開機之後,將另外兩個數據寄存器的數據合並至掉電保持寄存器的高8位和低8位:
R9014是松下FP0係列PLC內部所規定的、在PLC從program狀態到run狀態時、第二個PLC掃描周期開始動作的脈衝繼電器。指令F121是一個不帶進位左移指令,K8即左移8位。指令F66是一個字或指令,將一般數據寄存器DT20內的數據與一般數據寄存器DT0內的數據進行字或,結果送掉電保持寄存器DT1655。由上可以看出,在PLC運行的時候,可以任意改變一般數據寄存器DT0和DT1中的數據,而這些改變也同時送到了掉電保持寄存器DT1655,這樣,當PLC掉電時,所被調整的數據也就被保存了。
通過同樣的方法,我們可以視被調整數據的大小,靈活的使用掉電保持寄存器的每一個Bit位,從而使我們在不增加成本的情況下,提高小型PLC控制係統的性能。
Sequoia-Turner 9611430 9621430 9601430 Solenoid Control
API CENTIGRADE 0-300F 603-XU HIGH SHIELDED METER
LOT OF4 MOTOROLA MPC8347VVALFB 667/333 MHz CHIP
HP Indigo CA372-00150 CA396-00660 Microsoft Windows Ser
HP Indigo ElectroInk MSF-0135-41 Black for press 3000 4
ALVARION ALA-12002 3400-3700 MHz/12dBi High Gain Panel
CRYSTAL UNIT 100 PCS FOX0368-20 EUA3.686U0F20E33 3.6864
LOT OF 10 OWL U2.5-4 Universal Adapter cap
LOT OF 2 Pelco PCDVR-8CH-R02 8 Channel CCTV NTSC PAL CP
Applied Materials 0040-82245 REV 2
LAMBDA Alpha 1000W POWER SUPPLY 94.4-240vac or 133-328v
SMC PRESSURE SWITCH ISE4-T1-25 1MPa W/AR30-N02H
lot of 3 SMC AR3000-03BG Pneumatic Regulator
ECI MO_CMD4SL 015-A02-AC OPT 015 HI-OPTEL HCDM-M-4-MD-4...
NetApp RS-PSU-450-AC1 Power Supply 450W 31590-08F 108-0
NetApp RS-PSU-450-AC1N Power Supply 450W 64362-04D
LOT OF 3 Applied Materials 0200-01904 PIN PEDESTAL ALIG
Epox EP-8KDA3I Motherboard Socket 754 nForce3 250 DDR A
Ohmeda Biox 3740 Pluse Oximeter SAO2 PATIENT MONITOR
Ceragon UNIVERSAL 5.85~7.9GHz 6dB CPR06882
ElectroCraft SERVO PRODUCTS E240 Motor 240-027-0888
lot of 6 Orbotech / Leon Pessach & Sons 0361374 Belt Tl
LOT OF 4 MOELLER DILEM4-G CONTACTOR 4POLE 20AMP 600VAC
TIYODA TOKYO S6V2A FOR Microscope
VERINT LPM251 52-302-0106 52-312-0100 Card
Digidesign MCLC a division of 915003549-1 rev G /
SMC ITV0050-3CN REGULATOR ELECTRO PNEUMATIC