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6. V-Link 3-21
Serial Communications
6. V-Link
V-Link
• “V-Link” is the network where the computer reads from and writes to the internal
memory of the V7 series, memory card, PLC memory or temperature control/PLC2
memory using a dedicated protocol.
• Use the MJ port of the V7 series for connection with a general-purpose computer. For
connection with the PLC using a temperature controller or the PLC2Way function, use
the other MJ port and use CN1 for communications with the PLC. Data of the PLC or
temperature controller can be collected through communications with the V7 series.
Data collection is available even between the products of different manufacturers.
• Either signal level RS-232C or RS-485 can be selected. With RS-232C, one V7 series
can be connected; with RS-485, a maximum of 31 V7 series can be connected.
<RS-485 connection>
PLCPC
RESET
disc
F1
F2
F3
F4
F5
F6
F7
SYSTEM
POWER
V7 series
Dedicated commands
Read
Write
PLC
RS-232C
RS-422
RS-485
PLC
PLC
RS-485
RS-232C
RS-422
RS-485
CN1
CN1
CN1 MJ2
MJ2/1
MJ2/1 MJ1
RESET
disc
F1
F2
F3
F4
F5
F6
F7
SYSTEM
POWER
F1
F2
F3
F4
F5
F6
F7
SYSTEM
POWER
F1
F2
F3
F4
F5
F6
F7
SYSTEM
POWER
Temperature controller
inverter or PLC
Local
Port 1
Local
Port 2
Local
Port 31