内部设置了连锁、环境检测与诊断、Watchdog(“看门狗”)等电路，一旦发现故障或程序循环执行时间过了警戒时钟WDT规定时间(预示程序进入了死循环)，立即报警，以保证CPU可靠工作。利用系统软件定期进行系统状态、用户程序、工作环境和故障检测，并采取信息保护和恢复措施。
National Instruments PCI-6602, 8 32-Bit Up/Dn Counters
NATIONAL INSTRUMENTS NI SCXI-1102 32ch THERMOCOUPLE
National Instruments Type SH6868-8DB9 185196A-01 1Meter
National Instruments NI PCI-DIO-96 Digital I/O DIO 96
NATIONAL INSTRUMENTS SCXI-1000 MAINFRAME W/ SCXI-1322
National Instruments CPCI-GPIB Card w/763061Cable X2 4m
National Instruments PCI-6032E 16-Bit Multifunction DAQ
National Instruments. SCXI-1121
National Instruments nuDrive 4-Axis Servo Amplifier
National Instruments PXI-8422 RS-232 Serial Interface
National Instruments PCI-GPIB+ Plus Analyzer *LATEST*
National Instruments SC-2050 Cable Adapter E-Series
NATIONAL INSTRUMENTS PCI-6071E DATA ACQUISITION TESTED
National Instruments PCI-7324/14 card 186357A-04
National Instruments SCB-68 Connector Block + SH68-68
National Instruments GPIB-SCSI-A Controller/Interface
