User's Manual
COMPANY CONFIDENTIAL
RF-TWACS Based AMR System DCSI CUSTOMER PRODUCT SPECIFICATION
May 30, 2003 Application Notes – Rev. 1 23
transponders organizes data in a series of “register files.” Each register-file is a series of
ports with consecutive (and therefore calculable) addresses.
4.4.1.2.1 “Ported” Registers
The following registers are arranged in a register file form to permit register number
computation by “port number” and service type:
• RMTR Serial Number, and Product Number
• Present Total Consumption
• Frozen Total Consumption
• RMTR Status
• RMTR RF Engineering Data
4.4.1.3 RCE Tables
This design endeavors to fully support the transport of ANSI C12.19 tables, while at the
same time deploying a minimally C12.19 compliant implementation. Full compliance
becomes possible when the Intelligent End Device (IED) that meters the commodity
becomes C12.19 compliant.
4.4.1.3.1 Command Code
The following commands are supported at a minimum within the RF-TWACS protocol in
an effort to support ANSI C12.19 compatibility:
• Read Entire Table
• Read Partial Table using Offset method
• Write Entire Table
• Write Partial Table using Offset method
4.4.1.3.2 Standard Tables
• Table 00, General Configuration
• Table 01, General Manufacturer’s Identification
4.4.1.3.3 ANSI C12.19 Manufacturer’s Tables
ANSI C12.19 Manufacturer’s Table numbers range from 2048 to 4095. Note that the first
of these is known as table number 2048, and also manufacturer’s table number zero.
• Table 2048, MFG_ID
• Table 2049, 24 Hour Interval Data Table
• Table 2050, Unsatisfied-Daily-Frozen-Read Countdown
• Table 2051, RMTR Configuration
• Table 2052, RMTR Status
• Tables 2176-2207, Acquisition List
4.4.2 Conversion Factors
A consumption reading is usually conveyed in pulses, and requires multiplication by an
appropriate scaling factor to be converted to a billing unit of measure. It is important that
the installer of the RMTR keep good records regarding the type of unit that it is
connected to. This data must be conveyed to the CCE so that it can choose the