Bently Nevada 3500/42M
PLC内部存储器有两类:一类是RAM（即随机存取存储器），可以随时由 CPU对它进行读出、写入；另一类是ROM （即只读存储器），CPU只
从中读取而不能写入。RAM主要用来存放各种暂存的数据、中间结果能及用户正在调试的程序，ROM主要存放监控程序及用户已调试好的程序，这些程序都事先烧在ROM芯片中，开机后便可运行其中程序。
3、输入、输出接口电路
它起着PLC和外围设备之间传递信息的作用。用户设备需要输入PLC的各种控制信号，如限位开关、操作按钮以及其它一些传感器输出的开关量或模拟量（要通过模数变换进入机内）等，通过输入接口电路将这些信号转换成CPU能接收和处理的信号。输出接口电路将处理器输出的弱电信号转换成现场需要的强电信号以驱动电磁阀、接触器等被控设备的执行元件。
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厦门莫格电气自动化有限公司
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DELPHI OXYGEN SENSOR ES10420 NIB
BALLUFF BNS816-B03-WS-1?2-602-11
USG VACUUM GAUGE 0-30 HG
BANNER MULTI-BEAM SCANNER BLOCK 17625 NIB
BTG PULPTEC 100-240VAC 60VA F2 CONSISTENCY TRANSMITTER JCT-1100
DELPHI OXYGEN SENSOR ES10408 NIB
TELEMECANIQUE PROXIMITY SWITCH SENSOR XSAV12801
STI SAFETY SWITCH ER 4020
BANNER PHOTOELECTRIC SENSOR 48675 NIB
GEMS 212822 PRESSURE SWITCH, NIB
ORIGIN TECHNOLOGIES LASER GAUGE SENSOR HS305-F16
DAYTRONIC SPRING EXTENDED TRANSDUCER DS1000A
CUTLER-HAMMER 90-132VAC 3-PIN PHOTOELECTRIC PROXIMITY SENSOR E58-18DP50-ELPB
HONEYWELL, MICRO SWITCH PHOTOELECTRIC SENSPR FE-PCIL
EFECTOR 500 PB5322 PRESSURE SENSOR NIB
STI MINISAFE-B 30FT RANGE .5" BEAM TRANSMITTER, MS4312B-2
TELEMECANIQUE XCS PROXIMITY SENSOR XCS-A803
NAMCO 3000PSI CYLINDICATOR EE210-31380
BANNER PIAT26U PLASTIC FIBER OPTIC SENSOR, NIB
IFM PROXIMITY SWITCH IG0331IG-2008-B?B0A
TURCK 10-30VDC RING SENSOR Bi30R-W30-DAP60?-H1141
IFM ELECTRONIC PROXIMITY SENSOR 0GT500
RITTAL * INTERNAL ENCLOSURE THERMOSTAT * SK 3110
BANNER BEAM TRACKER RCV XMT
SICK LIGHT CURTAIN DAMAGED C40E-0603DB200
WEBER 10-30VDC, 200mA, PROXIMITY SENSOR WN116465
PEPPERL+FUCHS PHOTOELECTRIC PROXIMITY SENSOR MPS18HD W/ FIBER-OPTIC HEAD MPG6HD
PARKER CONVUM PRESSURE SENSOR MPS
SICK LCU-AGSE RECEIVER INTERFACE UNIT 7 025 669 *NIB*
NAMCO 20-230VAC/DC 0.5A 1500 PSI CYLINDICATOR, EE230-20420, NNB
SMC MAGNETIC REED SWITCH SENSOR D-A93 NNB
DATALOGIC BARCODE READER SCANNER MATRIX 400 600-010 *LENSE COVER*
ORION PERPHECT LOGR METER MODEL 310
FOXBORO I/A SERIES MASS FLOWTUBE CFS10-15SCFBB
NAMCO 2WAC/DC, 20-230VAC/DC, LEAKAGE: 1.7mA FLAT SWITCH EE530-84400
MICROSCAN MS-3000 BARCODE READER DECODER FIS-3000-0003 NIB
NAMCO CYLINDICATOR EE520-42521
BANNER PBA PHOTOELECTRIC POWER BLOCK SENSOR 120V-AC
WILCOXON RESEARCH ACCELEROMETER SENSOR 786A
BIO BIC CONSISTENCY SENSOR CS3C
ALLEN BRADLEY GLASS FIBER OPTIC CABLE 99-52-1096 SER C NIB
TEMPOSONIC 37" LINEAR POSITION SENSOR SER R RHM0700MD631P10?2
ENDREE + HAUSER PROMAG 53 / H FLOW MEASURING SYSTEM 53H02-LA0B1RA0B?BAA
IFM EFFECTOR 10-55VDC INDUCTIVE PROXIMITY SENSOR IW5008 IW-3008-ANOG
FOXBORO I/A SERIES TEMPATURE TRANSMITTER BO300BT
BANNER MAXI-BEAM SENSOR PHOTELECTRIC RECIEVER HEAD RSBR
SICK * 30-MGS SAFETY LIGHT CURTAIN * MGSS45-12