IC693PWR331CA 电源

IC693PWR331CA 电源

IC693PWR331CA

模拟量多是非电量，而PLC只能处理数字量、电量。所有要实现它们之间的转换要有传感器，把模拟量转换成数电量。如果这一电量不是标准的，还要经过变送器，把非标准的电量变成标准的电信号，如4—20mA、1—5V、0—10V等等。

同时还要有模拟量输入单元(A/D)，把这些标准的电信号变换成数字信号;模拟量输出单元(D/A)，以把PLC处理后的数字量变换成模拟量——标准的电信号。

所以标准电信号、数字量之间的转换就要用到各种运算。这就需要搞清楚模拟量单元的分辨率以及标准的电信号。

IC693PWR331CA

KONTRON PEP CP6000 CPCI/PICMG PENTIUM M EMBEDDED BLADE

DELL SEAGATE STU42001LW 100/200GB TAPE W/ 4 CARTRIDGES

LIGHTSAND SAN COMMUNICATIONS BOARD 200-00001-00

SUN 540-5694 73GB 10K RPM FC HARD DRIVE DK32EJ-72FC NEW

KONTRON PEP CP330 UNIVERSAL XGA GRAPHICS CONTROLLER

20-00FBA-09 1GB 133MHZ 200 PIN ALPHASERVER MEMORY DIMM

TREND COMMUNICATIONS AURORA 2 TEST SET

WENGLOR 2x REFLECTIVE SENSOR & THROUGH BEAM W/ CABLES

HAND HELD PRODUCTS LASER WAND 256K SCANNER + BASE MINT

DEC VT525 A6 DIGITAL COLOR TERMINAL BASE TESTED VT 525

DATAKINETICS SPCI4/02 SS7 4 PORTS SEPTEL PCI CARD SPCI4

MOTOROLA MVME 334B VME BOARD 01-W3875B MVME334B

DATAKINETICS SPCI4/0E SS7 4 PORTS SEPTEL PCI CARD SPCI4

IMAJE ENR16423 C CPU BOARD CPU MJT S4

7 RiteKom TS3-0155-34S-P1 SINGLE MODE TRANSCEIVERS 155M

TECHNE CYCLOGENE PHC-3 THERMAL CYCLER

YASKAWA CIMR-J7AA20P1 VS mini J7 AC DRIVE 0.1kW

APPLIED MATERIALS MUX COMMUNICATION BOARD 1280127 PCI 

MRV EM2003-2FO AS44694S-M OPTICAL SWITCH MODULE

GILAT KU-BAND ODU TRANSMITTER AN-0692-10 NJT3003TX

CONTROL TECHNIQUES COMMANDER SE SE11200037 AC DRIVE

GRANVILLE-PHILLIPS 316 VACUUM GAUGE CONTROLLER VGC

ROKAR MILITARY GPS RECEIVER SYSTEM

UNAOHM EP 803 SATELLITE FIELD STRENGTH METER EP803B NEW

MOTOROLA MVME162-522A VME BOARD 01-W3960B MVME 162-522A

LOT OF 53 MICRON 1G SDRAM 100MHZ CL2 ECC MT36LSDF12872G

64MB DRAM Memory for Cisco 1841 Router MEM1841-6 NEW

GE UNICOM 92-0001-01C W/ 92-0003-01B 92-0200-01

MOTOROLA FORCE PPC/CPCI-690/1024-700-32 cpci 690/1024

MOTOROLA MVME162-432 01-W3960B MVME 162-432

RAMIX CP944 Layer 2 Ethernet switch P/N 14-2610E00

MOTOROLA / FORCE POWER CORE CPCI 690 256-700-32/PSB

CHAUVIN ARNOUX PROWATT-3 SET W/ 3x CLAMPS & PRINTER

AirSpan WipLL SDA-4S/VLtag PN:09200024 SDA 4

XC-BAND LNA LN-4451-10 SATELLITE COMPONENT P/N LN445110

PowerDsine PD-8012/AC

MOTOROLA MCPN750A cPCI VME BOARD MCP750 01-W3611F

NATIONAL INSTRUMENTS BUS EXPANDER / ISOLATOR GPIB-120A

Johnson Controls Metasys XP-9107 Extension Module

ODIN MEDICAL TECHNOLOGIES AMPS CAT.NO 506A0059-01

SEAGATE HDD 181G SCSI ST1181677LWV 68 PIN