to the CPU Unit.
Unit Version 1.1 or Later
CX-Programmer version 8.1 or higher must be used to enable using the functions added for unit version 1.1.
Note: Although the product of unit version 1.0 does not exist for the CJ2H CPU unit (CJ2H-CPU6@), it describes here assuming that the functions
are added with unit version 1.1 to the unit version 1.0 functions as well as CJ2H-CPU6@-EIP.
Unit CJ2H CPU Unit
Unit version 1.1 or higher
High-speed interrupt function
Decreased overhead time for interrupt tasks Supported.
Minimum interval setting of 0.1 ms for Scheduled Interrupt Task
Changing the minimum cycle time setting in MONITOR mode Supported.
Synchronous unit operation function Supported.
Addition of Immediate refreshing instruction only for specific Special I/O Units and CPU Bus Units
For CJ1W-AD042 : Analog Input Direct Convert AIDC (216)
For CJ1W-DA042V : Analog Output Direct Convert AODC (217) Supported.
For CJ1W-SCU22/32/42 :
Direct Receive Via Serial Communications Unit DRXDU (261)
Direct Transmit Via Serial Communications Unit DTXDU (262)
Unit Versions and Programming Devices
The following tables show the relationship between unit versions and CX-Programmer versions.
Unit Versions and Programming Devices
Required Programming Device
CPU Unit Functions CX-Programmer Programming
Ver. 7.1 or Ver.8.0 Ver.8.1/ Ver. 8.3 Ver. 9.1 or Console
lower Ver.8.2 higher
CJ2H-CPU6@ Functions Using new functions − − − − OK
Unit version 1.3 added for unit Not using new − OK *1 OK *1 OK OK
version 1.3 functions
CJ2H-CPU6@ Functions Using new functions − − − OK OK
Unit version 1.2 added for unit Not using new − OK *1 OK *1 OK OK − *3
version 1.2 functions
CJ2H-CPU6@ Functions Using new functions − − OK *2 OK OK
Unit version 1.1 added for unit Not using new − − OK OK OK
version 1.1 functions
*1. It is not necessary to upgrade the version of the CX-Programmer if functionality that was enhanced for the upgrade of the CPU Unit will not be
*2. CX-Programmer version 8.2 or higher is required to use CJ2 CPU Units (CJ2H-CPU6@). However the functions of unit version 1.0 and only
High-speed interrupt function and Changing the minimum cycle time setting in MONITOR mode are supported in CX-Programmer version 8.02.
*3. A Programming Console cannot be used with a CJ2H CPU Unit.
Device Type Setting
The unit version does not affect the setting made for the device type on the CX-Programmer. Select the device type as shown in the following table
regardless of the unit version of the CPU Unit.
Series CPU Unit group CPU Unit model Device type setting on
CX-Programmer Ver. 8.0 or higher
CJ Series CJ2H CPU Units CJ2H-CPU6@ CJ2H
A CJ2H CPU Unit (CJ2H-CPU6@) provides two communications ports for external interfaces: a peripheral (USB) port and a serial port.
Battery Compartment LED Indicators DIP Switch
(inside the battery compartment)
Simple Backup/Memory Card
Power Supply Switch Memory Card Indicators
Used to back up Memory Indicates the Memory Card status
Card data or turn OFF the (access and power supply).
power when removing the
Also, press the Memory Card Peripheral (USB) Port
Power Supply Switch to Connected to Programming Devices,
perform an easy backup such as the CX-Programmer
Memory Card Connector Connected to Programming Devices, Host
Connects the Memory Card Computers, general-purpose external devices,
to the CPU Unit. Programmable Terminals, and other devices.
Memory Card Eject Button
Press the eject button to
remove the Memory Card
from the CPU Unit.
Peripheral (USB) Port
Baud Rate 12 Mbps max.
Transmission Distance 5 m max.
Interface USB 2.0-compliant B-type connector
Protocol Peripheral Bus
Communications method Half duplex
Baud rate 0.3/0.6/1.2/2.4/4.8/9.6/19.2/38.4/57.6/115.2 kbps *
Transmission distance 15 m max.
Interface EIA RS-232C
Protocol Host Link, NT Link, 1:N, No-protocol, or Peripheral Bus
* Baud rates for the RS-232C are specified only up to 19.2 kbps. The CJ Series supports serial communications from 38.4 kbps to 115.2 kbps,
but some computers cannot support these speeds. Lower the baud rate if necessary.
