Slave Communication; Modbus Rtu; Modbus Tcp/Ip; Other Connections - Hakko Electronics Monitouch V9 Series Connection Manual

1. Overview
1-42
1.3.4

Slave Communication

Connecting via V-Link, Modbus RTU, or Modbus TCP/IP is applicable to slave communication using the V9. V-Link and
Modbus RTU are used for serial communication, and Modbus TCP/IP is used for Ethernet (TCP/IP) communication.
V-Link
 "V-Link" is the network where the PC reads from and writes to the internal device memory of the V9 series, memory card
device memory, or PLC1 to 8 device memory using a dedicated protocol.
 You can make settings for V-Link communication in [Communication Setting] for the logical ports PLC2 - PLC8.
A communication port is selectable from CN1, MJ1, and MJ2.
 For more information, refer to "V-Link" in book 3 of the V9 Series Connection Manual.

MODBUS RTU

 The V9 series is connected to a Modbus RTU master via serial connection.
 The device memory table for Modbus slave communication is prepared for the V9. The master is allowed to gain access to
the device memory table and read/write the PLC data.
 For more information, refer to the Modbus Slave Communication Specifications manual separately provided.

MODBUS TCP/IP

 The V9 is connected to a Modbus TCP/IP master via Ethernet communication.
 The device memory table for Modbus slave communication is prepared for the V9. The master is allowed to gain access to
the device memory table and read/write the PLC data.
 For more information, refer to the Modbus Slave Communication Specifications manual separately provided.
1.3.5

Other Connections

For connection to a serial printer that is not in 8-way communication, serial ports of MJ1 and MJ2 are used.
Dedicated commands
Read
Write
PC
V9 series
PLC