先进先出(FIFO)读功能模块(FIFO_ RD)从表中移出数据。数值总是从表的底部移出。如果指针指向最后位值,表就满了。FIFO_RD必须用来删除指针入口存储单元的记录并且指针减1。IFO_ RD和FIFO_ _WRT结合使用,FIFO_ WRT使指针增1并且把指针存储单元的内容写入表中。1.FIFO_ RD复制表的顶部存储单元的值到输出参数Q中。
POWERTEC POWER SUPPLIES 1000-6A USPP 10006A
GENERAL ELECTRIC 531X300CCHAEM2 NSPP 531X300CCHAEM2
BANNER ENGINEERING MSXLHDE7212Y NSPP MSXLHDE7212Y
BANNER ENGINEERING MSXLHDR7212Y NSPP MSXLHDR7212Y
FANUC A16B-0160-0650 USPP A16B01600650
ALLEN BRADLEY 7300-UCES3 USPP 7300UCES3
ASEA BROWN BOVERI DSQC116 USPP DSQC116
MATTEC 561-1022 USPP 5611022
MATTEC 561-1032A USPP 5611032A
MATTEC 561-1034A USPP 5611034A
SQUARE D CP2308G4STM NSPP CP2308G4STM
GENERAL ELECTRIC DS3800NPSF1D1E USPP DS3800NPSF1D1E
ALLEN BRADLEY 810-A23A NSPP 810A23A
SENSORIK 4031 NSPP 4031
BANNER ENGINEERING BT10480-29-4C USPP BT10480294C
HONEYWELL 30752766-001 NSPP 30752766001
ALLEN BRADLEY 809-A12E NSPP 809A12E
ASPECT 68040U NSPP 68040U