只有通过设置在CPU配置菜单中的MEM PROTECT功能设置为ENABLE时此功能才会起作用，如果此功能设置为ENABLE并且开关拨到ON的位置，那么(1)用户RAM存储器不能改变(2)数字量点不能写入和3)时间日期时钟不能通过手持式编程器改变(然而，时间日期时钟仍然可以通过程序软件改变).

HONEYWELL FF-SPR44TR2 PHOTOELCTRIC SENSOR, REFURBISHED

WESTLOCK BEACON 2217N-BY-H50 VALVE POSITION MONITOR, NI

CHESTERTON 324 3/8IN PUMP PACKING, NIB

BLACK BOX IC108A RS-232 485/422 CONVERTER BOX, NIB

BROWNING T55LX 1 5/8 TORQUE LIMITER,

BROWNING T55LX 1 5/8 TORQUE LIMITER, NIB

DELTA GM24-SR ACTUATOR VALVE WITH MOUNTING BRACKET, NNB

FANUC A20B-2902-0371 DAUGHTER BOARD, NNB

MODICON 140DA84 OUTPUT CARD, NIB

ALLEN BRADLEY 179DOV16PX SERIES D MODULE, SEALED, NIB

ACME TRANSFORMER ALRC-025TBC 480V 3PH AC LINE REACTOR,

DAYKIN MDGTB-05 TRANSFORMER DISCONNECT, NIB

ALLEN BRADLEY DC BUFFER UNIT 24-28.8V/20A 1606-XLBUFFER

FTI HA5251000X00094 ENCODER, NNB

BRADY 13611 BLUE VINYL PowerMark INDOOR / OUTDOOR TAPE,

MYRON ZUCKER KID43004-3 480 VOLTS PHASE 3 DRYMOUNT SERI

SICK LCU-AM 7022760 DIN RAIL POWER SUPPLY, NIB

GE FANUC IC693CHS391M 10-SLOT BASE, NIB, SEALED