8 BUILT-IN ETHERNET FUNCTION INSTRUCTIONS
8.2 Socket Communications Function Instructions
631
8
Reading socket communications receive data
S(P).SOCRDATA
This instruction reads the data in the socket communication receive data area.
■Descriptions, ranges, and data types
■Applicable devices
■Control data
*1 The contents in the "Set by" column mean as follows:
System: The CPU module stores the execution results of the S(P).SOCRDATA instructions.
Ladder diagram Structured text
ENO:=S_SOCRDATA(EN,U,s1,s2,n,d);
ENO:=SP_SOCRDATA(EN,U,s1,s2,n,d);
Operand Description Range Data type Data type (label)
(U) Dummy Character string ANYSTRING_SINGLE
(s1) Connection number 1 to 8 16-bit unsigned binary ANY16
(s2) Head device number for storing the control data Refer to Control data
(Page 631)
Word ANY16_ARRAY
(Number of elements: 2)
(d) Head device number for storing the read data Word ANY16
(n) Number of the read data (1 to 1024 words) 1 to 1024 16-bit signed binary ANY16
Operand Bit Word Double word Indirect
specification
Constant Others
X, Y, M, L,
SM, F, B, SB
U\G T, ST,
C, LC
T, ST, C, D,
W, SD, SW, R
U\G Z LC LZ K, H E $
(U)
(s1)
(s2)
(d)
(n)
Device Item Description Setting range Set by
*1
(s2)+0 System area
(s2)+1 Completion status The status at the completion of the instruction is stored.
0000H: Completed successfully
Other than 0000H: Completed with an error (error code)
For error codes, refer to Built-in Ethernet communication manual.
System
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