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1 - 54 Modular LYNX System 12.05.2003
Input Filtering
User definable Digital filtering makes the LYNX well suited for noisy industrial environments. The filter
setting is software selectable using the IOF Variable with a minimum guaranteed detectable pulse width of
18 microseconds to 2.3 milliseconds.
The table below illustrates the IOF settings.
Table 10.4: Digital Filter Settings for the Differential I/O
Figure 10.3: LYNX Differential I/O Input Equivalent Circuit
Input (+)
Channel A (+)
Differential
Encoder
Channel B (+)
Index (+)
Channel A (-)
Channel B (-)
Index (-)
Input (-)
+5VDC
Digital
Filter
Polarity
Edge
Level
Edge
Detect
Logic
Group
Filter
Setting
High Speed Differential I/O Module
10kΩ
4kΩ
3.3kΩ
20kΩ
+
-
4.3V
1.4V
O/IlaitnereffiDdeepShgiHehtrofsgnitteSretliFFOI
)7-0=>mun<(>mun<=FOI
gnitteSretliF
ffotuC
ycneuqerF
esluPelbatceteDmuminiM
htdiW
)tluafed(0zHM00.5sdnocesonan001
1 zHM05.2 sdnocesonan002
2zHM52.1sdnocesonan004
3 zHk526 sdnocesonan008
4zHk313sdnocesorcim6.1
5 zHk651 sdnocesorcim2.3
6zHk1.87sdnocesorcim4.6
7 zHk1.93 sdnocesorcim8.21