Allocated CIO Area Words

 

Section 3-2

 

 

 

 

 

 

Bit

Name

Status

 

Controlled

Unit operation

 

 

 

 

by

 

 

 

 

 

 

 

11

COS Send

ON

 

Unit

Indicates that an attempt was made to send COS to a Master using the

 

Failed Flag

 

 

 

Slave COS send switch (Slave COS Send Switch in n+1) in Software

 

 

 

 

 

Switches 2, but the transmission failed.

 

 

 

 

 

The following may cause the failure of COS signal transmission.

 

 

 

 

 

• A COS connection was not established with a master.

 

 

 

 

 

• Bus OFF error occurred.

 

 

 

 

 

• A network power error occurred.

 

 

 

 

 

• A send timeout occurred.

 

 

 

 

 

Once this bit turns ON, it will remain ON until the operation is successfully

 

 

 

 

 

completed.

 

 

 

 

 

 

 

 

OFF

 

Unit

Indicates that the error has not occurred. The bit turns OFF when COS is

 

 

 

 

 

successfully sent.

 

 

 

 

 

 

12

Connection

ON

 

Unit

Indicates that an I/O connection has been established for OUT 2/IN 2.

 

2 Estab-

 

 

 

This bit turns ON even if valid I/O data has not been exchanged.

 

lished Flag

 

 

 

 

 

OFF

 

Unit

Indicates that an I/O connection has not been established for OUT 2/IN 2.

 

 

 

 

 

 

 

 

 

13

Connection

ON

 

Unit

Indicates that an I/O connection has been established for OUT 1/IN 1.

 

1 Estab-

 

 

 

This bit turns ON even if valid I/O data has not been exchanged.

 

lished Flag

 

 

 

 

 

OFF

 

Unit

Indicates that an I/O connection has not been established for OUT 1/IN 1.

 

 

 

 

 

 

 

 

 

14

Remote I/O

ON

 

Unit

Indicates that an I/O connection has been established for OUT 2/IN 2 and

 

Communica-

 

 

 

the slave is conducting normal remote I/O communications with the mas-

 

tions Flag for

 

 

 

ter.

 

OUT 2/IN 2

 

 

 

 

 

OFF

 

Unit

Indicates that an I/O connection has been established for OUT 2/IN 2 and

 

 

 

 

 

 

 

 

the slave is not conducting normal remote I/O communications with the

 

 

 

 

 

master.

 

 

 

 

 

Usage example: When writing the ladder program for slave remote I/O

 

 

 

 

 

communications, used a NO input conditions for this bit to control I/O pro-

 

 

 

 

 

cessing with the master.

 

 

 

 

 

 

15

Remote I/O

ON

 

Unit

Indicates that an I/O connection has been established for OUT 1/IN 1 and

 

Communica-

 

 

 

the Slave is conducting normal remote I/O communications with the Mas-

 

tions Flag for

 

 

 

ter.

 

OUT 1/IN 1

 

 

 

 

 

OFF

 

Unit

Indicates that an I/O connection has been established for OUT 1/IN 1 and

 

 

 

 

 

 

 

 

the slave is not conducting normal remote I/O communications with the

 

 

 

 

 

master.

 

 

 

 

 

Usage example: When writing the ladder program for slave remote I/O

 

 

 

 

 

communications, used a NO input conditions for this bit to control I/O pro-

 

 

 

 

 

cessing with the master.

 

 

 

 

 

 

77

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Image 90
Omron CS1W-DRM21, CJ1W-DRM21 operation manual Tions Flag for Ter OUT 2/IN