DI modules of DDC intelligent hardware

Abstract

The invention provides DI modules of DDC intelligent hardware. The DI modules are connected with a CPU module and directly connected with I / O of a microprocessor MCU via monitoring point interfaces. The multiple I / O of the microprocessor MCU can be connected with four monitoring points of analog quantity input AI, digital quantity input DI, analog quantity output AO and digital quantity output DO via the monitoring point interfaces or connected with any three or two or one of the four monitoring points. Power supply 1 interfaces and power supply 2 interfaces and the power supply interfaces on the four modules of CPU module, analog quantity input AI, analog quantity output AO and digital quantity output DO or the modules of arbitrary combinations of the four monitoring points are identical in specification and power supply polarity sequence arrangement. The beneficial effects of the DI modules of DDC intelligent hardware are that working hours and material of each link of purchasing, production, sales, assembling, installation, operation and maintenance can be greatly saved, the requirement for the professional skills of the employees of the related links can be reduced, transformation of the monitoring points is convenient, application is flexible, practicality is high and production standardization is easy.

Description

technical field [0001] The invention relates to a DI module of DDC intelligent hardware, which is usually used for the processing of digital quantity input DI for system control of environment and equipment. Background technique [0002] Most of the existing DDC controllers have an integrated structure, and the monitoring points (ie AI / DI / AO / DO) and the microprocessor (MCU) are on the same PCB, and the number of each monitoring point is mostly fixed; some are It is connected with the monitoring point through the communication interface, which results in more programming addresses in the CPU module, a large amount of programs, and cumbersome programming. Also, the technology in ZL200910245186.6 cannot be promoted because of the large space occupied by a single monitoring point. Most of the existing DDCs have no man-machine interface or intelligent interface, such as Siemens Climatix product series, general series RWD68, RWD68 / CN, Honeywell UB local controller UB1211CH, UB220...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing DDC controllers have an integrated structure, and the monitoring points (ie AI / DI / AO / DO) and the microprocessor (MCU) are on the same PCB, and the number of each monitoring point is mostly fixed; some are It is connected to the monitoring point through the communication interface, which results in more programming addresses in the CPU module, a large amount of programs, and cumbersome programming.

Also, the technology in ZL200910245186.6 cannot be promoted because of the large space occupied by a single monitoring point

Most of the existing DDCs have no man-machine interface or intelligent interface, such as Siemens Climatix product series, general series RWD68, RWD68 / CN, Honeywell UB local controller UB1211CH, UB2204CH, UB2221CH, UB4334SCH, Honeywell Excel 800 General-purpose controllers and Johnson FEC DDC controllers. Therefore, the existing DDC controllers in the market consume a lot of man-hours and materials in the actual application process, and have high professional requirements for personnel, so it is not easy to standardize

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