Modbus Integrator's Guide for the Cordex® CXC HP Controller | 3 - Using Modbus
Figure 3-2 Modbus connection configuration
Once a connection is made, data is polled automatically at the given device ID, address, and length as
shown.
Figure 3-3 Modbus data example
Device ID: Provides specific data of interest for that device ID.
Address: Provides the starting address of the data block.
Length: Provides the length of the data block.
Modbus Point Type: The register channel of the data. The example shows Command code 04 - Input
Register (read-only data).
Note: The data shown have “unknown” or unsupported values represented as the floating point value
of 0xFFFFFFFF (-1.#QB). Non-available data or data addresses that are not populated display as 0.
Page 10 0350114-J0 Rev N