I/O Memory

Appendix B

I/O Memory Structure

Coordinator Module

The following table shows the basic structure of the I/O Memory for the Coordinator Module.

 

Area

Size

Range

Task

External

Bit

Word

Access

Change

Status

Status

Forc-

 

 

 

 

usage

I/O allo-

access

access

 

 

from

at

at

ing

 

 

 

 

Read

Write

 

 

 

 

 

cation

 

 

CX-Pro-

power

mode

bit

 

 

 

 

 

 

 

 

 

 

gram-

ON

change

sta-

 

 

 

 

 

 

 

 

 

 

mer

 

 

tus

CIO

I/O Area

24 bits

CIO 0000

Shared

OK

OK

OK

OK

OK

OK

Cleared

Cleared

OK

Area

 

(2

to

by all

Coordi-

 

 

 

 

 

 

 

 

 

 

words)

CIO 0001

tasks

nator

 

 

 

 

 

 

 

 

 

 

 

 

 

Module

 

 

 

 

 

 

 

 

 

Serial PLC

320 bits

CIO 0080

 

---

OK

OK

OK

OK

OK

 

 

OK

 

Link Area

(20

to

 

 

 

 

 

 

 

 

 

 

 

 

words)

CIO 0099

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cyclic

600 bits

CIO 0100

 

---

OK

OK

OK

OK

OK

 

 

OK

 

Refresh Bit

(40

to

 

 

 

 

 

 

 

 

 

 

 

Area

words)

CIO 0139

 

 

 

 

 

 

 

 

 

 

 

Synchro-

320 bits

CIO 0200

 

---

OK

OK

OK

OK

OK

 

 

OK

 

nous Data

(20

to

 

 

 

 

 

 

 

 

 

 

 

Link Bit

words)

CIO 0219

 

 

 

 

 

 

 

 

 

 

 

Area

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Internal I/O

2,784

CIO 0002

 

---

OK

OK

OK

OK

OK

 

 

OK

 

Areas

bits

to

 

 

 

 

 

 

 

 

 

 

 

 

(174

CIO 0079

 

 

 

 

 

 

 

 

 

 

 

 

words)

CIO 0140

 

 

 

 

 

 

 

 

 

 

 

 

 

to

 

 

 

 

 

 

 

 

 

 

 

 

 

CIO 0199

 

 

 

 

 

 

 

 

 

 

 

 

 

CIO 0220

 

 

 

 

 

 

 

 

 

 

 

 

 

to

 

 

 

 

 

 

 

 

 

 

 

 

 

CIO 0255

 

 

 

 

 

 

 

 

 

 

Work Area

4,096

W000 to

 

---

OK

OK

OK

OK

OK

Cleared

Cleared

OK

 

 

bits (256

W255

 

 

 

 

 

 

 

 

 

 

 

 

words)

 

 

 

 

 

 

 

 

 

 

 

Auxiliary Area

10,400

A000 to

 

---

OK

OK

OK

OK

OK

Cleared

Main-

No

 

 

bits (650

A649

 

 

 

 

 

 

 

 

tained

 

 

 

words)

 

 

 

 

 

 

 

 

 

 

 

TR Area

16 bits

TR0 to

 

---

OK

---

OK

OK

No

Cleared

Cleared

No

 

 

 

TR15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DM Area

30,000

D00000

 

---

No

OK

OK

OK

OK

Cleared

Main-

No

 

 

words

to

 

 

 

 

 

 

 

 

tained

 

 

 

 

D29999

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2,768

D30000

 

---

No

OK

OK

OK

OK

Main-

Main-

No

 

 

words

to

 

 

 

 

 

 

 

tained

tained

 

 

 

 

D32767

 

 

 

 

 

 

 

(See

 

 

 

 

 

 

 

 

 

 

 

 

 

note.)

 

 

Timer Area

256

T0000 to

 

---

OK

---

OK

OK

OK

Cleared

Cleared

OK

 

 

words

T0255

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Counter Area

256

C0000 to

 

---

OK

---

OK

OK

OK

Cleared

Main-

OK

 

 

words

C0255

 

 

 

 

 

 

 

 

tained

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note When data is written from the CX-Programmer or a host controller, these DM Area words are backed up in flash memory. The contents of flash memory is read out each time the power is turned ON.

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Image 323
Omron FQM1-MMP21, FQM1-CM001, FQM1-MMA21 operation manual Memory Structure, Coordinator Module, Cio