Scaling Of Physical Units - Lenze 8400 StateLine C Reference Manual

8400 StateLine C | Reference manual
Working with the FB Editor
Basics
Signal type entry
In general, it is possible to assign a certain signal type to the inputs and outputs of the
Lenze function blocks. There are e.g. digital, scaled, position, acceleration and speed
signals.
 A corresponding ending (preceded by an underscore) is added to the identifier of the
corresponding input/output to indicate the signal type.
Signal type entry
& port symbol
in the FB Editor
_a
_v  / 
_p  / 
15.1.3

Scaling of physical units

With regard to the parameter setting & configuration of the controller it is very helpful to
know the signal types and their scaling listed in the following table, which are used to
process physical values (e.g. an angular velocity or position) in the function block
interconnection.
Signal type entry
& port symbol
in the FB Editor
_a
_v  / 
_p  / 
726
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Meaning
Analog/scaled

Angular velocity
Position
Digital (BOOL)

Other (WORD)
Other (DINT)

Meaning
Analog/scaled

Angular velocity
Position
L
Resolution Value range
16 bits ± 199.99 %
16 bits ± 30000.0 rpm
31
32 bits -2 ... 2
8 bits 0 ≡ FALSE; 1 ≡ TRUE
16 bits 0 ... 65535
32 bits -2147483647 ... 2147483647
Scaling
external value ≡ internal value
100 % ≡ 2
15000 rpm ≡ 2
1 encoder revolution ≡ 2
Firmware ≤ 11.00 - DMS 8.0 EN - 10/2011
31
-1 increments
14
≡ 16384
14
≡ 16384
16
increments