Omron CS CJ1W-ETN21 Operation Manual page 154

Using Socket Services by Manipulating Dedicated Control Bits
Continued from previous page.
000001 000201 151905
000001 000201 151905
000002
000002 000202
000002 000202
000002 000202 151903
000002 000202 151903
000003
150913
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130
SET
<>(305)
D30027
#0000
RSET
@RSET
@SET
MOV(21)
MOV(21)
MOV(21)
MOV(21)
SET
RSET
@SET
<>(305)
D30027
#0000
RSET
@RSET
=(300)
@SET
D30001
&100
TCP Send
When the TCP Send Bit (CIO 000002) turns ON, the TCP
000101
Send Error Flag (CIO 000102) is turned OFF and the TCP
Sending Flag (CIO 000202) is turned ON to initialize pro-
cessing.
000001
000102
000202
When the TCP Sending Flag (CIO 000202) turns ON, the
following parameters are written to the parameter area for
#0001
socket number 1.
D30018
D30018: 0001 Hex = UDP/TCP socket No. 1
D30023: 0064 Hex = No. of send/receive bytes is 100
D30024 and D30025:
8200 0000 Hex =
#0064
Send/receive data address D00000
D30023
#8200
D30024
#0000
D30025
151903
After the parameters have been set, the Send Request
Switch (CIO 151903) is turned ON and the TCP Sending
Flag (CIO 000202) is turned OFF.
000202
If the Send Request Switch (CIO 151903) turns OFF while
the TCP Sending Flag (CIO 000202) is OFF, the contents
of the response code (D30027) in the Socket Service Pa-
rameter Area is checked, and if it is not 0000 Hex (normal
000102
end), the TCP Send Error Flag (CIO 000102) is turned ON.
After the execution results have been checked, the TCP
Send Bit (CIO 000002) is turned OFF.
000002
TCP Receive
When the TCP Receive Bit (CIO 000003) turns ON, the
000103
TCP Receive Error Flag (CIO 000103) is turned OFF and
the TCP Data Received/Requested Flag (CIO 150913), and
the Number of Bytes Received at TCP Socket (D30001) are
000203
checked. If the data is stored in the buffer, the TCP
Receiving Flag (CIO 000203) turns ON.
Section 6-7