Lenze 8400 - LConvunitstoincr3

Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23 1310
17 Function library
17.1 Function blocks | L_ConvUnitsToIncr_3
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17.1.50 L_ConvUnitsToIncr_3
Taking into account the machine parameters, this FB converts a position value provided in the real
unit of the machine into an internal 32-bit position value.
• The conversion mode has to be set in C01294/3
. In the Lenze setting, no conversion takes place
due to compatibility reasons.
• Conversion and provision of the result to dnOut_p do not
take place in real time! Hence, the
bDataValid output signalises when the conversion has been completed and the dnOut_p output
value is consistent for transfer to following processes.
Inputs
Outputs
Parameters
Designator
Data type
Information/possible settings
wInLWord / wInHWord
WORD
Input signal Low Word / High Word
Designator
Data type
Value/meaning
bDataValid
BOOL
FALSE Conversion is active, dnOut_p is not valid.
TRUE Conversion is completed, dnOut_p is valid (consistent).
dnOut_p
DINT
Result of conversion in [increments]
Parameters Possible settings Info
C01294/3
Mode: Position calculation
0 dnOut_p=HW+LW No conversion (Lenze setting)
Note!
If a cycle length is set in C01201/1
, a
calculation is made under the
following conditions:
• Position specification is higher
than or equal to the cycle length.
• Position specification is negative.
For a correct positioning process,
wait until bDataValid = TRUE.
1 16 bits: LW=+/-32767 wInLWord = ±32767 [Unit]
2 16 bits: HW=+/-; LW=0..65535 wInLWord = 0 ... 65535 [Unit]
wInHWord = sign
(0 = positive; ≠0=negative)
3 32 bits: HW_LW=+/-214748_3647 wInHWord and wInLWord =
±214748.3647 [Unit]
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