Introduction Manual Conventions
Notational Conventions
Hexadecimal Values
Hexadecimal values in this manual are expressed as follows:
• Values that are in hexadecimal notation are shown as two or four (4) characters followed by
the letter "h.” Each character can have a value from 0 through F. For example, 9C3Fh
• All other numbers are in decimal notation.
Ranges
Ranges, or parameters, expressed in this manual are expressed a pair of values separated by
ellipses. For example, 0…5 include numbers 0 and 5 and all of the values in between.
Register Notation and Usage
Registers are a part of the meter memory that contains the addresses that are used to hold specific
kinds of information. The following registers are contained in the APX meter. The information
stored in these registers is usually configured using the iConFig application software.
Billing Registers
The APX meter contains two Billing Registers. The Billing Registers store:
• Selected consumption readings
• The associated Maximum Demand readings
• The associated Cumulative Demand or Continuously Cumulative Demand.
Previous Demand Registers
The Previous Demand registers contain a snapshot of the Billing Registers captured during the
last Demand Reset. Any data in these registers is overwritten during the reset.
Status Register
The status register store meter dependent information (e.g., Low Battery, Meter errors, Demand
overloads)
History Log Register
The History Log registers store data for selected events that may occur during meter operation.
More than 40 different events can be recognized and the results stored in these registers.
Version 1.0 Introduction 1-3
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