4-12 Input/ Output MN1903

4.4.3 Digitalinputs - X3
Digitalinputs DIN0toD IN3 can be used as high speed position latches. The fast pos ition
inputsare r outed through a programmable cross-point switch whic h allows any input to cause
theposition of any combinationofax es to be captured (by the hardware) within 1µs. Special
MintMTkey words (beginning with the letters FAST...) allow specific functions to be performed
asa res ult of fast position inputs becoming active.
Location Breakout module, connector X3
Pin Name MintMTkeyword / descrip tion
1DIN0 INX.0
2Common1 Commonc onnection
3Shield Shieldc onnection
4DIN1 INX.1
5Common1 Commonc onnection
6Shield Shieldc onnection
7DIN2 INX.2
8Common1 Commonc onnection
9Shield Shieldc onnection
10 DIN3 INX.3
11 Common1 Commonc onnection
12 Shield Shieldc onnection
Description
Fourfas t position digital inputs.
Samplingfrequenc y: 1kHz (MintMT)
Note: Digitalinputs D IN0 to DIN3 are particularly sensitive to noise, soinputsmus t use
shieldedtw isted pair cable.
Activehigh:
DINx=12-24VDC (±20%)
Common1=0V
Common1
DINx
MintMT
Vcc
NextMovePCI
Activelow:
DINx=0V
Common1= 12-24VDC (±20%)
3k3
TLP115
Figure4 - Digital input circuit - fast interrupts
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