这个研究所开发出来的平台和软件可以供这几家公司共同使用,负责控系统开发的苋总工也是一位相当有远见的专家,与其多次交流均很受益。特别需要注意的是苋先生、德国infoteam的布兰德博士和KW的老总都是白发苍苍的长者,让人感到敬佩的是这几位长者对于技术的执着和深入,而国内我见到很多小伙子二十几岁就开始担心到三十岁还能不能干技术,是不是要换行做管理或者市场。其实工控就像酒一样,时间越长越有味,在中国老一辈还在前线的工程技术人员少的原因主要是因为文革和改革开放初期的全民皆商给破坏掉了,如果不出意外,我想本人到60岁都还会对技术充满兴趣。
单一厂商单一种产品或装备,如果年产量超过1000台,都会有人开发专用控制器,这不是悲观,而是因为成本和竞争造成的,比方说注塑机,在以前大多使用PLC,而现在大部分都使用专用的控制器。再比方说回流焊,这以前是西门子S7-200的传统市场,一套PLC加一个PC,现在相当多的厂商在用亚当温控模块或者IPC加板卡的方式做各种尝试,同时已经有不少厂商用单片机开发了专用的控制器。再比方说电梯,这是三菱传统的市场,现在被专用控制器挤掉了一大半的市场,这只是说这几个行业成熟了标准了。
但是目前的专用控制器实现方式也有其局限性,如果这个行业的产品都是标准化的,用户没有多少非标需要,那么问题不大,可是如果有需要客制化做改动的,那么选择专用控制器就不是太适合了。
这就是德维森推崇的利用通用可编程平台开发专用控制器,也就是用PLC的平台开发专用控制器,这样成本和单片机差不多,却可享受PLC可编程优势,对用户的需要可以进行各种修改,同时还可享受PLC标准的各种接口,比方说网络、通信、数控等,而不需要再去重新开发这些功能。更重要的它的结构是按装备生产厂商需要设计的,可以带液晶或者数码管的显示,用户不需要硬件和多余的点数都被去掉。成本方面比通用的PLC更有竞争力。
TEKTRONIX TLA720 Logic Analyzer,Mainframe, 10 S/W Slots
NIST calibration/30-day warranty/14-day right of return
TEKTRONIX TDS220 DIGITAL OSCILLOSCOPE 2 CHANNEL TDS2CM
Tektronix 2246A Analog oscilloscope
Tektronix 11402-2D Digital Oscilloscope Mainframe. 2D-M
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30-day warranty/14-day right of return
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Tested, 30-day warranty/14-day right of return
TEKTRONIX 7854 Oscilloscope
@@ TEKTRONIX 1503B METALLIC TDR CABLE TESTER! @@
@@@ CALIBRATED @@@ CALIBRATED @@@ CALIBRATED
Tektronix AM503B AC/DC Current Probe Amplifier
2x TEKTRONIX 1741A WAVEFORM VECTORSCOPES
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For Use With Tektronix CSA8000 and TDS8000, Nice Module
One-day shipping available
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Expedited shipping available
Tektronix P6702 500MHz, 1300nm O/E Converter
Expedited shipping available
Tektronix, TDS 420 Four Channel Digitizing Oscilloscope
Tek 178 tektronix ic test fixture 577 Curve Tracer Plug
Qty2-Tektronix P6020 Current Probe + Termination TESTED
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TEKTRONIX 1740A / 760A Combo TEK
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Expedited shipping available
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4 Slot Module with (x1) 7A19 + (x1) 7A26 + (x2) 7B80
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Expedited shipping available
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Includes (2) Tek P6139A 10X Probes
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Tektronix 1765 & WFM 601 Vector Waveform Monitors
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Tektronix Sony AFG310 arbitrary function generator
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