1746-N2
1746-N2
16、什么是模拟量和数字量？
模拟量是指连续变化的信号（如4~20mA,0~5v）；数字量是只有开关状态的信号。
17、I/O信号是如何分类的？
常用的I/O信号一般分为：AI、AO、DI和DO。
AI－－模拟量输入信号
AO－－模拟量输出信号
DI－－数字量输入信号
DO－－数字量输出信号
18、什么是DCS的开放性？
DCS的开放性是指DCS能通过不同的接口方便地与第三方系统或设备连接，并获取其信息的性能。这种连接主要是通过网络实现的，采用通用的、开放的网络协议和标准的软件接口是DCS开放性的保障。我公司目前采用的DCS系统有很好的开放性。
现货，现货，降降降，火火火，火火火……
现货，现货，降降降，火火火，火火火……
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Delta inverter VFD150F43A 380V 15KW good in condition for industry use
KEB inverter 09.F4.S1D-M220 220V 1.5KW good in condition for industry use
Lenze E82EV222-4C000 8200 vector drive good in condition for industry use
Schneider INVERTER Spare parts FA0032591101 03858220123A11 for industry use
ATS46 motherboard CPU board good in condition for industry use
SEW Eurodrive 8223025.1B good in condition for industry use
sew motherboard 8223041.13 FPI 31C good in condition for industry use
Panasonic Servo drive MDD083A1V good in condition for industry use
Yaskawa servo driver SGDS-A5A01AR good in condition for industry use
Omron host ATTO-LIKN good in condition for industry use
Second hand Yaskawa servo motor SGMG-05A2A good in condition for industry use
Yaskawa servo motor USADEM-13-NT24 good in condition for industry use
Siemens motor 1FT5064-OAF71-1 good in condition for industry use
Sanyo servo driver RS1A03AAWFF-AL good in condition for industry use
Panasonic servo motor MDMA082D1G good in condition for industry use
Yaskawa servo driver SGDS-01A01AR good in condition for industry use
Yaskawa servo motor SGMJV-04ADA21 good in condition for industry use
EUROTHERM inverter EV500-0110G/0150P-T4 11KW/380V for industry use
(YOKOGAWA)BARD-400*A FM SAFETY BARRIER good in condition for industry use
(Honeywell)621-3560RC INPUT MODULE 24VDC INPUT CARD,16 PT for industry use
Mitsubishi PLC programmable controller FX2N-128MR-001 for industry use
B&R 7DI435.7 7AT664.70 7AO352.7 good in condition for industry use
YASKAWA V1000 inverter CIMR-VB4A0031 FBA 15KW/11KW 380V for industry use
Toshiba 3CCD Camera and adapter IK-TU40 good in condition for industry use
Yaskawa servo driver SGDH-10AE good in condition for industry use
Honeywell RAM MODULES 620-0024 6200024 good in condition for industry use
Siemens PLC module 6FC5511-0CA00-0AA0 good in condition for industry use
Yaskawa servo motor SGMGH-09ACA61 good in condition for industry use
HARMONIC servo driver HA-675-2-SP good in condition for industry use
Yaskawa servo driver SGDB-30AM good in condition for industry use
FM452,6ES7 452-1AH00-0AE0,6ES7452-1AH00-0AE0 electronic cam controller warranty
Siemens computer spare parts 6EA9643-3AA00-0AX0 for industry use