1-22 1. Overview
Connection Method 4
Connecting the CN1 of the master to the MJ1/MJ2 of the slaves
(a) Connection between master and PLC
Choose the connection port between MJ1 and MJ2.
The communication settings and connection method are the same as those for 1 : 1 connection.
(b), (d), (e) Connection between master and terminal block
For the connecting port of the master, choose CN1. For the slave, choose between MJ1 and MJ2.
Use the RS-485 (2-wire system) connection. Use twisted-pair cables of 0.3 mm sq or greater. The maximum length of
the wiring is 500 m.
(c) Connection between terminal block and slave
The connecting port of the slave should be MJ1 or MJ2.
Use the “V6-MLT” cable (3 m).
Communication between V9 units: RS-485 (2-wire system), maximum length = 500 m
*2
Master
(= Local port 1)
Slave
(= Local port 2)
Slave
(= Local port 3)
Slave
(= Local port 4)
Terminal
block
*1 0.5 m recommended (1.0 m maximum)
*2 Use twisted-pair cables of 0.3 mm sq. or greater between terminal blocks.
Terminal
block
Terminal
block