Modbus Rtu Communicaiton - SMB MAT-LC-C Series User Manual

DIT-16 and DQT-16. Or right-click the relay module and select "Scan Device", and the expansion
modules connected to the LC-C06 will be displayed under the relay module.
Step 3. Refer to the chapter "2.3 Set up Communication" to set the communication
between LC-C06 and the host computer
Step 4. Running, debugging and monitoring
1) Select the menu item "Online" → "Login to..." to establish a connection between the
application and the LC-C06 and enter the online state. Then, select the menu item "Debug" →
"Start" to make the application program in LC-C06 start to run, at this moment, the current project
can be monitored and debugged.
2) Write 1 to %QX0.2 in the Internal I/O mapping table of the CODESYS software, then the
output point Q0.2 of the DQT-16 module will be lit. At the same time, the input points I2.0 and I2.4
of the DIT-16 module are lit, and the values of %IX2.0 and %IX2.4 are changed to 1 in the
Internal I/O mapping table of the DIT-16 module.
7.1.2

Modbus RTU Communicaiton

In this instruction, you will be guided to creat an example application to get familiar with Modbus
RTU function of C06/C07.
1. Preparation
Table 7-2 Example components of Modbus RTU communicaiton
Component
Programming device PG\PC
Power module: PWR-020S1
Master module: LC-C06
SMB-MAT-HMI
Inverter
Standard network cable
2. Network connection
◆ LC-C06 serves as master of Modbus RTU and communicates with inverter.
Install programming device with CODESYS V3.5SP18
Patch6, to configurate, program and debug LC-C06 motion
controller.
Supply 24VDC power for LC-C06 and HMI.
CPU executes user program, supplies 5V voltage to bus of
LC-C06 system and communicates with other modules via
Ethernet interface.
SMB-MAT-HMI serves as Modbus master and communicates
with LC-C06.
Inverter, which supports Modbus protocol, serves as slave of
Modbus RTU and communicates with LC-C06.
Connects LC-C06 to programming device.
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Function