140DDI85300C
140DDI85300C
當然,A值越大越好,它可使PLC系統得到充分的利用,是為什么要使用PLC的重要指標。而從上式可知,MTBF越大,MTTR越小,則A越大。所以,PLC的可靠措施都是圍繞提高MTBF及MTTR值進行的。
鑒于可靠工作是PLC的重要特點,至關重要,故有關提高MTBF及降低MTTR的措施如何,以及PLC的MTBF與MTTR值也成為PLC性能的重要指標。
8經濟指標
以上七條講的都是PLC的技術性能。其實,使用PLC,還要考慮經濟指標。經濟是基礎,經濟上不合算,不能帶來經濟效益,使用PLC也就沒有基礎。所以,這個指標也是重要的。經濟指標zui簡單的就是看價格。一般講,同樣技術性能的PLC,價格低其經濟指標就好
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EMECANIQUE 1 CH FAST U/D COUNT. MOD. MODULE C/D RAPI
HEIDENHAIN 294 742 05 640MM LINEAR ENCODER, LS 176
SIEMENS ABB ROBOTICS AC SERVO MOTOR 1FT3074-5AZ21-9-Z *
DANFOSS 10HP VLT 5000 AQUA VARIABLE FREQUENCY AC DRIVE
AEG 2.8A MICROVERTER VARIABLE SPEED AC DRIVE 1.8/380 /
XYCOM INDUSTRIAL COMPUTER OPERATOR INTERFACE 9485
ALLEN BRADLEY ADJUSTABLE FREQUENCY AC DRIVE 1336S-BRF10
FANUC ROBOTICS a6/3000 AC SERVO MOTOR A06B-0128-B577#70
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ALLEN BRADLEY PanelView 900 OPERATOR INTERFACE 2711-T9C
INTERMEC TECHNOLOGIES VEHICLE MOUNT COMPUTER OPERATOR I
FANUC ROBOTICS OPERATOR'S PANEL A02B-0303-C231
FANUC ROBOTICS MDI UNIT OPERATOR INTERFACE A02B-0303-C3
RELIANCE ELECTRIC 5HP AC VARIABLE SPEED VS DRIVE 1AC200
BERGER LAHR SERVO MOTOR SER397/4L3SS0CO
DYNICS OPERATOR INTERFACE TOUCH SCREEN CH12THIO4T1WTF14
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BOSCH POWER SUPPLY VM 60/EB-TA
MITSUBISHI ELECTRIC TOUCH SCREEN INTERFACE E1101 *PARTS
BOSCH 520VAC 30A AC SERVO DRIVE SM 20/30 GTC
KOLLMORGEN GOLDLINE DIRECT DRIVE ROTARY SERVO MOTOR DH0
BALDOR 30HP 1760RPM 3-PHASE INDUSTRIAL AC MOTOR N4104T
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FANUC ROBOTICS POWER MATE MODEL D A02B-0166-B531 *CRACK
FANUC ROBOTICS 30S/3000 AC SERVO MOTOR A06B-0319-B202#7
RELIANCE ELECTRIC 1AMP AC / 9AMP DC SNUBBER RESISTOR KI
SEW-EURODRIVE 230/460V 1HP 48.00 RATIO GEAR MOTOR DFT80
BUSCH DRY-SEALED ROTARY VANE VACUUM PUMP SV 1025 C 000
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AEG GETTYS PERMANENT MAGNET SERVO MOTOR M33Y-SNRA-YY0Y-
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BALDOR 208-230/460V15HP 3500RPM AC MOTOR SPEC. 07H802W3