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1. Before Connecting to PLC 1-1

1. Before Connecting to PLC

Types of Connection

There are four types of connection between MONITOUCH(es) and PLC(s).

1 : 1 Connection

Outline

One set of the V7 series is connected to one PLC (1 : 1 connection).

The wiring diagrams and the description of settings for connection to PLCs in 1 : 1 connections can be

found from Chapter 2 onward.

The host link unit of the PLC or the CPU port is used and the V7 series (master station) establishes

communications according to the protocol of the PLC. Consequently, it is not necessary to have the

dedicated communication program on the PLC (slave station). The V7 series reads the PLC memory

for screen display. It is also possible to write switch data or numerical data entered through the keypad

directly to the PLC memory.

Connection

The interface used for 1 : 1 connection varies depending on the V7 series model.

• CN1 (D-sub 25-pin) for V7 series and V706 + DU-01

• MJ2 (RJ-45 8-pin) for V706

For details on wiring and settings for 1 : 1 connection, refer to page 1-8.

PLC

CN1

RS-232C or RS-422 (RS-485)

V7 series

PLC

Read

Write

V7 series

MJ2

. . .

RUN

STOP

PLC

CN1

V7 series

V706 + DU-01

V706

Hakko Electronics V Series User Manual

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