Lenze E84DSxxx - Manual (Page 764)

17 Function library
17.1 Function blocks | L_OffsetGainP_3
764
Lenze · 8400 protec StateLine · Reference manual · DMS 4.2 EN · 03/2013 · TD05
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17.1.31 L_OffsetGainP_3
This FB can add an offset to an analog input signal and amplify it afterwards. Preferably to be
interconnected directly after the analog input terminals.
• The internal calculations (addition and subtraction) are carried out with 32 bits without
overflow/underflow. Division is not remainder considered.
• Offset and gain are selected via parameters.
• The value provided at the nOut_a output is internally limited to ±199.99 %.
Inputs
Outputs
Parameter
Function
Identifier
Data type
Information/possible settings
nIn_a
INT
Input signal
Identifier
Data type
Value/meaning
nOut_a
INT
Output signal
• Internal limitation to ±199.99 %
Parameter Possible settings Info
C00672 -100.0000 100.0000 Gain factor
• High gain factor for further
processing of smallest input
signals.
• Please observe the difference
with regard to the gain factors of
other blocks in percent
(±199.99 % ≈ 2).
• Lenze setting: 1.0000
C00698 -199.99 % 199.99 Offset
• Lenze setting: 0.00 %
/B2IIVHW*DLQ3B
Q2XWBD
“
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Q,QBD
2IIVHW *DLQ
& &
nOut_a nIn_a Offset + ( ) Gain factor ⋅ =