Advanced Function Programming
3-19
SIMATIC 505–2556 Installation and Operation Guide
3.5 Additional Information about Each Function
There
are default values for every function that is supported. If no data is
transferred to the module and the enable bits for a function are set and
written to the module, then the default values will be used. See T
able 3-8.
NOTE:
No matter what functions are enabled, the actual hardware data
from the I/O channel is always present in WX33 – WX48.
T
able 3-8
Default Function V
alues
Functions Enabled Low Default Value High Default Value
Alarm setpoints 1000 31,000
Scaling engineering units 0 32,000
Offset mode 4–20 mA 6400 32,000
Filtering time constants 250 msec
Averaging 20 averages
Peak hold 0 0
Valley hold 0 0
T
able 3-9
Default
Function V
alues for SIMA
TIC 505–2556
Functions Enabled Low Default Value High Default Value
Alarm setpoints 50 200
Scaling engineering units 0 100
Filtering time constants 250 msec
Averaging 20 averages
Peak hold 0 0
Valley hold 0 0
Default
V
alues
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