Cable Electronics DVP14 Specifiche Pagina 209

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App2-2 Appendix 2 n : 1 Connection (Multi-link 2)
This multi-link connection is available with almost all the PLC models that support 1 : 1 connection
(refer to the “Appendix”).
(The connection between the master station and the PLC is the same as the one for 1 : 1
connection.)
Use the RS-485 2-wire connection between stations of the V7 series. Please use Hakko
Electronics’ multi-link 2 master cable (V6-MLT) for connection between the master station (local
port 1) and the slave station (local port 2).
In the following cases, multi-link 2 connection is not available.
1. A communication interface unit (example: OPCN-1, CC-LINK, Ethernet, etc) is used.
2. The V6 series (master or slave station) is used for the temperature control network or
PLC2Way function.
The V7 and V6 series can be used together. The V6 series can be the master station.
(However, when V606/V606i is the master station, the slave station must be V606/V606i. Also,
depending on the hardware version of the V6 series, multi-link 2 connection may not be supported.
Refer to the V6 Hardware Specifications.)
Wiring
Connection
For V7 Series:
(a) Connection between PLC V7 master station
The communication parameter setting and connecting method are the same as those for 1 : 1
connection.
(Refer to “Chapter 2” to “Chapter 33.”)
(b)(c) Connection between V7 series master station V7 slave station
The connecting port for the V7 series master station depends on the selection for [Multi-Link]
(either [Modular Jack 1] or [Modular Jack 2]) on the V-SFT editor. Selection of [Modular Jack
2] is recommended. ([Editor Port] is set as default for [Modular Jack 1].)
The connecting port of the V7 series slave station should be CN1. It is recommended that
CN1 be equipped with a terminal converter “TC485” (set to 2-wire connection).
The multi-link 2 master cable (b) (V6-MLT) is 3 m long.
If the distance (c) between the V7 series master station and the V7 series slave station is
longer than 3 m, use a terminal block and connect the cables.
(d)(e) Connection between V7 series slave station V7 slave station
Use the RS-485 2-wire connection.
It is recommended that CN1 be equipped with a terminal converter “TC485” (set to 2-wire
connection).
(b)(c)(d)(e) The maximum length between V7 series should be 500 m.
* To avoid line-noise problems, connect one terminal only so that the shielded frame ground of each
cable will not be connected between the V7 series.
The shielded frame ground of V6-MLT must be connected to the V7 series master station.
PLC
CN1CN1 MJ2
(a)
(b)
(c)
(d) (e)
CN1CN1
Communications between V7 series: RS-485 (2-wire), maximum length = 500 m
V7 master station
(= Local Port 1)
V7 slave station
(= Local Port 2)
V7 slave station
(= Local Port 3)
V7 slave station
(= Local Port 4)
Te rm i na l
block
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