Omron CVM1-CLK21, CS1W-RPT01, CJ1W-CLK21-V1 Bit Status and Error Processing, Data Link Status

Models: CS1W-RPT01 CJ1W-CLK21-V1 CVM1-CLK21 CQM1H-CLK21 CS1W-CLK21-V1 C200HW-CLK21

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Status Area and Troubleshooting

Section 9-2

4-Bit Format Specified

Node 4

Node 3

Node 2

Node 1

Node 8

Node 7

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Node 5

Node 12

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Node 9

Node 16

Node 15

Node 14

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Node 20

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Node 18

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Node 24

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Node 21

Node 30

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Node 25

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Node 40

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Node 44

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Node 55

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Node 57

0

0

Node 62

Node 61

PLC status

0:Inactive (user program not running)

1:Active (user program running)

PLC's CPU Unit error

0:Normal

1:Error

Communications error (data link reception)

0:Normal

1:Error

Data link participation

0:Not in data link or data link inactive

1:In data link

The data link status can be reflected in 4-bit format only when using a CS1W- CLK21-V1 or CJ1W-CLK21-V1. It is reflected in 8-bit format with other mod- els.

When the first data link status word is set to the default (0000) for either the manually set data link tables or automatically set data link tables (In the first data link status word parameter), the data link status is stored in the above area (CIO 1500 + 25 (Unit No.) (+ 7 to +22)).

When a different area has been set for the first data link status word, the sta- tus is stored in the specified area. The status storage format is the same as the one shown in the above diagram.

Note Refer to 5-4 Checking Data Link Status for details on status flags.

Bit Status and Error Processing

Data Link Status

Bit status

Probable cause

Probable remedy

 

 

 

PLC’s CPU Unit error is 1:

A fatal PLC error, non-fatal

Refer to the PLC’s opera-

ON

PLC error, or a watchdog

tion manual and correct

 

timer error has occurred.

the error. If the error occurs

 

 

again, replace the PLC.

 

 

 

 

The Unit is mounted to a

Refer to 1-2-4 Controller

 

non-compatible PLC.

Link Unit Models and PLCs

 

 

and mount onto the correct

 

 

PLC.

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Page 318
Image 318
Omron CVM1-CLK21, CS1W-RPT01 Bit Status and Error Processing, Data Link Status, Bit status Probable cause Probable remedy