Item Description
B tm:
Total batch time for last completed batch.
F tm
Fine Feed time for last completed batch.
Prea:
Preact used in this batch.
Prev:
Preact used previous batch.
Home Screen
Button to reach the Main Screen.
Action Menu
Button to reach the Action Menu. See Action Menu, page 17.
Local Setpoint
Button to reach the Setpoint Menu. See Setting the Setpoint,
page15.
Clear Statistics
Button to clear all statistic related values.
There is an alternative batch statistics screen, more suitable when the batch setpoint
changes often. By setting R[623] to 1,
Accu:
is replaced with
SDev:
, Standard deviation.
Ave:
is replaced by
Merr:
, mean error. Both are expressed in percent of the Batch
Setpoint, using recursive formulas. For every batch, the Batch Error, in %, is calculated:
100
S
S
T
E
n
n
n
n
•
−
=
Where E is the error, T is the Batch Total and S is the Batch Setpoint. The Mean Error, X,
(
Merr:
) is recursively updated:
1
n
E
X
n
X
n
n
1
n
+
+
•
=
+
Merr:
should converge to Zero if the Batch Parameters are set correctly.
Finally, the Standard Deviation, D, (
SDev:
) is recursively updated:
(
)
2
n
1
n
2
n
1
n
X
E
1
n
1
n
1
n
D
D
+
•
+
+
⎟
⎠
⎞
⎜
⎝
⎛ −
=
+
+
Warnings
A Warning indicates a potential problem and calls for your attention. Any logical input or
output can be configured to qualify a warning. See Digital I/O Mapping on page 34. The
Warnings button is visible in the main screen if there is an active warning condition or
there has been a warning condition that has not yet been acknowledged.
Main Screen with Warning Indicator
Pushing the Warnings button takes you to the Warnings screen. The following screen
shot shows the default warnings. Your I/O configuration may be different, producing a
different Warnings screen.
35.00.EX O&M Manual
14
Summary of Contents for MC3 35.00.EX
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