供应

1.点动控制时，按点动正转按钮，电动机正转点动运行，运料年左行；按点动反转按钮，电动机反转点动运行，运料车右行。2.连续控制时，按正转按钮，电动机连续正转，运科车连续左行；按反转按钮，电动机连续反转，运料车连续右行；按停止按钮，运料车随时停止。3.运料车应有软、硬件互锁控制功能。要求用前面已经学过的编程元件和试着编写PLC控制编程（梯形图）：（1）用触点线圈指令编程；（2）用置位复位指令编程;（3）用跳转与跳转标号指令编程。一、设计电气原理图1.选择电器元件及PLC型号输入信号：点动正转按钮1个、点动反转按钮1个、连续正转按钮1个、连续反转按纽1个、停止按钮1个，输入信号共5个，要占用5个输入端子，所以PLC输入至少需5点。（这里说明一下，限位因篇幅的原因，不做考虑）。输出信号：正转接触器1个、反转接触器1个，占用PLC两个输出端子，所以PLC输出至少需2点。查西门子PLC用户手册可知，CPU221主机输入6点、输出4点，能满足实际需求的输入5点输出2点的要求。因PLC控制电动机，所以继电器输出型的PLC就能满足要求，选择CPU221继电器输出型的PLC即可。2. 设计电气原理图

1794-IF2XOF2I

1794-IF2XOF2IXT

1794-IF4I

1794-IF4IXT

1794-IF8IH

1794-IG16

1794-IH16

1794-IJ2

1794-IJ2K

1794-IJ2XT

1794-IM16

1794-IM8

1794-IP4

1794-IRT8

1794-IRT8K

1794-IRT8XT

1794-IT8

1794-IV16

1794-IV32

1794-LBL

1794-N2

1794-NM1

1794-OA16

1794-OA8

1794-OA8I

1794-OA8K

1794-OB16

1794-OB16D

1794-OB16P

1794-OB16PK

1794-OB16PXT

1794-OB8

1794-OB8EP

1794-OB8EPK

1794-OB8EPXT

1794-OC16

1794-OE4K

1794-OE4XT

1794-OE8H

1794-OF4I

1794-OF4IXT

1794-OF8IH

1794-OG16

1794-OM16

1794-OM8

1794-OV16

1794-OV16P

1794-OV32

1794-OW8K

1794-OW8XT

1794-PS13

1794-PS3

1794-TB2

1794-TB32

1794-TB32S

1794-TB37DS

1794-TB37EXD4CM8

1794-TB37EXD4VM8

1794-TB3GK

1794-TB3GQ28

1794-TB3GS

1794-TB3GSK

1794-TB3GSQ28

1794-TB3K

1794-TB3Q28

1794-TB3S

1794-TB3SK

1794-TB3SQ28

1794-TB3T

1794-TB3TK

1794-TB3TQ28

1794-TB3TS

1794-TB3TSK

1794-TB3TSQ28

1794-TB62DS

1794-TB62EXD4X15

1794-TBDSJMPR

1794-TBKD

1794-TBN

1794-TBNF

1794-TBNFQ28

1794-TBNK

1794-TBNQ28

1794-VHSC

170-NX100

170-NX101

170-NX102

170-NX103

170-NX104

170-NX105

170-NX106

170-NX107

170-NX108

170-NX109

170-PW23

170-PW37

170-PW43

170-PW72

170-PW85

171047A

171091A

1713-201

1713-202

1714-201

1714-204

1719-201

1719-203

1720-203

1720-204

1721-205

1732D-16CFG1212W

1732D-16CFGM12MN

1732D-8CFGM12

1732D-8CFGM8

1732D-8I8O1212D

1732D-8X81212D

1732D-8X81212HD

1732D-8X8M12D

1732D-IB161212D

1732D-IB161212W

1732D-IB16M12MINI

1732D-IB8M12

1732D-IB8M8

1732D-IBDPM12MND

1732D-OB16M12M12

1732D-OB16M12MINI

1732D-OB8EM12

1732D-OB8EM8

1732DS-IB8

1732DS-IB8XOBV4

1732E-16CFGM12

1732E-16CFGM12R

1732E-16CFGM12W

1732E-8X8M12DR

1732E-IB16M12

1732E-IB16M12DR

1732E-IB16M12R

1732E-IB16M12SOEDR

1732E-IB16M12W

1732E-OB16M12

1732E-OB16M12DR

1732E-OB16M12R

1732P-16CFGM12

1732P-8CFGM12

1732P-8CFGM8

1734-232ASC

1734-485ASC

1734-8CFG

1734-8CFGDLX

1734-ADN

1734-ADNX

1734-AENT

1734-AENTR

1734-APB

1734-ARM

1734-CTM

1734D-IA16

1734D-IA16S

1734D-IA8XOA8

1734D-IA8XOA8S

1734D-IA8XOW8

1734D-IA8XOW8S

1734D-IB16

1734D-IB16S

1734D-IB8XOB8E

1734D-IB8XOB8ES

1734D-IB8XOW8

1734D-IB8XOW8S

1734-EPAC

1734-EXT1

1734-EXT3

1734-FPD

1734-IA2

1734-IA4

1734-IB2

1734-IB4

1734-IB4D

1734-IB8

1734-IB8S

1734-IE2V

1734-IE4C

1734-IE8C

1734-IJ

1734-IK

1734-IM2

1734-IM4

1734-IR2

1734-IR2E

1734-IT2I

1734-IV2

1734-IV4

1734-IV8

1734-OA2

1734-OA4

1734-OB2

1734-OB2E

1734-OB2EP

1734-OB4

1734-OB4E

1734-OB8