Modbus RTU Communication Data Bus Fundamentals
162 ECLYPSE User Guide
Device Addressing
Device addressing allows the coordinated transfer of messages between the master (the
ECY Series Controller) and the slave Modbus RTU device. For this, each device connected
to the Modbus RTU data bus is identified by its address.
About the Device Address
Each slave device must have its own unique address number in the range from 1 to 247.
Refer to the device’s hardware installation guide for information about how to set its address
number.
Set the Modbus device parameters with EC-gfxProgram in the Resources Configuration
window, Modbus Device block.
Figure 14-7: Setting the Modbus Device Parameters in EC-gfxProgram’s
Resources Configuration Window
See the EC-gfxProgram User Guide for more information.