7 signal types & scaling, Signal types & scaling, 2introduction – Lenze E94A User Manual
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Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
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2
Introduction
2.7
Signal types & scaling
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2.7
Signal types & scaling
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. a speed or position) in the function block interconnection.
Scaling of physical units
Signal type (data type)
Port symbol
in the FB edi-
tor
Resolution
Value range (external)
Decimal positions/
Signal type indication in the
identifier
Scaled (INT)
16 bits
± 199.99 %
2
_a
Scaled (DINT)
32 bits
± 200.00 %
2
_n
Speed (INT)
/
16 bits
± 30000.0 rpm
1
_v
Speed (DINT)
32 bits
± 480000.0 rpm
1
_s
Position/angle (DINT)
/
32 bits
-2
31
... 2
31
-1 increments*
3
_p
Digital (BOOL)
1 bit
0 ≡ FALSE; 1 ≡ TRUE
0
Acceleration (DINT)
32 bits
± 7.69 * 10
9
rpm/s
3
_x
Time
28 bits1 0 ... 268435.456 s
3
Other (BYTE)
8 bits1
0 ... 255
0
Other (WORD)
16 bits
0 ... 65535
0
Other (DWORD)
32 bits
0 ... 4294967295
0
Other (INT)
16 bits
-32767 ... 32767
0
Other (DINT)
32 bits
-2147483647 ... 2147483647
0
* As of controller software version V3.0 the resolution of an encoder revolution can be parameterised in C00100
(Lenze setting: 16 bits/encoder revolution).
Signal type
Port symbol
in the FB edi-
tor
Resolution
Scaling
external value ≡ internal value
Scaled (INT)
16 bits
100 % ≡ 2
14
≡ 16384
Scaled (DINT)
32 bits
100 % ≡ 2
30
≡ 1073741824
Speed (INT)
/
16 bits
15000 rpm ≡ 2
14
≡ 16384
Speed (DINT)
32 bits
15000 rpm ≡ 2
26
≡ 67108864
Position/angle (DINT)
/
32 bits
1 encoder revolution ≡ 2
16
increments*
Acceleration (DINT)
32 bits
15000000 rpm/s ≡ 2
22
≡ 4194304
* As of controller software version V3.0 the resolution of an encoder revolution can be parameterised in C00100
(Lenze setting: 16 bits/encoder revolution).