Manual

Table Of Contents
DobotVisionStudio User Guide
Issue V4.1.2 (2022-06-08) User Guide Copyright © Yuejiang Technology Co., Ltd.
43
Modbus is a master/slave protocol. One node is the master node, and the other nodes that use
Modbus protocol in communication are slave nodes. Currently the algorithm platform only supports
the master station.
To use Modbus communication, you need to establish a communication connection first. Then you
can create Modbus communication in Devices to establish connection, as shown in the following
figure.
Modbus supports TCP and serial ports. Different communication modes require different
communication parameters. For details about how to set the parameters, see TCP and Serial Port
communication.
Mitsubishi PLC Communication Parameters
Function Code
It includes read/keep register, read/input register, and write multiple registers.
Main/Sub Mode
Main is supported only.
Protocol Type
It includes RTU and ASCLL.
Data Type
It includes 16-bit and 32-bit.
Send Sequence
It includes four types: "ABCD”“ BADC”“ DCBA”“ CDAB
Device Address
The sub device address.
Register Address
Set it according to according to actual demands.
Register Number
Set it according to according to actual demands.
Polling
After enabling, the device will read information in a polling way.
Data Upload
After enabling, data will automatically upload.