Hakko Electronics V Series, Connection Manual

Page: 266 / 332

Appendix 5 Ethernet
App5-41
Server Communication Procedure
Data Request from V7 to Server
(1) Execute the receive wait thread using “int
HKEtn_RecvFrom()” on the application of
the server.
(2) Send the command from the V7 series to
the server using macro command SEND.
(3) The server analyzes the command and
takes the appropriate action.
User data format
Transfer from the V7 series
PLC Data Request from Server to V7
(1) A request is sent from the application
of the server to the V7 series.
Use “int HKEtn_ReadPlcMemory()” for
a memory request.
(2) (3) The V7 series reads the PLC memory.
(4)
The V7 series returns data read from
the PLC memory to the server.
Item Bytes
Packet bytes
2 + 2 + 1 + n
2
Transaction No. 2
Command (0x33) 1
User data n
PLC
Ethernet
(1)
(2)
(3)
SEND
(3)
V7 series
Server
Application
PLC
Ethernet
(1)
(2) (3)
(4)
V7 series
Server
Application