Stratos Multi E401N
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13.4.4 Calculation Blocks (FW-E020)
After activating TAN option FW-E020, two calculation blocks that can convert existing process vari-
ables to new variables are available.
In addition, the general device status (NAMUR signals) is taken into account.
The following variables are calculated from the existing values:
• Measured value difference (selection depending on sensor)
• Ratio
• Passage
• Rejection
• Deviation
• pH value calculation from dual conductivity measurement (see below)
• User-Spec (DAC): User specification
All new variables generated by the calculation blocks can be output at the current outputs and on the
measurement display. Control using an internal controller is not possible.
Activating and Configuring Calculation Blocks
Parameter Setting
System Control
Calculation Blocks
Preconditions
• At least two sensors are connected and TAN option FW-E020 is activated.
Steps
01.
Open
Calculation Blocks
.
02.
Select a process variable combination.
Calculation Blocks (Administrator)
Sensor A
Back
Calculation
Sensor B
Calculation
Sensor A
Sensor B
Cond, Cond
Analog Cond
I
Memosens Cond
Analog Cond
Analog Cond
Cond, Cond
CI
CII
IIA
IIB
IIB
Memosens Cond
Analog Cond
Analog Cond
I
IIA
IIB
03.
2x
left softkey: Back
04.
Scroll down using the
arrow key
and select a calculation block.
During parameter setting, the calculation blocks are displayed like modules, plus [CI] or [CII]:
Parameter Setting (Admin.)
Sensor Selection
Back
Cond, Cond Calculation
Analog Cond-Cond
Memosens Cond
Back to Meas.
Cond, Cond Calculation
HART
I
I
II
II
CI
CII
05.
Configure the calculation block.