Addi-Data APCI-3000 Technical Description page 5

Contents
7.3.1 Analog inputs ...................................................................... 31
7.3.2 Analog outputs (only APCI-3100, APCI-3106 and APCI-3500)31
8 FUNCTIONS OF THE BOARD ................................ 32
8.1 Block diagram................................................................32
8.2 Analog input ...................................................................32
8.2.1 Overview - time-multiplex system........................................ 32
8.2.2 Voltage ranges.................................................................... 33
8.2.3 Analog input switch (differential inputs)................................ 33
8.2.4 Input modes of the analog inputs ....................................... 35
1) Simple mode .................................................................................. 35
2) Scan modes .................................................................................... 35
8.3 Analog outputs ...............................................................38
8.4 TTL inputs and outputs ....................................................39
8.5 Timer...............................................................................40
8.6 Counter ..........................................................................40
8.7 Setting a TTL output ........................................................42
9 STANDARDSOFTWARE ......................................... 43
9.1 Software functions..........................................................43
9.2 Software samples ...........................................................50
10 APPENDIX .......................................................... 54
10.1 Glossary .........................................................................54
10.2 Index ..............................................................................58
APCI-3xxx
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