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Table of Contents
4.2
Isolated Digital Input .............................................................. 26
4.3
Interrupt Architecture............................................................. 27
4.4
Change of State(COS) Interrupt ............................................. 27
Chapter 5 C/C++ DOS Libraries ........................................... 28
5.1
Programming Guide .............................................................. 28
5.1.1
Naming Convention ....................................................................... 28
5.1.2
Data Types....................................................................................... 29
5.2
_7256 Initial .......................................................................... 30
5.3
_7256_DO............................................................................ 31
5.4
_7256_DO_Read_Back......................................................... 31
5.5
_7256_DI ............................................................................. 32
5.6
_7256_COS_Channel ........................................................... 33
5.7
_7256_COS_Latch................................................................ 33
5.8
_7256_INT_Control ............................................................... 34
5.9
_7256_CLR_IRQ .................................................................. 35
5.10
_7256_GET_IRQ_Status ....................................................... 35
Appendix A.
Relay Contact Protection Circuits ....... 36
Warranty Policy ........................................................................ 39
