7 SOCKET COMMUNICATION FUNCTION INSTRUCTION
7.2 SOCRCV Instruction
257
7
7.2
SOCRCV Instruction
SP_SOCRCV
The following instruction can go in the dotted squares.
SP_SOCRCV
■
Executing condition
■
Argument
*1 Local devices and file registers per program cannot be used as setting data.
Processing details
This instruction reads receive data of a specified connection from the socket communication receive data area at the end
process performed after the instruction execution.
Instruction
Executing condition
SP_SOCRCV
Input/output
argument
Name
Description
Data type
Input argument
EN
Executing condition
Bit
Un
Dummy ("U0")
String
s1
Connection number (1 to 16)
ANY16
s2
Variable that stores control data
Array of ANY16 [0..1]
Output argument
ENO
Execution result
Bit
d1
Start number of the device that stores receive data
ANY16
d2
Variable that turns ON during one scan upon
completion of the instruction
d2[1] also turns ON at the time of error completion.
Array of bit [0..1]
Setting
data
Internal device
R, ZR
J
\
U
\G
Zn
Constant
K, H
Others
Bit
Word
Bit
Word
(s1)
(s2)
(d1)
(d2)
QnUDE(H)
LCPU
SP_SOCRCV
EN
ENO
d1
s1
s2
SP_SOCRCV
(EN, Un, s1, s2, d1, d2);
ENO:=
Un
d2
ST
Structured ladder/FBD
Содержание MELSEC System Q
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