II - DCE FEL ČVUT v Praze

O
OB
Organization
blocks
P
Parameter
assignment
Parameter
assignment tool
Parameter,
dynamic
Parameters, static
Primary variable
I/O Modules with Intrinsically-Safe Signals
C79000-G7076-C152-04
Organization block
Organization blocks (OBs) represent the interface between the operating
system of the CPU and the user program. The sequence of user program
processing is defined in the organization blocks.
Setting values to control the behavior of a module or a field device.
Glossary
A software tool which can be used to set the parameters, for example, of a
smart field device.
Unlike static parameters, the dynamic parameters of a module can be altered
online in the user program.
Unlike dynamic parameters, the static parameters of a module can only be
altered in STEP 7 or COM PROFIBUS and not in the user program.
Variable for the chief measured value of a HART analog input, for
example, pressure. Other measurements can also be implemented for the
HART field devices, for example, temperature. The results are stored in the
secondary variable, tertiary variable, quarternary variable, etc. In the case of
a HART analog output, the primary variable contains the manipulated
value.
Glossary-9