4 FC1: General Information
from existing values (such as actual values,
differential values, averages, or drag indicators)
User archives
Data logging
Modbus
Modbus communication for a single Modbus
communication line
Notification
Sending of warning and alarm messages via email
and TCP/IP protocol to a selectable set of email
addresses
Table 7: Examples for non-legally relevant AFBs
4.3.4 FC1: AFB Structure for Common Applications
The device software of a basic FC1 flow computer consists of the Basic
System
, one Flow Conversion AFB and one Gas Quality AFB. This
configuration implements a typical “one stream, one flow direction”
application.
AFB
Flow Conversion
AFB
Gas Quality
Conversion factor C,
Density ρ,
Heating values H
Gas meter data GM
Basic System
Gas quality data GQ
Pressure data p
Temperature data T
Figure 1: Data flow for a basic “one stream, one flow direction” application
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