6 FC1: Legally Relevant Functionalities
6 FC1: Legally Relevant Functionalities
6.1 Basic System
The main task of the Basic System is the I/O board interfacing and the digital
protocol interfacing for intelligent measurement devices like USMs or PGCs.
That means that the Basic System collects, monitors, and evaluates all legal-
ly relevant input data coming in via process boards and protocol ports. It is
able to perform adjustments for pressure and temperature measurements as
well as a geometry correction for ultrasonic gas meters, if parameterized.
From the fiscal point of view, the Basic System provides all measurement
data and status information needed for the volume conversion for the
Gas
Quality
and Flow Conversion AFBs.
In detail:
Data source Legally relevant data processed by the Basic
System
Gas meter • Meter progress
• Flow rate
• Flow direction information (if applicable)
• Status information
Pressure transmitter • Measurement, adjusted measurement
• Status, error information
Temperature
transmitter
• Measurement, adjusted measurement
• Status, error information
Gas quality
measurement device
• Measurements
• Status, error information
Table 13: Legally relevant measurement data
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