The paper explained the hardware and software structure of the system, as well as the operational principal. Resolved the problem of how to connect an absolute coder with standard InterBus interface to the system, accomplished automatic measurement and control of ascending height of the brake, so provide the scientific basis to water dispatch.
The paper explained the hardware and software structure of the system, as well as the operational principal. Resolved the problem of how to connect an absolute coder with standard InterBus interface to the system, accomplished automatic measurement and control of ascending height of the brake, so provide the scientific basis to water dispatch.
The controller in this paper can be linked with two different encoder types: absolute rotary encoder (ten-line and eight-bit) and incremental rotary encoder (360 rpm).
Then, the author designs manipulator's pneumatic driving system, the Control system adopts SIMENSE S7-200 PLC as the control core,and replaces the absolute encoder by the incremental encoder to save cost. The research institutes two control schemes of PLC according to the manipulator workflow. The kinematics equation of manipulator is established by D-H method for the relation between the parts and position of manipulator.
The measurement of the sluicegate opening by using IFM BASOLUTE encoder is stated. It resolved the problem of measurement for wide range of 160M and high resolution of 1mm.
The measurement of the sluicegate opening by using IFM BASOLUTE encoder is stated. It resolved the problem of measurement for wide range of 160M and high resolution of 1mm. The IFM encoder is analyzed and the associated LEC-3 Intetfacing controller is present-ed.
Discussed the application of Schneider PLC in the system of remote watch and control on the yellow river brake. The paper explained the hardware and software structure of the system, as well as the operational principal. Resolved the problem of how to connect an absolute coder with standard InterBus interface to the system, accomplished automatic measurement and control of ascending height of the brake, so provide the scientific basis to water dispatch.
This paper presents the control method for novel scraper cleaner automatic system of cokingfurnace in the cokingfactory. The data communication betweenPLC and walking converter,coiling converter,as well as the coderis re-alizedby Profibus-DP. Accuratecontrolofthe trolleyis implementedbyabsolute encoder withProfibus-DPinterface. The monitorofthe productionstatus isrealizedbysettingworkingstation.Whatis more,the designideas andmethods are pro-posed in details.