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A-3 Non-Omron devices to NQ-Series configurations
A-3-1 NQ as Modbus RTU Master and ModSim (Slave-
Simulation Software)
There are two options available in Modbus RTU: Modbus, 1 word length commands and Modbus, 16 word
length commands. If Modbus driver is selected, all registers should be available in the slave.
In the following example ModSim (Modbus Slave Simulator www.wintech.com) is used to the check whether the
Modbus RTU master is communicating properly. The settings of the Modbus slave unit used should be set
according to settings of ModSim to ensure a good communication.
To perform a successful communication proceed as follows.
1 Create a new project in NQ-Designer.
2 Right-click the Nodes folder and click Add....
3 Set all data as shown in the screenshot.
4 Create PLC tag with address HR400100.
5Add a Data Entry object with tag address HR400100 on screen1.
6 Download the application and firmware to NQ-Series.
7 Open ModSim.
8Click New on File menu.
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