731
Auxiliary Area Allocations by Address
Appendix D
A569
03
Closing
Flag
(Socket 3)
The status of TCP/UDP Socket 3 is
ON during close processing. (Turns
ON when close request is received.)
OFF when close processing has
been completed.
ON: Start close
OFF: Close
---
Cleared
When
socket 3
starts to
close, the
bit is ON.
When
socket 3
closes
com-
pletely,
the bit will
OFF.
---
13
Data
Received
Flag
(Socket 3)
The status of TCP/UDP Socket 3 is
ON when data from a remote node
has been received at an open TCP
socket. OFF when receive process-
ing has been requested for an open
TCP socket.
ON: Receiving
OFF: Received
---
Cleared
When the
data
needs to
be
received
by socket
3, the bit
will ON.
After
receiving
com-
pletely,
the bit will
OFF.
---
14
Results
Storage
Error Flag
(Socket 3)
The status of TCP/UDP Socket 3 is
ON if there is an error in storing the
results when socket services are
used by means of the CMND (490)
instruction. OFF when the next
request is received. (Connected by
TCP.)
ON: Error
OFF: Normal
---
Cleared
If socket
3 is in
error sta-
tus, the
bit will
ON.
---
15
TCP/UDP
Open Flag
(Socket 3)
The status of TCP/UDP Socket 3 is
ON when open processing has been
completed. OFF when close pro-
cessing has been completed. (Stays
OFF for abnormal open processing
completion.)
ON: Opened
OFF: Closed
---
Cleared
When
socket 3
status is
opened,
the bit will
ON.
When
socket 3
is closed,
the bit will
OFF.
---
A571
00
UDP Open
Request
Switch
(Socket 1)
UDP socket opened when socket
service request switch 1 is turned
ON. Unit turns OFF switch 1 when
open processing has been com-
pleted (i.e., when a connection has
been made).
ON: Request
UDP open
OFF: Finish
open
---
Cleared
When
UDP
socket is
opened,
the bit will
OFF.
---
01
TCP Pas-
sive Open
Request
Switch
(Socket 1)
Passive TCP socket opened when
socket service request switch 1 is
turned ON. Unit turns OFF switch 1
when open processing has been
completed (i.e., when a connection
has been made).
ON: Request
TCP Passive
open
OFF: Finish
open
---
Cleared
When
TCP Pas-
sive
socket is
opened,
the bit will
OFF.
---
02
TCP Active
Open
Request
Switch
(Socket 1)
Active TCP socket opened when
socket service request switch 1 is
turned ON. Unit turns OFF switch 1
when open processing has been
completed (i.e., when a connection
has been made).
ON: Request
TCP Active
open
OFF: Finish
open
---
Cleared
When
TCP
Active is
opened,
the bit will
OFF.
---
03
Send
Request
Switch
(Socket 1)
Send processing executed when
socket service request switch 1 is
turned ON. (The protocol (TCP/UDP)
is determined when the socket is
opened.) Unit turns OFF switch 1
when send processing has been
completed.
ON: Request
send
OFF: Finish
send
---
Cleared
When the
data is
sent, the
bit will
OFF.
---
Addresses
Name
Function
Settings
Status
after
mode
change
Status at
startup
Write
timing
Related
Flags,
Settings
Word
Bits
Summary of Contents for CP1L-EL20DR-D
Page 3: ...CP1L EL20D CP1L EM30D CP1L EM40D CP1L EL EM CPU Unit Operation Manual Produced July 2017...
Page 4: ...iv...
Page 10: ...x...
Page 22: ...xxii...
Page 34: ...xxxiv Software Licenses and Copyrights 7...
Page 192: ...158 Trial Operation and Debugging Section 5 3...
Page 250: ...216 Automatic Clock Adjustment and Specifying Servers by Host Name Section 6 7...
Page 666: ...632 Trouble Shooting Section 11 7...
Page 696: ...662 Standard Models Appendix A...
Page 805: ...771 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 806: ...772 Connections to Serial Communications Option Boards Appendix F...
Page 836: ...802 PLC Setup Appendix G...
Page 838: ...804 TCP Status Transitions Appendix H...
Page 840: ...806 Ethernet Network Parameters Appendix I...
Page 842: ...808 Buffer Configuration CP1L EL EM Appendix J...
Page 844: ...810 Ethernet Specifications Appendix K...
Page 851: ...Index 817 work words 118 write protection 447...
Page 852: ...818 Index...
Page 854: ...820 Revision History...
Page 855: ......