Hakko Electronics Monitouch V9 Series, Connection Manual

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1.3 Connection Methods
1-17
n : 1 Connection (Multi-link2) (Under Development)
Overview

One PLC is connected to a maximum of four V9 units. The V8, V7, and V6 series can be used together.

Multi-link2 enables you to establish an original network consisting of a master V9 of local port No. 1 and slave V9 units of
local port Nos. 2, 3, and 4. The master V9 communicates with the PLC directly, and the slave V9 units communicate with
the PLC through the master.
- Connection example 1:
- Connection example 2:

You can make settings for multi-link2 in [Communication Setting] for PLC1. Therefore, multi-link2 connection is not
possible concurrently with a network connection that uses a “CUR-xx” communication interface unit (under
development).
 Multi-link2 enables sharing of data stored in PLC1 device memory among the V9 units. However, sharing data in PLC2 -
PLC8 is not possible.
 The communication speed between the master and the PLC depends on the setting made on the PLC. The maximum
communication speed between V9 units is 115 kbps, which is higher than the one available with multi-link connection
described in “ n : 1 Connection (Multi-link) (Under Development)”.

For PLCs that support multi-link2 connection, see Connection Compatibility List provided at the end of this manual.
The connection between the master and the PLC is the same as the one for 1 : 1 connection.
RS-485 (2-wire system) connection is adopted to connect a master with slaves. At this time, use Hakko Electronics’ cable
“V6-MLT” for the multi-link2 master.
 When connecting the V6 series together with the V9 series, note the following points:
- When V609E, V606e, V606, or V606i is connected as a master, only V609E, V606e, V606, or V606i can be connected as
a slave.
The V9 series cannot be used as a slave in this case.
- Multi-link2 cannot be used for the V6 series with which temperature control network/PLC2Way is used.
- Multi-link2 may not be used on the V6 series depending on its hardware version.
For more information, refer to the V6 Series Hardware Specifications manual.
 If the master station becomes faulty (communication error), the master and slave stations do not work, and as a result,
“Communication Error Time-Out” is displayed. If a slave station becomes faulty, “Data Loading...” is displayed due to a
communication error only on the faulty station.

The ladder transfer function is not available for a multi-link2 connection.
PLC
RS-232C
RS-422
RS-485
CN1 MJ2 CN1 CN1 CN1
Hakko Electronics’ cable “V6-MLT” (3 m)
RS-485 (2-wire system) connection
Master
Local port 1
Slave
Local port 2
Slave
Local port 3
Slave
Local port 4
PLC
RS-232C
RS-422
RS-485
MJ2 MJ1 MJ2 MJ2 MJ2
Hakko Electronics’ cable “V6-MLT” (3 m)
RS-485 (2-wire system) connection
Master
Local port 1
Slave
Local port 2
Slave
Local port 3
Slave
Local port 4
Terminal
block
Terminal
block
Terminal
block