Omron V330-F Series Quick Start Manual page 41

Variable name
Recv
BOOL
Error
BOOL
● Variables for Initializing Socket Service Instructions
Variable name
NULL_SOCKET _sSOCKET
NULL_ ARRAY
ARRAYOFBYTE_1 [0..0] OF
BYTE
NULL_ ARRAY
ARRAYOFBYTE_2 [0..0] OF
BYTE
Data type
Receive processing: Required (TRUE)/Not required
(FALSE)
* If both send processing and receive processing are
required:
The program will wait for the arrival of receive data
after send processing. The program will go to receive
processing after checking the arrival of receive data.
Specify this value when response data is sent back to
the command sent.
Send/Receive Processing Required Setting Error Flag
(This flag is set if there is a setting error.)
Data type
Internal socket service instruction initialization data
(Retain constants: Enabled)
Initial value (Handle:=0, SrcAdr:=(PortNo:=0, IpAdr:=''),
DstAdr:=(PortNo:=0, IpAdr:=''))
(Used for all socket instructions.)
Internal send socket service instruction initialization
data (Retain constants: Enabled)
Initial value [0] (Use for the SktTCPSend instruction)
Internal receive socket service instruction initialization
data (Retain constants: Disabled)
Initial value [0] (Use for the SktTCPRcv instruction)
9. Project File
Description
Description
38