Siemens SIMATIC BATCH, Руководство по эксплуатации

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The minimum limit is calculated so that the parameter value cannot fall below the low limits of
the block following scaling.
Value
Here, you can enter the set point. A default value is displayed that is taken from the data of
the basic control. The value entered must be between the high and low limits.
There are several possible reasons for a violation of the limits:
● The limits in the process cell data are too narrow.
● The selected scaling is too extreme.
● The limits for the batch quantity in the recipe header are too far away from the reference
quantity.
High limit
This displays the maximum value of the parameter that would be of practical value as the
setpoint. If a discrete parameter type or text parameter is set for this parameter (in other words
not "floating point" or "integer" type!), there is no high limit since only permitted entries are
displayed as the value. If scaling is selected, the value depends on the reference scale and
the high limit of the actual amount from the recipe header.
The high limit is calculated in such a way that the parameter value cannot exceed the high
limits of the block following scaling.
If the high limit is below the low limit so that no possibility exists to enter a correct value, this
is caused by the high and low limits in the header parameters being too far apart or the use of
a scaling that would push the value beyond the limits.
Electronic signatures
Operator actions relating to recipe steps can be signed. You configure electronic signatures
in the "ESIG" tab.
Additional information can be found in the following section: Specifying electronic signatures
(Page 375)
See also
Parameter interconnections (Page 561)
Passing formula parameters in the recipe (Page 560)
10.4.6.5 Specifying recipe limits
Definition of terms
Recipe limits relate to the product to be processed. They form additional limits to those for
equipment modules from basic engineering. Recipe limits are configured in master recipes in
the BATCH Recipe Editor for a recipe phase in the "Properties" dialog. If you have selected
"Yes" for the "Allow online setpoint change" project setting in the "Batches" folder, recipe limits
can be modified during batch operation. The new recipe limits are displayed in the BATCH
Recipe Editor, in BatchCC, and in the BATCH OS controls.
BATCH Recipe Editor
10.4 Creating recipes
SIMATIC BATCH V8.2
Operating Manual, 02/2016, A5E35958174-AA
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