| 摘要 |
A positioner operating mode identifying function and an use parameter selecting function are provided in a calculating unit. A positive operating parameter and a negative operating parameter are stored in a storing portion. The positioner operating mode identifying function identifies the operating mode of a positioner or from the direction of change of a control output and the direction of change of an amplified pneumatic pressure signal Pout, and the identification result is set automatically as the current operating mode of the positioner. In accordance with the current operating mode identified for the positioner, the use parameter selecting function selects, as the use parameter from the storing portion, the positive operating parameter if the positive operating mode, and the negative operating parameter if the negative operating mode, and sets the selected use parameter automatically. |
