Delta DVP-15MC Series, Operation Manual

Page: 320 / 972

Chapter 8 Logic Instructions
8-233
8_
5
ET H_Socket_Receive
Execute
ET H_Socket_Receive0
Abort
Done
Received
Receiving SocketNum
ReceiveMode
DataSaveMode
Receive_Buffer_Address
Receive_Length
Received_Length
Busy
Active
Abor ted
Err or
Er ror ID
R_Mode
R_Ex
1
R_Abort
R_SM ode
R LTH _
R_BFA
R_Bsy
R_RLT H
R_Done
R_RING
R_REC D
R_ r rID E
R_Act
R_ r r E
R_Abt
6
ET H_Socket_Close
Execute Done
ET H_Socket_Close0
SocketNum Busy
Error
ErrorID
C_Ex
1
C_ r rID E
C_Done
C_ r r E
C_Bsy
7
E TH_Socket_Status
Enable
ET H_Socket_Status0
SocketNum
Valid
Conected
Received
Closed
Send
Opening
Receiving
Closing
Sending
Error
ErrorID
STA_En
1
S TA _Send
S TA _C LO
S TA _Valid
S TA _R EC
S TA _C ON
S TA _Err
S TA _S ING
S TA _O ING
S TA _C ING
S TA _R ING
S TA _Err ID

Operation steps and data exchange description
1. The variables S_BFA and R_BFA are respectively bound to the addresses %MB200 and
%MB600. After the program compiling is successful and download is completed, the online
is performed. After the online is activated, the standard MODBUS TCP data
“
00 00 00 00
00 0b 00 10 10 00 00 02 04 aa bb cc dd
”
are written to 17 consecutive %MB registers
starting from %MB200.
2. Execute ETH_Socket_Manage instruction first by setting M_En to TRUE and then setting
M_SEN to TRUE. After M_SR variable changes to TRUE, execute ETH_Socket_Config by
setting CON_Ex variable to TRUE.
3. After the execution of ETH_Socket_Config instruction is competed, execute
ETH_Socket_Open instruction by setting O_Ex to TRUE. The controller starts to build the
link to the target host. Current connection state can be known by checking the output of
ETH_Socket_Status instruction.