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1-8 1. Before Connecting to PLC

Wiring (1 : 1 Connection)

Prepare the communication cable with the PLC on your side.

Refer to the following information for the cable.

For more information on the connection to respective PLCs, refer to “Chapter 2” and later.

RS-232C Connection

• Connect the shielded cable either to the V7 series or PLC side. This connection diagram shows

the case where the shielded cable is connected on the V7 series side.

When connecting the shielded cable to the V7 series side, connect it to pin 1 of the connector or

the connector case cover.

The metal shell of the modular jack 2 on the V706 is used as SG (signal ground). Connect the

shielded cable to the metal shell of modular jack 2.

• Twisted pairs of 0.3 mm sq. or above are recommended.

• If noise disturbs communications, use twisted pairs between SD/SG and RD/SG.

DANGER

Electric shock hazard

Shut the power off before connecting cables.

SHELL

Shield

To the PLC’s RS-232C port

Receive data

Send data

D-sub 25-pin (male)RJ-45 8-pin

V Series

CN1

V706

MJ2

*1 Pin No. 1 of CN1 is used as FG.

The metal shell of the modular jack

2 on the V706 is used as SG.

Signal

Name

Pin No. Pin No.