Title:
フィールド機器
Document Type and Number:
Japanese Patent JP5585322
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a field instrument having a high degree of freedom of specification change that makes an additional function available through purchase of a license key as required, and having an appropriate cost-effectiveness.SOLUTION: A field instrument provided with standard functions and additional functions comprises an additional function management means for performing management so that the additional functions are freely available in a predetermined period that is set as a trial period and after the trial period has passed, they are available through purchase of predetermined license keys.
Inventors:
Kiyoshi Watanabe
Yosuke Iwata
Yosuke Iwata
Application Number:
JP2010198809A
Publication Date:
September 10, 2014
Filing Date:
September 06, 2010
Export Citation:
Assignee:
YOKOGAWA ELECTRIC CORP.
International Classes:
G05B23/02; G06F21/10