23
Controller Section Specifications
Item Specifications
Control method Stored program
I/O control method Cyclic scan and immediate processing are both possible.
Programming Ladder diagram
CPU processing modes Normal Mode, Parallel Processing Mode with Asynchronous Memory Access, Parallel Processing Mode with Synchronous
Memory Access, and Peripheral Servicing Priority Mode
Instruction length 1 to 7 steps per instruction
Ladder instructions Approx. 400 (3-digit function codes)
Execution time Basic instructions 0.04 µs min.
Special instructions 0.06 µs min.
Overhead time Normal mode: 0.3 ms
Parallel processing: 0.3 ms
Installation Installed using Panel Mounting Bracket.
Mountable Expansion Units
One of the following can be mounted as an Expansion Unit:
•NSJ I/O Control Unit (NSJW-IC101)
•NSJ Controller Link Unit (NSJW-CLK21-V1)
•NSJ Ethernet Unit (NSJW-ETN21)
Maximum number of Expansion
Racks
•With the NSJW-IC101 I/O Control Unit mounted, a maximum of three CJ-series Expansion Racks can be used with the
NSJ@-@@@@(B)-G5D.
•A CJ-series CJ1W-II101 Interface Unit and Power Supply Unit are required for each Expansion Rack.
Maximum number of connectable
Units
•Per Expansion Rack: 10 Units max. (Basic I/O Units, Special I/O Units, or CPU Bus Units)
•A maximum of 30 Units (10 Units on CJ-series Expansion Rack × 3) can be mounted to the entire NSJ@-@@@@(B)-G5D
system.
Number of tasks
288 (cyclic tasks: 32, interrupt tasks: 256)
Interrupt tasks can be defined as cyclic tasks called “extra cyclic tasks.” Including these, up to 288 cyclic tasks can be used.
Note 1. Cyclic tasks are executed each cycle and are controlled with TKON(820) and TKOF(821) instructions.
Note 2. The following 3 types of interrupt tasks are supported: Power OFF interrupt task: 1 max., Scheduled interrupt tasks:
2 max., External interrupt tasks: 256 max.
Interrupt types
Scheduled Interrupts: Interrupts generated at a time scheduled by the Controller Section’s built-in timer. (See note. 1)
Power OFF Interrupt (See note 2.): Interrupt executed when the Controller Section’s power is turned OFF.
External I/O Interrupts: Interrupts from the Special I/O Units or CPU Bus Units.
Note 1. Scheduled interrupt time interval is either 1 ms to 9,999 ms or 10 ms to 99,990 ms, in units of 1 ms or 10 ms.
Note 2. Not supported when the CJ1W-PD022 Power Supply Unit is mounted.
Calling subroutines from more than
one task Supported using global subroutines.
Function blocks Languages supported in function block definitions: Ladder programming language and structured text
CIO (Core I/O)
Area
I/O Area
2,560 (160 words): CIO 000000 to CIO 015915 (words CIO 0000 to CIO 0159)
The setting of the first rack word can be changed from the default (CIO 0000) so that CIO 0000 to CIO 0999
can be used.
I/O bits are allocated to Basic I/O Units.
The CIO Area
can be used as
work bits if the
bits are not
used as shown
here.
Link Area 3,200 (200 words): CIO 10000 to CIO 119915 (words CIO 1000 to CIO 1199)
CPU Bus Unit
Area
6,400 (400 words): CIO 150000 to CIO 189915 (words CIO 1500 to CIO 1899)
CPU Bus Unit bits store operating status of CPU Bus Units. (25 words per Unit, 16 Units max.)
Inner Board Area 1,600 (100 words): CIO 190000 to CIO 199915 (words CIO 1900 to CIO 1999)
Bits in the Inner Board Area are allocated to the display status area.
C200H Special I/O
Unit Area
15,360 (960 words): CIO 200000 to CIO 295915 (words CIO 2000 to CIO 2959)
Bits in the Special I/O Area can be allocated to Special I/O Units (10 words per Unit, 96 Units max.)
DeviceNet
Area
9,600 (600 words): CIO 320000 to CIO 379915 (words CIO 3200 to CIO 3799)
DeviceNet bits are allocated to Slaves for DeviceNet Section remote I/O communications when the master
function is used with fixed allocations.
Fixed allocation setting 1 Outputs: CIO 3200 to CIO 3263 Inputs: CIO 3300 to CIO 3363
Fixed allocation setting 2 Outputs: CIO 3400 to CIO 3463 Inputs: CIO 3500 to CIO 3563
Fixed allocation setting 3 Outputs: CIO 3600 to CIO 3663 Inputs: CIO 3700 to CIO 3763
Note: The following words are allocated to the master function even when the DeviceNet Unit is used as a
slave.
Fixed allocation setting 1 Outputs: CIO 3370 (master to slave) Inputs: CIO 3270 (slave to master)
Fixed allocation setting 2 Outputs: CIO 3570 (master to slave) Inputs: CIO 3470 (slave to master)
Fixed allocation setting 3 Outputs: CIO 3770 (master to slave) Inputs: CIO 3670 (slave to master)
Work bits
CIO (Core I/O)
Area
4,800 (300 words): CIO 120000 to CIO 149915 (words CIO 1200 to CIO 1499)
37,504 (2,344 words): CIO 380000 to CIO 614315 (words CIO 3800 to CIO 6143)
These bits in CIO Area are used as work bits in programming to control program execution. They cannot be
used for external I/O.
Work Area
8,192 bits (512 words): W00000 to W51115 (words W000 to W511)
Control programs only. (I/O from external I/O terminals is not possible.)
Note: When using work bits in programming, use bits in Work Area first before using bits from other areas.
Holding Area
8,192 bits (512 words): H00000 to H51115 (words H000 to H511)
Holding bits are used to control execution of program, and maintain their ON/OFF status when the PLC is
turned OFF or operating mode is changed.
Note: Words H512 to H1535 are allocated to the Function Block Holding Area and are used only for the func-
tion block instance area (internally allocated variable area).
Auxiliary Area
Read only: 7,168 bits (448 words): A00000 to A44715 (words A000 to A447)
Read/write: 8,192 bits (512 words): A44800 to A95915 (words A448 to A959)
Auxiliary bits are allocated specific functions.