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Allocator for automatically allocating address to serial bus device and method for controlling the same

A technology of serial bus and device address, which is applied in the direction of comprehensive factory control, comprehensive factory control, electrical program control, etc., to achieve the effect of convenient maintenance and replacement of equipment and reducing the possibility of human error

Active Publication Date: 2005-08-17
SHANGHAI STEP ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an automatic serial bus device address allocator and its control method, aiming at solving the defects of currently manually setting device addresses

Method used

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  • Allocator for automatically allocating address to serial bus device and method for controlling the same
  • Allocator for automatically allocating address to serial bus device and method for controlling the same

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Embodiment Construction

[0028] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0029] Depend on figure 1 It can be seen that the address allocator for automatically assigning serial bus devices of the present invention includes a serial communication bus 1 and an address identification line 2; the address identification line 2 sequentially connects the devices 3 on the serial bus.

[0030] All devices on the serial communication bus share the communication medium. All devices on the serial communication bus add an input port and an output port. In addition, address identification lines are added between adjacent connected devices. The front-end device A has no address identification Line input line, its output line is connected to the input line of device B through the address identification line, the output line of device B is connected to the input line of device C through the address identification line, and so on, the ...

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Abstract

This invention relates to a distributor for automatically distributing serial bus equipment address and its control method. The distributor includes a serial communication bus, an address identifying line-connecting equipments on the serial bus orderly. Advantage: the device addresses on the serial bus are automatically assigned, it's not necessary to design address for installation of devices, every time when the device is turned on, the address on the device of serial bus is automatically distributed. An intelligent controller controls the address distribution of the communication device.

Description

technical field [0001] The invention relates to a serial bus network used by an industrial intelligent controller, in particular to an automatically assigning serial bus device address distributor and a control method thereof. Background technique [0002] With the development of technology, embedded controllers and serial buses are widely used in the field of industrial control. [0003] When using a serial bus, all devices on the bus share the communication medium, and the communication information sent by any device can be received by other devices on the bus. In order to mark the device sending or receiving information, each device must be assigned a communication address . [0004] The current solution is generally to pre-set the communication address of each device connected to the bus or manually set the device address during installation; this method wastes the installation time and wastes labor costs; if the device address is set incorrectly, it will lead to commun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 王春祥沈辉忠蔡亮
Owner SHANGHAI STEP ELECTRIC
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