Ny-Series Instructions Reference Manual (W560 - Omron NY532-5400 Reference Manual

2 Instruction Descriptions
Function
The SktTCPRcv instruction stores the data in the receive buffer for the socket that is specified with
Socket in receive data RcvDat[]. The number of bytes to store is specified with Size. The number of
bytes that is actually stored is assigned to RcvSize. If there is no data in the receive buffer, the instruc-
tion waits for data for the time that is set with timeout time TimeOut. Storage of the data to RcvDat[] is
completed when the instruction is completed normally (i.e., when the value of Done changes to TRUE).
The data type of Socket is structure _sSOCKET. The specifications are as follows:
Name
Socket
Handle
SrcAdr*
PortNo*
IpAdr*
DstAdr*
PortNo*
IpAdr*
* These members are not used for this instruction.
Related System-defined Variables
Name
*1
_EIP_EtnOnlineSta
*2
_EIP1_EtnOnlineSta
*3
_EIP2_EtnOnlineSta
*4
_EIPIn1_EtnOnlineSta
*1 Use this variable name for an NJ-series CPU Unit.
*2 Use this variable name for port 1 on an NX-series CPU Unit, or for an NY-series Controller.
*3 Use this variable name for port 2 on an NX-series CPU Unit.
*4 Use this variable name for the internal communication port on an NY-series Controller.
Additional Information
Refer to the NJ/NX-series CPU Unit Built-in EtherNet/IP Port User's Manual (Cat. No. W506) or NY-
series Industrial Panel PC / Industrial Box PC Built-in EtherNet/IP Port User's Manual (Cat. No. W563)
for details on socket services.
2-1072
Meaning Description
Socket Socket
Handle Handle for data commu-
nications
Local address Local IP address and
port number
Port number Port number
IP address IP address or host
name. A DNS or Hosts
setting is required to use
a host name.
Destination Destination IP address
address and port number
Port number Port number
IP address IP address or host
name. A DNS or Hosts
setting is required to use
a host name.
Meaning
Online
Data type
_sSOCKET
UDINT
_sSOCKET_
ADDRESS
UINT
STRING
_sSOCKET_
ADDRESS
UINT
STRING
Data
type
BOOL This variable indicates when built-in EtherNet/IP
port communications can be used.
TRUE: Communications are possible.
FALSE: Communications are not possible.

NY-series Instructions Reference Manual (W560)

Valid range Unit Default
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data type.
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1 to 65535 0
Depends on
data type. ---
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1 to 65535 0
Depends on
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data type.
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Description