US 8,948,888 B2Granted

Human machine interface device and interface integration method thereof

AssigneeDelta Electronics, Inc.

InventorsHsu-Yuan Kuo, Ching-Yang Wu

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Abstract

A human machine interface device and an interface integration method thereof are provided. The human machine interface device cooperates with a programmable logic controller. The programmable logic controller comprises a first program unit and a second program unit. The human machine interface device comprises a processor and a memory. The memory comprises a first address storing an operation variable and a second address storing a first common variable. The operation variable corresponds to the first logic operation via the first common variable. When the types and the amounts of the input/output parameters of the first program unit and the second program unit are the same, the processor causes the operation variable to correspond to the second program unit by updating the first common variable into a second common variable.

Claims8

Dependent claims

An interface integration method for use in a human machine interface (HMI) device, the HMI device comprising a processor and a memory, the HMI device cooperating with a programmable logic controller (PLC), the PLC comprising a first program unit and a second program unit, the first program unit being capable of executing a first logical operation stored in a first entity location and the second program unit being capable of executing a second logical operation stored in a second entity location, the interface integration method comprising the following steps of:

(a) declaring an operation variable by the processor;
(a1) building an operation variable element in a user interface according to the operation variable so that a user connects the operation variable element to at least one configuration element and operates the operation variable via the operation variable element in the user interface;
(b) storing the operation variable into a first address of the memory by the processor;
(c) defining a first common variable according to entity information of the first program unit and storing the first common variable into a second address of the memory by the processor, wherein there is a correspondence relation between the second address and the first address of the memory;
(d) instructing the operation variable to correspond to the first entity location according to the correspondence relation and the first common variable by the processor;
(e) defining a second common variable according to entity information of the second program unit by the processor;
and
(f) replacing the first common variable with the second common variable in the second address of the memory and instructing the operation variable to correspond to the second entity location according to the correspondence relation and the second common variable by the processor, wherein types and amounts of input/output parameters of the first program unit are the same as those of the second program unit.

5 more elements

An HMI device, cooperating with a PLC, the PLC comprising a first program unit and a second program unit, the first program unit being capable of executing a first logical operation stored in a first entity location and the second program unit being capable of executing a second logical operation stored in a second entity location, the HMI device comprising:

a memory, comprising a first address and a second address, and there being a correspondence relation between the second address and the first address;
and
a processor electrically connected to the memory, being configured to declare an operation variable, to store the operation variable into the first address of the memory, to define a first common variable according to entity information of the first program unit, to store the first common variable into the second address of the memory, to instruct the operation variable to correspond to the first entity location where the first program unit executes the first logical operation according to the correspondence relation and the first common variable, to define a second common variable according to entity information of the second program unit, to replace the first common variable with the second common variable in the second address of the memory, and to instruct the operation variable to correspond to the second entity location where the second program unit executes the second logical operation according to the correspondence relation and the second common variable, wherein types and amounts of input/output parameters of the first program unit are the same as those of the second program unit;
and
a user interface module, being configured to provide a user interface;
wherein the processor is further configured to build an operation variable element in the user interface according to the operation variable so that a user connects the operation variable element to at least one configuration element, and operates the operation variable via the operation variable element in the user interface.

3 more elements

Dependencies are inferred from the claim text.