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4
1. Ethernet 4-1
Network Communications
1. Ethernet
Ethernet
• Transferring data in memory
Data in memory can be transferred to the V7 series on the Ethernet or to the PLCs
linked to the V7 series as a host by using macro commands (EREAD/EWRITE).
• Communications between the server and the V7 series
- “HKEtn10.dll” (for UDP/IP protocol) is provided so that the user can create an
original application by using Visual C++ or Visual Basic, etc. to allow the server to
access the memory device, such as V7 internal memory, memory card or the PLC
memory linked with the V7 series as a host........ (a)
- The macro command (SEND) enables the V7 series to access the server........ (b)
run
PLC
Ethernet
V7
RS-232C
RS-485
PROGRAMMER
F1
F2
F3
F4
F5
F6
F7
SYSTEM
POWER
F1
F2
F3
F4
F5
F6
F7
SYSTEM
POWER
<PLC>
Ethernet
<V7>
RS-232C
RS-485
PROGRAMMER
(a)
(b)
F1
F2
F3
F4
F5
F6
F7
SYSTEM
POWER
F1
F2
F3
F4
F5
F6
F7
SYSTEM
POWER
Server
Application