Advantech AE Technical Share Document Date Category Abstract Keyword Related Product 2015 / 04 / 08 SR# ■ FAQ □ SOP Related OS Microsoft Windows7 How to use modsim to simulate the Modbus device. Modbus. N/A Problem Description: How to use modsim to simulate the Modbus device. Brief Solution - Step by Step: 1. Execute modsim32.exe 2. Select Connection -> connect->Com port or Modbus/TCP Page 1 3. Key in port number 4. File -> New, Configure the Device ID, Point type, Address, Length Page 2 5. We can use Display -> Show traffic to monitor the communication of device & server. Reference: Page 3