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control device

A control device, a technology for controlling operations, applied in control/regulation systems, liquid level indicators for physical variable measurement, instruments, etc.

Active Publication Date: 2015-10-28
YAMATAKE HONEYWELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, although there is also a control device that secures the lower limit value OL and the upper limit value OH of the operating amount dedicated to the automatic tuning function for adjusting the PID parameters in a special storage area (see Patent Document 2), but the storage area Always dedicated when autotune is performed

Method used

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Experimental program
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no. 1 Embodiment approach ］

[0070] Hereinafter, the first embodiment of the present invention will be described with reference to the drawings. This embodiment corresponds to the principle 1 of the invention and the principle 3 of the invention described above. figure 1 It is a schematic block diagram of the configuration of the control device of this embodiment. The control device of the present embodiment has: an operation amount upper limit value OH1 storage unit 1, which mainly stores an operation amount upper limit value OH1 arbitrarily set through communication; an operation amount upper limit value OH2 storage unit 2, which mainly stores The operation amount upper limit value OH2 is set by the user for storage; the upper limit value selection unit 3 compares the operation amount upper limit value OH1 with the operation amount upper limit value OH2, and uses the smaller one as the upper limit limit processing unit described later The upper limit value OH of the operating amount used; the control co...

no. 2 Embodiment approach ］

[0102] Next, the second embodiment of the present invention will be described. This embodiment is another example corresponding to principle 1 of the invention and principle 3 of the invention described above. image 3 It is a schematic block diagram of the configuration of the control device of this embodiment. The control device of the present embodiment has: a control calculation unit 4; an operation amount lower limit value OL1 storage unit 7, which mainly stores an operation amount lower limit value OL1 arbitrarily set through communication; and an operation amount lower limit value OL2 storage unit 8. It mainly stores the lower limit value OL2 of the operation amount set by the user; the lower limit value selection unit 9, which compares the lower limit value OL1 of the operation amount with the lower limit value OL2 of the operation amount, and uses the larger one as The lower limit value OL of the operation amount used by the lower limit processing unit described later;...

no. 3 Embodiment approach ］

[0131] Next, a third embodiment of the present invention will be described. In this embodiment, the structure corresponding to the principle 2 of the invention and the principle 4 of the invention described above is added to the first embodiment. Figure 5 It is a schematic block diagram of the configuration of the control device of this embodiment. The control device of this embodiment has: operation amount upper limit value OH1 storage unit 1; operation amount upper limit value OH2 storage unit 2; upper limit value selection unit 3; control calculation unit 4; upper limit limit processing unit 5a, which performs upper limit limit Processing, limiting the operation amount MV calculated by the control arithmetic unit 4 to a value below the upper limit value OH used by the upper limit selection unit 3 or the upper limit change unit described later; alarm output unit 6; operation amount Lower limit value OL2 storage unit 8; lower limit limit processing unit 10a, which performs lo...

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Abstract

A controlling device includes an operating volume upper limit value OH1 storage unit that stores an operating volume upper limit value OH1 set from a device on a higher-level side, an operating volume upper limit value OH2 storage unit that stores an operating volume upper limit value OH2 set by an operator, an upper limit value selector that compares the operating volume upper limit values OH1 and OH2, and using the smaller as an operating volume upper limit value OH to be used in an upper limit limiting procedure, a control calculator that calculates an operating volume MV, and an upper limit processor that performs the upper limit limiting procedure to control the operating volume MV, calculated by the control calculator, to a value that is no greater than the operating volume upper limit value OH used by the upper limit value selector.

Description

Technical field [0001] The present invention relates to a lower-level control device used in combination with a higher-level device when a control solution using at least one of an upper limit of an operating amount and a lower limit of the operating amount is performed by a higher-level device. Background technique [0002] With the revision of laws due to global warming issues, etc., there is a strong demand for management of energy usage in factories and production lines. Heating equipment and air-conditioning equipment in factories are equipment devices that use particularly large amounts of energy, and they are often managed so that the upper limit of energy use is controlled to be lower than the original maximum amount. For example, in facilities and devices that use electric power, operations that are restricted to a specific amount of electric power are performed in accordance with instructions from the electric power demand management system. [0003] In particular, in a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/66
CPCG01F23/22
Inventor 田中雅人
Owner YAMATAKE HONEYWELL CO LTD