| 领域 | 默认值 | 描述 |
|---|---|---|
| Valve Gain Near High Limit [t/v] （接近高限时阀门增益） | 1.0 | 在接近阀门高限时的阀位-设定点增益值。SMOCPro在计算中使用该值计算高低限（见下文）。 • SPC: 对于正作用控制器（增加控制器的设定值时自动增加阀位），增益必须为正。对于反作用控制器（增加控制器的设定值时自动减小阀位），增益必须为负。• DDC: 必须设定为1.0； • 对正作用控制器:   |
| Valve Gain Near Low Limit [t/v] （接近低限时阀门增益） | 1.0 | 在接近阀门低限时的阀位-设定点增益值。其用于在计算中使用此值计算高低限（见下文）。• SPC: 对于正作用控制器（增加控制器的设定值时自动增加阀位），增益必须为正。对于反作用控制器（增加控制器的设定值时自动减小阀位），增益必须为负。• DDC: 必须设定为1.0；•对正作用控制器:   |
| Feed forward [t/v] （前馈） | True | 此标签(True/False)用于指示当MV是INACTIVE时此MV的Setpoint Readback（设定点回读）是否用于抑制前馈干扰。 |
| Setpoint High Limit [t/v] （设定值上限） | 10000000.0 | DDC: 必须与阀门上限相同。 |
| Setpoint Low Limit [t/v] （设定值下限） | -10000000.0 | 写入MV输出位号值的最低限。 DDC: 必须与阀门下限相同。 |
| Setpoint High Entry Limit [t/v]（设定点输入高限） | 10000000.0 | 该值定义了允许定义SetPoint High的最高值。 |
| Setpoint Low Entry Limit [t/v] （设定点输入低限） | -10000000.0 | 该值定义了允许定义SetPoint Low的最低值。 |
| Valve High Limit [t/v] （阀位高限） | 100.0 | 阀位高限。这是SMOCPro用于计算内部设定点限制的。 不论控制器是正作用还是反作用，Valve High Limit 必须大于Valve Low Limit。 |
| Valve Low Limit [t/v]（阀位低限） | 0.0 | 阀位低限。这是SMOCPro用于计算内部设定点限制的。 不论控制器是正作用还是反作用，Valve Low Limit必须小于Valve High Limit。 |
| Essential For Control [t/v] （重要控制） | False | 此标签(True/False)用于指示此MV对其子控制器（见Max Time Off Control）的正常运行(ACTIVE)是否是必不可少的。 |
原文：
| Field | Default Value | Description |
|---|---|---|
| Valve Gain Near High Limit [t/v] | 1.0 | Value of the valve-to-setpoint gain near the Valve High Limit. SMOCPro uses this value in the calculations of the Calculated High and Low Limits (see below). • SPC: For direct acting controllers (increasing the setpoint with the controller in automatic increases the valve position), the gain must be positive. For reverse acting controllers (increasing the setpoint with the controller in automatic decreases the valve position), the gain must be negative. • DDC: Must be set to 1.0 • For direct acting controllers: • For reverse acting controllers: IMPORTANT NOTE: Please refer to the section below entitled “Discussion about the Valve Gain Near High- and Low Limits—dSPdV” for a more complete discussion and explanation regarding these concepts. Our recommendations are also given in this section. |
| Valve Gain Near Low Limit [t/v] | 1.0 | Value of the valve-to-setpoint gain near the Valve Low Limit. This is used in the calculations of Calculated High Limit and Calculated Low Limit (see below).• SPC: For direct acting controllers (increasing the setpoint with the controller in automatic increases the valve position), the gain must be positive. For reverse acting controllers (increasing the setpoint with the controller in automatic decreases the valve position), the gain must be negative. • DDC: Must be set to 1.0 • For direct acting controllers: • For reverse acting controllers: IMPORTANT NOTE: Please refer to the section below entitled “Discussion about the Valve Gain Near High- and Low Limits—dSPdV” for a more complete discussion and explanation regarding these concepts. Our recommendations are also given in this section. |
| Feed forward [t/v] | True | Flag (True/False) to indicate whether the Setpoint Readback of this MV should be used for feed forward disturbance rejection when the MV is INACTIVE. |
| Setpoint High Limit [t/v] | 10000000.0 | DDC: Must be identical to Valve High Limit. |
| Setpoint Low Limit [t/v] | -10000000.0 | Minimum limit for the value written to the MV Output Tag. DDC: Must be identical to Valve Low Limit. |
| Setpoint High Entry Limit [t/v] | 10000000.0 | This value defines the highest value allowed for SetPoint High. |
| Setpoint Low Entry Limit [t/v] | -10000000.0 | This value defines the lowest value allowed for SetPoint Low. |
| Valve High Limit [t/v] | 100.0 | High limit for the Valve Position. This is used in SMOCPro to calculate internal setpoint limits. Valve High Limit must be greater than Valve Low Limit, regardless of whether the controller is direct or reverse acting. |
| Valve Low Limit [t/v] | 0.0 | Low limit for the Valve Position. This is used in SMOCPro to calculate internal setpoint limits. Valve Low Limit must be less than Valve High Limit, regardless of whether the controller is direct or reverse acting. |
| Essential For Control [t/v] | False | Flag (True/False) to indicate if this MV is essential for the continued (ACTIVE) operation of its sub-controller (see Max Time Off Control). |
2016.6.26
