Mitsubishi MELSEC L Series User Manual page 356

Number Name
SD1276
Specifies
Forced
forced
connection
connection
invalidation
invalidation.
SD1277
Open Stores open
SD1282 completion completion
signal status
Open request Stores open
SD1284
signal request status
354
Meaning
This register is specified to forcibly invalidate a connection by a
program. After being specified invalid, the connection stops
communication and does not respond.(When a remote password
is used and frequent unlock processing errors occur on a
connection, this register is useful for temporarily disabling
access.)
b15b14
SD1276
b15b14 b13 b12
SD1277
0
• 0: Valid (default)
• 1: Invalid
This register stores the open completion status of a socket
communication connection. (when the open method is socket
communication). Bits for connections other than that of socket
communication are always "0".
b15b14
SD1282
• 0: Open processing is not completed.
• 1: Open processing is completed.
This register stores the open request status of a socket
communication connection.
Bits for connections other than that of socket communication are
always "0".
b15b14
SD1284
• 0: No open request
• 1: In open request
Explanation
to b1 b0
Connection 1
Connection 2
to
Connection 15
Connection 16
to b4 b3 b2 b1 b0
0 0
MELSOFT communication
port (UDP/IP)
MELSOFT communication
port (TCP/IP)
FTP communication port
Direct connection to
MELSOFT
to b1 b0
Connection 1
Connection 2
to
Connection 15
Connection 16
to b1 b0
Connection 1
Connection 2
to
Connection 15
Connection 16
Corre-
Corre-
sponding
Set by
sponding
(When Set) ACPU
D9
QnU
U
LCPU
New
S
QnU
(Status
LCPU
change)
CPU
*1
*2