PROGRAMMABLE DISPLAY DEVICE AND USED ELECTRIC ENERGY CALCULATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To calculate electric energy used by external connection apparatuses individually or in a lump without introducing electric energy measurement apparatuses each measuring electric energy used by each external connection apparatus, and to display a calculated result thereof.

SOLUTION: This programmable display device connected to a controller controlling the plurality of external connection apparatuses includes: a storage part storing external connection apparatus information including each used electric energy used in each of the plurality of external connection apparatuses; a communication part acquiring an operation time of each of the plurality of external connection apparatuses controlled by the controller; and a calculation part calculating each cumulative used electric energy used by each of the plurality of external connection apparatuses based on the operation time of each of the plurality of external connection apparatuses acquired by the communication part and the external connection apparatus information stored by the storage part.

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