Mitsubishi Electric MELSEC-L Series - Page 47

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CHAPTER 3 SPECIFICATIONS
3
3.5 Buffer Memory 3.5.2 List of buffer memory addresses
20480
(5000
H
)
Connection status
storage area
Connection
status
information
area
Open completion signal
• 0: Open incomplete
• 1: Open completed
Connection No.1 (b0)
Connection No.2 (b1)
to
Connection No.16 (b15)
0
H

20481
(5001
H
)
System area 
20482
(5002
H
)
Open request signal
• 0: No open request
• 1: Open being requested
Connection No.1 (b0)
Connection No.2 (b1)
to
Connection No.16 (b15)
0
H

20483 and 20484
(5003
H
and 5004
H
)
System area 
20485
(5005
H
)
Fixed buffer
information
area
Fixed buffer reception status signal
• 0: Data not received
• 1: Data being received
Connection No.1 (b0)
Connection No.2 (b1)
to
Connection No.16 (b15)
0
H

20486
(5006
H
)
Remote
password
status
storage
area
Remote password status
• 0: Unlock status/no remote password setting
• 1: Lock status
Connection No.1 (b0)
Connection No.2 (b1)
to
Connection No.16 (b15)
0
H

20487
(5007
H
)
System port
information area
Remote
password
status
storage
area
Remote password status
• 0: Unlock status/no remote password setting
• 1: Lock status
• Auto-open UDP port (b0)
• MELSOFT application transmission port (UDP) (b1)
• MELSOFT application transmission port (TCP) (b2)
• FTP transmission port (b3)
0
H

20488
(5008
H
)
System port
use
prohibited
designation
area
System port use prohibited designation
• 0: Use allowed
• 1: Use prohibited
• Auto-open UDP port (b0)
• MELSOFT application transmission port (UDP) (b1)
• MELSOFT application transmission port (TCP) (b2)
0
H

20489 to 20591
(5009
H
to 506F
H
)
System area 
Address
Application Name Initial value
Programming
tool setting
applicability
Decimal
(Hexadecimal)