Hardware Manual COMBILOG 1020
61
5.4 Arithmetic
Channel
By means of the Arithmetic Channel sensor channels and con-
stants can be connected with eachother via arithmetic operations.
The result is allocated to the Arithmetic Channel. The formula can
contain up to 20 operands. The calculation is performed with a
stack depth of 20. The value is handled as a
4-byte floating point format with 24 significant bits according to
IEEE, standard 754. The full scale is –10
37
to +10
37
.
A typical application for the Arithmetic Channel is e.g. the deter-
mination of a value that cannot be measured directly, but calcu-
lated from other values (e.g. power as a product of voltage and
current). Or the Arithmetic Channel is used for further mathemati-
cal preparation of a measuring signal, in order to obtain a particu-
lar desired format, linearization or similar.
Special functions for which the existing commands are not suffi-
cient, can be carried out by a user specific download program for
the COMBILOG 1020. For this case, some implemented special
functions can be used for assistance.
Note:
The calculation time of an Arithmetic Channel is 0.6 ms.
The overall calculation time is the sum of the times of all oper-
ands in the formular plus 0.6 ms.
Summary of Contents for COMBILOG 1020
Page 1: ...COMBILOG 1020 Datalogger Hardware Manual Version 3 09...
Page 2: ...Hardware Manual COMBILOG 1020 2 Issue 03 11 2005 Technical data are subject to change...
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Page 86: ...Hardware Manual COMBILOG 1020 86 Bild 8 1 Example Master Slave System...
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