Pin No. Signal Name Direction
1 FG Protection earth −
2 SD (TXD) Send data Output
1 6 3 RD (RXD) Receive data Input
4 RS (RTS) Request to send Output
5 CS (CTS) Clear to send Input
6 5V Power supply −
9 7 DR (DSR) Data set ready Input
8 ER (DTR) Data terminal ready Output
9 SG (0 V) Signal ground −
Connector hood FG Protection earth −
Note: Do not use the 5-V power from pin 6 of the RS-232C port for anything but CJ1W-CIF11 RS-422A Conversion Adapter, NT-AL001 RS-232C/
RS-422A Conversion Adapter and NV3W-M@20L Programmable Terminal. The external device or the CPU Unit may be damaged.
Dimensions (Unit: mm)
CJ2H CPU Unit
Cat. No. Model Manual Application Description
Describes the following for CJ2 CPU Units:
• Overview and features
CJ2H-CPU6@-EIP CJ-series CJ2 CPU Unit Hardware specifications for CJ2 • Basic system configuration
W472 CJ2H-CPU6@ Hardware User’s CPU Units • Part nomenclature and functions
CJ2M-CPU@@ Manual • Mounting and setting procedure
• Remedies for errors
• Also refer to the Software User’s Manual (W473).
Describes the following for CJ2 CPU Units:
• CPU Unit operation
CJ2H-CPU6@-EIP CJ-series CJ2 CPU Unit Software specifications for CJ2 • Internal memory
W473 CJ2H-CPU6@ Software User’s Manual CPU Units • Programming
CJ2M-CPU@@ • Settings
• Functions built into the CPU Unit
Also refer to the Hardware User’s Manual (W472)
CJ2M-CPU1@ CS/CJ/NSJ-series Describes each programming instruction in detail.
W474 CS1G/H-CPU@@H Instructions Reference Information on instructions Also refer to the Software User’s Manual (W473) when you
CS1G/H-CPU@@-V1 Manual do programming.
CS1G/H-CPU@@H Describes C-mode commands and FINS commands
CS1G/H-CPU@@-V1 Refer to this manual for a detailed description of commands
CS1D-CPU@@H for communications with the CPU Unit using C mode
CS1D-CPU@@S commands or FINS commands.
CS1W-SCU@@-V1 CS/CJ/CP/NSJ-series Note: This manual describes the communications
CS1W-SCB@@-V1 Communications Information on communications commands that are addressed to CPU Units. The
W342 CJ1H-CPU@@H-R Command Reference for CS/CJ/CP-series CPU Units communications path that is used is not relevant and
CJ1G/H-CPU@@H Manual and NSJ-series Controllers can include any of the following: serial ports on CPU
CJ1G-CPU@@P Units, communications ports on Serial
CJ1M-CPU@@ Communications Units/Boards, and Communications
CJ1G-CPU@@ Units. For communications commands addressed to
CJ1W-SCU@@-V1 Special I/O Units or CPU Bus Units, refer to the
CP1H-X@@@@-@ operation manual for the related Unit.
W463 CXONE-AL@@C-V@/ CX-One Setup Manual Installing software from the CX- Provides an overview of the CX-One FA Integrated Tool
AL@@D-V@ One Package and describes the installation procedure.
CX-Programmer Support Software for Windows Describes operating procedures for the CX-Programmer.
W447 Operation Manual computers Also refer to the Software User’s Manual (W473) and
WS02-CXPC@-V@ Functions Blocks/ Instructions Reference Manual (W474) when you do
Structured Text CX-Programmer operating programming.
W469 Operation Manual SFC
Operating procedures for CX-
Simulator Simulation Support Describes the operating procedures for the CX-Simulator.
CS/CJ/CP/NSJ-series Software for Windows When you do simulation, also refer to the CX-Programmer
W366 WS02-SIMC1-E CX-Simulator Operation computers Operation Manual (W446), Software User’s Manual (W473),
Manual Using simulation in the CX- and CS/CJ/NSJ series Instructions Reference Manual
Programmer with CX- (W474).
Programmer version 6.1 or
W464 CXONE-AL@@C-V@/ CX-Integrator Network Network setup and monitoring Describes the operating procedures for the CX-Integrator.
CXONE-AL@@D-V@ Configuration Software
Read and Understand This Catalog
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or
Warranty and Limitations of Liability
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified)
from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR
FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS
IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS
OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT
SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's
application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the
products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product,
machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible
uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:
• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.
• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles,
safety equipment, and installations subject to separate industry or government regulations.
• Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE
SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons.
It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made.
However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or
establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual
specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the
result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON
Warranty and Limitations of Liability.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.
In the interest of product improvement, specifications are subject to change without notice.
Industrial Automation Company
(c)Copyright OMRON Corporation 2010 All Right Reserved.