Download MELSEC-L CPU Module User`s Manual (Built

CHAPTER 6 SOCKET COMMUNICATION FUNCTION
6.4.1
Establishing a connection (SP.SOCOPEN)
Command
SP.SOCOPEN
Internal device
Setting
data
Bit
S1
-
S2
-
Word
U0
S1
J†\†
R, ZR
Bit
U†\G†
Word
D
S2
Zn
Constant
K, H
Others
*1
*1
D
*1
SP.SOCOPEN
-
-
*1
-
-
-
*1
-
-
-
6
File registers set for each local device or program cannot be used.
(1) Setting data
Setting data
Description
U0
Dummy
S1
Connection number (Setting range: 1 to 16)
S2
Start number of the device from which control data are stored
Set by*2
Data type
-
Character string
User
BIN 16-bit
User, system
Device name
System
Bit
Start number of the device which turns on for one scan upon
completion of the instruction
D
*2
6.4 Socket Communication Function Instructions
6.4.1 Establishing a connection (SP.SOCOPEN)
D
+1 also turns on when failed.
The "Set by" column indicates the following.
User: The data must be set before executing the SP.SOCOPEN instruction.
System: The CPU module stores the execution result of the SP.SOCOPEN instruction.
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