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App1-2
Appendix 1 PLC2Way
•
With the PLC2Way function, it is possible to communicate with PLCs without special program in
the same way as 1 : 1 connection.
Two PLCs that are connected to the V7 series are controlled at the same time, and memory
read/write operations are available with these two PLCs.
•
When the PLC2Way function is used, connection at the MJ port is possible via RS-232C or
RS-485 (2-wire connection).
With RS-232C, one PLC can be connected; with RS-485, a maximum of 31 PLCs can be
connected.
•
Constant reading/sampling of PLC data connected to the PLC2Way
When read/write memory addresses are preset on the temperature control network/PLC2Way
table, background data transfering is performed at regular intervals. It is also possible to save the
read data in the V7 internal buffer, SRAM or CF card.
•
Data transfer between PLCs
The PLC memory data can be transferred to another PLC in blocks using a macro command.
For the description of 1 : 1 connection, refer to “Chapter 1.”
Hereunder the PLC connection at the MJ port and settings required for PLC2Way connection are
described.
Limitations on Connection at PLC2Way
There are some limitations on the connection at the MJ port.
1.
It is not possible to make a selection for code and text processing in the communication parameter
setting.
Code:
Fixed to DEC or BCD appropriate for the PLC.
Text processing:
Fixed to [LSB
→
MSB].
2.
Even if a communication error occurs, it is not possible to stop communications.
Error codes are stored in $s730 to 761 for each station.
3.
Connections using both the PLC2Way and multi-link 2 functions are possible at the same time
when the system program is version 1.010 or later and the V-SFT editor is version 2.0.2.0 or later.
PLC
RS-232C
RS-422/RS-485
RS-422/RS-485
PLC1
CN1
MJ2/1
PLC2
PLCn (n = 1 ~ 31)
F1
F2
F3
F4
F5
F6
F7
SYSTEM
POWER
V7 series
(2-wire connection)
(n = 1 to 31)
Summary of Contents for V Series
Page 1: ...V Series...
Page 35: ...2 10 2 Allen Bradley PLC Please use this page freely...
Page 41: ...3 6 3 Automationdirect PLC Please use this page freely...
Page 49: ...6 4 6 FANUC PLC Please use this page freely...
Page 53: ...7 4 7 FATEK AUTOMATION PLC Please use this page freely...
Page 79: ...12 8 12 KEYENCE PLC Please use this page freely...
Page 95: ...14 8 14 LG PLC Please use this page freely...
Page 119: ...16 20 16 MITSUBISHI ELECTRIC PLC Please use this page freely...
Page 135: ...20 4 20 SAIA PLC Please use this page freely...
Page 155: ...24 12 24 Siemens PLC Please use this page freely...
Page 163: ...27 4 27 TOSHIBA PLC Please use this page freely...
Page 169: ...29 4 29 Toyoda Machine Works PLC Please use this page freely...
Page 185: ...33 6 33 Yokogawa Electric PLC Please use this page freely...
Page 215: ...App2 8 Appendix 2 n 1 Connection Multi link 2 Please use this page freely...
Page 221: ...App3 6 Appendix 3 n 1 Connection Multi link Please use this page freely...
Page 225: ...App4 4 Appendix 4 1 n Connection Multi drop Please use this page freely...
Page 317: ...App6 48 Appendix 6 Universal Serial Communications Please use this page freely...