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5 - 3

MELSEC-F

COMMUNICATION PROCEDURE

5

5 - 3

5.2 Initial Processing

This section explains the initial processing of the Ethernet module.

5.2.1 Initial processing

The initial processing enables data communication with an external device by setting 
the parameters required for data communication via the Ethernet module.
Set the following parameters in the sequence program, write them to the Ethernet 
module; the initial processing of the Ethernet module is then performed by one of the 
following methods.
• Re- initialization request (Write the re-initialization request (0001

H

, 0002

H

, 0005

H

 or 

0006

H

) to BFM #1600.)

• Power ON the Ethernet module again.

(1) Parameters required for initial processing

• "Operational settings"

:(See Section 4.6.)

• "Initial settings"

:(See Subsection 5.2.2.)

(2) Confirmation of initial processing result

If the initial processing does not complete normally, correct the above parameter 
setting value and write to the Ethernet module. Then re-initialize the Ethernet 
module.

Initial processing

Ethernet module

INIT.LED

Initial normal completion 

signal (BFM#28 b0)

Initial abnormal completion 

signal (BFM#28 b5)

Initial normal completion 

signal (BFM#27)

At normal 

 

completion

 : On

ON

OFF

0001

H

At abnormal 

 

completion

 : Off

OFF

ON

0000

H