| 領(lǐng)域 | 默認(rèn)值 | 描述 |
|---|---|---|
| Calculated Low Limit [t/v](計(jì)算低限) | 0.0 | 根據(jù)Setpoint High/Low Limit, Valve High/Low Limit和Valve Gain Near High/Low Limit計(jì)算內(nèi)部MV低限。 只有當(dāng)Advanced選中時(shí)才可見。對(duì)于正/反作用控制器:![]() |
| Incremental Value of MV [t/v] (MV增量值) | 0.0 | 下一步控制作用,即當(dāng)前值的MV偏差(內(nèi)核輸出參數(shù))。只有選中Advanced時(shí)才顯示。 |
| Absolute Value of MV [t/v] (MV絕對(duì)值) | 0.0 | 下一步MV絕對(duì)值(內(nèi)核輸出參數(shù))。只有選中Advanced時(shí)才顯示。 |
| Constraint Flag [t/v] (約束標(biāo)志) | 0.0 | 對(duì)于計(jì)算MV高/低限的約束行為(0:無約束;+1:高約束;-1:低約束)(內(nèi)核輸出參數(shù))。只有選中Advanced時(shí)才顯示。 |
| Steady State Reachable Value [t/v] (可到達(dá)穩(wěn)態(tài)值) | 0.0 | MVs的預(yù)測(cè)穩(wěn)態(tài)值(內(nèi)核輸出參數(shù))。只有選中Advanced時(shí)才顯示。 |
| Steady State Constraint Flag [t/v] (穩(wěn)態(tài)約束標(biāo)簽) | 0.0 | 穩(wěn)態(tài)時(shí)(內(nèi)核輸出參數(shù))的預(yù)測(cè)約束行為(0:無約束;+N:高約束;-N:低約束)。N值提供了約束活躍的細(xì)節(jié),1~100:CV約束優(yōu)先級(jí);101:經(jīng)濟(jì)優(yōu)化;111:混合比約束。只有選中Advanced時(shí)才顯示。 |
| Actual MV Status [t/v] (MV實(shí)際狀態(tài)) | INACTIVE | MV(內(nèi)核輸出參數(shù))實(shí)際狀(BAD/ACTIVE/INACTIVE)。只有選中Advanced時(shí)才顯示。 |
注:對(duì)某些DCS系統(tǒng),設(shè)定值回讀位號(hào)與輸出位號(hào)是相同的。
原文:
| Field | Default Value | Description |
|---|---|---|
| Calculated Low Limit [t/v] | 0.0 | Calculated internal MV low limit based on Setpoint High/Low Limit, Valve High/Low Limit and Valve Gain Near High/Low Limit. Visible only when Advanced option is selected. For both direct and reverse acting controllers: where LoLim is computed as per the Valve Gain Near High Limit or Valve Gain Near Low Limit specification above. |
| Incremental Value of MV [t/v] | 0.0 | Next control action, i.e. the MV deviation from current value (Kernel output parameter). Visible only when Advanced option is selected. |
| Absolute Value of MV [t/v] | 0.0 | Next absolute MV value (Kernel output parameter). Visible only when Advanced option is selected. |
| Constraint Flag [t/v] | 0.0 | Constraint activity (0:Not-limited, +1:High-limited, -1:Low-limited) with respect to MV calculated high/low limit (Kernel output parameter). Visible only when Advanced option is selected. |
| Steady State Reachable Value [t/v] | 0.0 | The predicted steady state values of MVs (Kernel output parameter). Visible only when Advanced option is selected. |
| Steady State Constraint Flag [t/v] | 0.0 | The predicted constraint activity (0:Not-limited, +N:High-limited, -N:Low-limited) at steady state (Kernel output parameter). The value of N provides details on what has made constraint active, 1~100:the priority level for the CV constraints, 101: economic optimization, 111:blending ratio constraints. Visible only when Advanced option is selected. |
| Actual MV Status [t/v] | INACTIVE | The actual status (BAD/ACTIVE/INACTIVE) of MV (Kernel output parameter). Visible only when Advanced option is selected. |
NOTE: In some DCS systems, the Setpoint Readback Tag is identical to the Output Tag.
DV詳情
| 名稱 | 默認(rèn)值 | 描述 |
|---|---|---|
| Alias(別名) | 工作區(qū)中DV變量名。 | |
| Description(描述) | DV變量描述(與GMB中的DV描述相聯(lián)系) | |
| Measurement Tag [t](測(cè)量位號(hào)) | DV測(cè)量位號(hào)名 | |
| Disconnect Flag [t/v](斷開標(biāo)簽) | False | 此標(biāo)簽(True/False)用于指示該DV的測(cè)量值是否應(yīng)該被前饋干擾抑制所忽略。 (如果斷開,SMOCPro將對(duì)DV使用內(nèi)部預(yù)測(cè)) |
| Essential For Control [t/v](重要控制) | False | 此標(biāo)簽(True/False)用于指示此DV對(duì)與其關(guān)聯(lián)子控制器持續(xù)(ACTIVE)操作是否是必須的。 (見Max Time Invalid 最大無效時(shí)間) |
| Max Time Invalid [t/v](最大無效時(shí)間) | 0 | 如果DV測(cè)量量處于INACTIVE時(shí)計(jì)時(shí)器將啟動(dòng)。如果計(jì)時(shí)器超過此指定值(s)且DV是重要控制,則DV的子控制器將被設(shè)為INACTIVE。 |
原文:
**DV Details **
| Name | Default Value | Description |
|---|---|---|
| Alias | Name of the DV variable in the workspace. | |
| Description | DV Variable description (linked to the DV description in GMB). | |
| Measurement Tag [t] | Tagname for the DV measurement. | |
| Disconnect Flag [t/v] | False | Flag (True/False) to indicate if the measurement of this DV should be ignored for feed forward disturbance rejection (SMOCPro will use internal prediction for the DV if it is Disconnected). |
| Essential For Control [t/v] | False | Flag (True/False) to indicate if this DV is essential for the continued (ACTIVE) operation of its associated Sub-Controller (see also Max Time Invalid). |
| Max Time Invalid [t/v] | 0 | If the DV measurement is INACTIVE a timer will start. If the timer exceeds this specified value (seconds) and the DV is Essential for Control, then the DVs Sub-Controller will be set INACTIVE. |
2016.6.26
