Using Socket Services by Manipulating Dedicated Control Bits

Section 6-7

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000002 000202

000002 000202

000002 000202 151903

MOV(21)

#0001

D30018

MOV(21)

#C424

D30020

MOV(21)

#2037

D30021

MOV(21)

#1000

D30022

MOV(21)

#0064

D30023

MOV(21)

#8200

D30024

MOV(21)

#0000

D30025

SET

151903

RSET

000202

When the UDP Sending Flag (CIO 000202) turns ON, the following parameters are written to the parameter area for socket number 1.

D30018: 0001 Hex = UDP/TCP socket No. 1

D30020 and D30021:

C424 2037 Hex =

Remote IP address 196.36.32.55 D30022: 1000 Hex = Remote UDP/TCP port No. 4096

D30023: 0064 Hex = No. of send/receive bytes is 100

D30024 and D30025:

8200 0000 Hex =

Send/receive data address D00000

After the parameters have been set, the Send Request Switch (CIO 151903) is turned ON and the UDP Sending Flag (CIO 000202) is turned OFF.

<>(305)

D30027

#0000

000002 000202 151903

000003

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SET

000102

RSET

000002

@RSET

000103

@SET

000203

If the Send Request Switch (CIO 151903) turns OFF while the UDP Sending Flag (CIO 000200) 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 end), the UDP Send Error Flag (CIO 000102) is turned ON.

After the execution results have been checked, the UDP Send Bit (CIO 000002) is turned OFF.

UDP Receive

When the UDP Receive Bit (CIO 000003) turns ON, the UDP Receive Error Flag (CIO 000103) is turned OFF and the UDP Receiving Flag (CIO 000203) is turned ON to initialize processing.

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Omron CJ1W-ETN21 operation manual 134