Flow-X─ Function Reference
4-245
Flow-X General functions - fxKeypadFallbackArray
fxKeypadFallbackArray
This function provides a generic interface to an array of input values, typically a gas composition. It
provides the option to override the 'live' values with keypad values and to fallback to specific values
when the set of input values is faulty.
When the input signals fail, the in-use values may fall back to the last good values, the keypad values or
additionally separate fallback values. The fallback values allow the user to define a fixed values (e.g. 0)
that is independent from the current keypad values.
Function
inputs
Remark
EU
SW tag
Range
Default
Name
Optional tag name, tag description
and tag group
Input status
Status of the input signals
0:
Normal
<> 0:
Failure
INPSTS
Input values
Array if input values
INPVAL
Fallback type
Determines what to do when input
fails
1: Use last good value
2: Use fallback value
3: Use keypad value
4: Use measured
FBTYP
Fallback value
Array of fallback values.
Used when output 'Input status'
becomes 'Faulty' and 'Fallback type'
is set to 'Use fallback value'
Same
as
input
FBVAL
Keypad mode
Forces the usage of the keypad
value
0: Disabled
1: Enabled
KPMOD
-
0
Keypad value
Array of keypad values.
Used when output 'Input status'
becomes 'Faulty' and 'Fallback type'
is set to 'Use fallback value'
Same
as
input
KPVAL
0
Function outputs
Remark
EU
SW
tag
Alarm
Fallback
Status
0: Normal
1: Argument out of range
2: Keypad
3: Fail Last Good
4: Fail Keypad
5: Fail Fallback
6: Fail Measured
Only for status 'Function Input
argument out of range' the output
vales will revert to the
corresponding fallback value.
STS
FIOOR
FAILLG
FAILKP
FAILFB
KEYPAD
FAILMS
In-use value
Array of in-use values
Same
as
input
CUR
0
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