DO modules of DDC smart hardware

Abstract

The invention provides DO modules of DDC smart hardware. The DO modules can have different number of DOs. The DO modules can be connected to a plurality of CPU modules and are in direct connection with I / Os of a MCU on a CPU module. The I / Os of the MCU can be connected to four kinds of monitoring points including AIs (Analog Input), DIs (Digital Input), AOs (Analog Output) and DOs (Digital Output) through monitoring point interfaces or one, two or three kinds of the four kinds of the monitoring points. Power source 1 interfaces and power source 2 interfaces in the DO modules are of specifications identical to those of power interfaces in the CPU modules, AI modules, AO modules, DI modules and modules with arbitrary combination of the four monitoring points and the power source polarity sequences are identical. The invention has beneficial effects that time and material consumed in all links such as purchase, production, sales, assembly, installation, operation, maintenance and the like can be saved substantially, technical requirements for operators can be reduced and the monitoring points can be changed conveniently and flexibly. The DO modules of the DDC smart hardware are high in practicability.

Description

technical field [0001] The invention relates to a DO module of DDC intelligent hardware, which is usually used for the processing of digital quantity output DO of system control of environment and equipment. Background technique [0002] Most of the existing DDC controllers have an integrated structure, such as figure 1 , 2 As shown, 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 connected to the monitoring points 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 con...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing DDC controllers have an integrated structure, such as figure 1 , 2 As shown, 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 connected to the monitoring points 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 Excel800 general purpose Controller, and Johnson FEC DDC controller, therefore, the existing DDC controller in the market consumes more man-hours and materials in the actual application process, has high professional requirements for personnel, and is not easy to standardize

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