Datasheet
156 Programmable Controllers
Item Specification
CIO (Core I/O) Area I/O Area 2,560 (160 words): CIO 000000 to CIO 015915 (words CIO 0000 to CIO 0159)
Setting of first rack words can be changed from default (CIO 0000) so that CIO 0000 to CIO 0999
can be used.
I/O bits are allocated to Basic I/O Units.
These bits can be used
as work bits when not
used for the applica-
tions described on the
left.
Built-in I/O Area 10 points, Inputs: CIO 296000 to CIO 296009, Outputs: CIO 296100 to CIO 296105
Used for built-in I/O, CJ1M-CPU22/23 only
Link Area 3,200 (200 words): CIO 100000 to CIO 119915 (words CIO 1000 to CIO 1199)
Link bits are used for data links and are allocated to Units in Controller Link Systems.
CPU Bus Unit
Area
6,400 (400 words): CIO 150000 to CIO 189915 (words CIO 1500 to CIO 1899)
CPU Bus Unit bits store the operating status of CPU Bus Units. (25 words per Unit, 16 Units max.)
Special I/O Unit
Area
15,360 (960 words): CIO 200000 to CIO 295915 (words CIO 2000 to CIO 2959)
Special I/O Unit bits are allocated to Special I/O Units. (10 words per Unit, 96 Units max.)
Serial PLC Link
Area
90 words, CIO 3100 to CIO 3189 (bits CIO 310000 to CIO 318915)
Used for data links in serial PLC links, CJ1M only
DeviceNet Area /
PROFIBUS-DP
Area
Note:
Other
areas than
these default
areas can be
allocated
9,600 (600 words): CIO 320000 to CIO 379915 (words CIO3200 to CIO 3799)
DeviceNet bits are allocated to Slaves for DeviceNet Unit remote I/O communications when the
master function is used with fixed allocations.
Fixed allocation setting 1Outputs:CIO 3200 to CIO 3263
Inputs:CIO 3300 to CIO 3363
Fixed allocation setting 2Outputs:CIO 3400 to CIO 3463
Inputs:CIO 3500 to CIO 3563
Fixed allocation setting 3Outputs:CIO 3600 to CIO 3663
Inputs:CIO 3700 to CIO 3763
The following words are allocated to the master function even when the DeviceNet Unit is used
as a slave.
Fixed allocation setting 1Outputs:CIO 3370 (master to slave)
Inputs:CIO 3270 (slave to master)
Fixed allocation setting 2Outputs:CIO 3570 (master to slave)
Inputs:CIO 3470 (slave to master)
Fixed allocation setting 3Outputs:CIO 3770 (master to slave)
Inputs:CIO 3670 (slave to master)
Internal I/O Area
(work bits)
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 ex-
ternal 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 PLC is turned OFF or
operating mode is changed. In CPU Ver.3.0 and higher, Words H512 to H1535 exist, but are internally allocated as Func-
tion Block Holding Area and cannot be used.
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.
Temporary Area 16 bits (TR00 to TR15) Temporary bits are used to store ON/OFF execution conditions at program branches.
Timer Area 4,096: T0000 to T4095 (used for timers only)
Counter Area 4,096: C0000 to C4095 (used for counters only)
DM Area 32 kWords: D00000 to D32767
Used as a general-purpose data area for reading and writing data in word units (16 bits). Words in DM Area maintain their
status when PLC is turned OFF or operating mode is changed.
Internal Special I/O Unit DM Area: D20000 to D29599 (100 words × 96 Units). Used to set parameters for Special I/O
Units.
CPU Bus Unit DM Area: D30000 to D31599 (100 words × 16 Units). Used to set parameters for CPU Bus Units.
EM Area 32 kWords per bank, 7 banks max.: E0_00000 to E6_32767 max. (Not supported by CJ1M CPU Units.)
Used as a general-purpose data area for reading and writing data in word units (16 bits). Words in EM Area maintain their
status when PLC is turned OFF or operating mode is changed.
The EM Area is divided into banks, and addresses can be set by either of following methods.
Changing current bank using EMBC(281) instruction and setting addresses for current bank.
Setting bank numbers and addresses directly.
EM data can be stored in files by specifying number of first bank. (EM file memory)
Index Registers IR0 to IR15. Store PLC memory addresses for indirect addressing. Index registers can be used independently in each task.
One register is 32 bits (2 words).
Index registers can be specified as shared or independent for each task.
Task Flag Area 32 (TK0000 to TK0031). Task Flags are read-only flags that are ON when corresponding cyclic task is executable and
OFF when corresponding task is not executable or in standby status.
Trace Memory 4,000 words (trace data: 31 bits, 6 words)
File Memory Memory Cards: OMRON Memory Cards with 15-MB, 30-MB, or 64-MB capacities can be used. (MS-DOS format).
EM file memory: Part of EM Area can be converted to file memory (MS-DOS format).
Y201-EN2-03.book Seite 156 Donnerstag, 30. März 2006 1:52 13