RMG ERZ2000-NG, Operating Manual

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4 Communication and bus systems
Manual ERZ 2000-NG · EN07 · 2019, May 13th
152
The ERZ2000-NG receives information from the data type about how the information
coming from the PGC must be converted.
F 7020 means that the calorific values is
delivered simply as an exact floating point number (float). The following data types
are used:
D: Double exact floating point number (double float)
F: Single exact floating point number (double float)
U: 32-bit unsigned integer (long)
u: 16-bit unsigned integer (short)
An implemented formula evaluation enables division and use of parentheses in addi-
tion to multiplication and addition.
Example unit conversion
A value coming from the PGC can be converted using a factor. For instance, to
convert the calorific value with the unit kWh/m3 to MJ/M3, "F7020*3.6" must be
multiplied in coordinate
IL01 .
Access Line Name Value Unit
E § 1 Calorific value MJ/m3
Example addition rules
It is possible that there is no entry field available in the ERZ2000-NG for a gas com-
ponent measured by the PGC, such as cyclo-pentane in register 8290. In this case,
the cyclo-pentane can be added to the share of another component, e.g. neo-
pentane. Then, the value "F8264+F8290" must be entered in coordinate
IL13 .
Value
F8264+F8290
Example constants
It is possible that components which are provided to the ERZ2000-NG by the PGC
are not available, such as hydrogen sulphide. Therefore, they are zeroed as follows:
Value
0
F7020*3.6