描述
模拟量输入转换成数字量和把数字量转换成模拟量输出的公式是一样的。下图摘自“西门子S7-200·LOGO!·SITOP参考BetaVersion1.0”。举个例子,用4–20ma电流输出来控制变频器的频率0—50hz,首先200PLC的4–20ma对应的数字量是6400—32000。对应于公式Ov=pqw;
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主营:世界知名品牌的PLC、DCS系统备件模块
①Allen-Bradley(美国AB)系列产品》
②Schneider(施耐德电气)系列产品》
③General electric(通用电气)系列产品》
④Westinghouse(美国西屋)系列产品》
⑤SIEMENS(西门子系列产品)》
⑥销售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系统、WDPF系统、MAX1000系统备件。
⑧Invensys Foxboro(福克斯波罗):I/A Series系统,FBM(现场输入/输出模块)
顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数
据通信及处理等。Invensys Triconex:冗余容错控制系统、基于三重模件冗余(TMR)
结构的zui现代化的容错控制器。
⑨Siemens(西门子):Siemens MOORE,Siemens Simatic C1,Siemens数控系统等。
⑩Bosch Rexroth(博世力士乐):Indramat,I/O模块,PLC控制器,驱动模块等。
◆Motorola(摩托罗拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
Allen Bradley Contactor 100-A09ND3 120/110 VAC (3569)
Allen Bradley 100-M09NZ*3 /A 100-M09 Contactor
Allen Bradley 100-C09D10 Contactor C09 Series A
Allen Bradley 100-FPTB30 Pneumatic Timer ~NIB~
Allen-Bradley CAT100-A09NZ*3 Contactor DIN 24VDC
100-A24ND3 Allen Bradley 110/120v 24a Contactor
Allen Bradley 100-FA22 Auxiliary Contact NEW
ALLEN BRADLEY 100-MO5NZ 3 100-MO5NZ*3 CONTACTOR
ALLEN BRADLEY 100-A09NZ3 100-AO9NZ*3 USED CONTACTOR
Allen Bradley Contactor 100-NX66HB473 120V (3496)
Allen Bradley Contactor 100-C09Z*10
Allen Bradley 100-C09D10 Contactor Series A
Allen Bradley 100-FSD250 SER A SURGE SUPPRESSOR DIODE
Allen Bradley 100-FA11 Auxiliary Contact Series B
Allen Bradley 100-SA01 Auxiliary Contacts
ALLEN BRADLEY 100-FA04 Contact Block Series A NEW
Allen-Bradley Starter 100-A45N*3 C & Relay 193-CPC 45
ALLEN BRADLEY 100-FA31 AUX BLOCK 100FA31 LNC
Allen Bradley 100-C16B10 Contactor
ALLEN BRADLEY 100-C16D*10 CONTACTOR
LOT OF 3 ALLEN BRADLEY 100-A09NZ* SERIES B CONTACTERS
Allen Bradley Contactor 100-A09ND3
ALLEN BRADLEY 100-SA01 AUX CONTACT SIDE MOUNT NEW
1785-M100 Allen Bradley PLC 5 memory 1785M100 N376
ALLEN BRADLEY 100-A38N*3 100A38N*3 USED
ALLEN BRADLEY 100L-A20ND4 100LA20ND4 NEW NIB
Allen Bradley 700-CF310Ser. A 100S-F Ser B Contactor
ALLEN BRADLEY 100-C09*10 690 V 25 A CONTACTOR
8264 NEW Allen-Bradley 100-C43J02 Reversing Contactor
Allen Bradley 100-A24NZ*3 100-A24NZ 3 Contactor
NEW IN BOX ALLEN BRADLEY # 100-A09ND3 AC CONTACTOR
ALLEN BRADLEY 100-A60N
Allen Bradley 100-FSV136 SER A SURGE SUPPRESSOR 56/136V
8495 NEW Allen-Bradley 100-SA20 Auxiliary Contact 10A
Allen Bradley 100-SA20 NIB
ALLEN BRADLEY 100-FA04 Contact Block Series B
Allen Bradley 100-C16ZJ10 & 193-EA4FB overload Starter
Allen Bradley 100-C09*10 100C0910 Contactor
Allen Bradley 100-FA40 Auxiliay Conctact 100FA40 NEW
ALLEN-BRADLEY MINI CONTACTORS 100-M09N*31 SER.A
Allen-Bradley 100-SA20 Auxiliary Contact 10A
ALLEN BRADLEY 100-C12Z*10 100C12Z*10 USED
Allen Bradley Contactor 100-C23Z*10 Series C
ALLEN BRADLEY 100-A09ND3 STARTER REVERSING W/ 193-BSB22
Allen Bradley Contactor 100-A12ND3 120V w O/relay (3498
Allen-Bradley 100-C09Z*10 Contactor DIN-Rail