5控制系统软件设计
软件设计的主要难点就是实时脉冲波形曲线的控制,即始终要保证实际波形曲线要处在给定波形曲线的上下允许误差范围内,如图4所示。
图4实时波形曲线ABB TB557F2E00F04 INSERTION PH/ORP SENSOR 100PSI
AEP TRANSDUCERS TA4 ANALOG TRANSMITTER TA4/2
NEWPORT INFCR0 PANEL METER VOLTS 115VAC 6 WATTS
SERVICE RECORDERS INC. MODEL M CHART RECORDER 110V 60 CYCLE
NIB WIKA 891.23.510 PRESSURE TRANSMITTER P 4337787
TECHNIFOR UCAR-CN31S DC
NIB ALLEN BRADLEY 1720-N34
NIB RED LION IMR00162 INTELLIGENT
NIB ASHCROFT ASH-RX-D-100-B-M-MB4-42-B-10IW PRESSURE TRANSMITTER 4-20MA
SIEMENS SITRANS P TRANSMITTER FOR LEVEL 7MF4633-1EY22-1AC7-Z + C73451-A407-C50
MERIAM INSTRUMENT D0500MB DIGITAL MANOMETER B0406N018
PARKER STEPPER TRANSLATOR 369763-01F POWER SUPPLY