Measurement Tree
The Measurement Tree organizes the device measurements into a structure that is recognized by Power Monitoring Expert and that determines how you access these measurements in the software. The Measurement Tree consists of managers, modules, and registers.
Managers
Managers are at the top level of the tree. Managers group together modules of the same type. For example, a manager called Maximum Readings could contain the modules Max Current, Max Frequency and Max Voltage. You are free to choose a name for a manager that best meets your needs. Choose a name that is relevant to the type of modules it contains. You can create up to 127 managers.
Modules
Modules are contained inside managers. Modules group together related registers. For example, a module called Max Current could contain the registers Max Current A, Max Current B, Max Current C. You are free to choose a name for a module that best meets your needs. Choose a name that is relevant to the type of registers it contains. You can create up to 4095 modules inside a given manager.
Registers
Registers are contained inside modules. (ION) Registers are linked to the Modbus registers and hold the measured values. You can map registers to a Modbus address, then use Power Monitoring Expert to read and write data to this Modbus device. You can create up to 255 registers per module.
Factory registers
You cannot add or remove Factory registers, but you can edit them. All Factory registers are initially set to a default constant value. You can change these constant values, or map the registers to a valid Modbus address.