ADLINK PCI-7256 - Manual (Page 6)

ii • 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