GE 350-9301007768-322001 A2,燃機通用電氣模塊
在不模擬過程信號但增加數字濾波器的情況下，很難模擬自動調諧特性AIN1上的參數將有助于使過程看起來更現(xiàn)實。要將數字濾波器更改為值：大約10按照第2節(jié)中的配置路線圖或執(zhí)行以下步驟。
1.按ENTER/EXIT CONF。
2.按兩次“向下”以顯示視圖。
3.使用右箭頭按鈕或脈沖發(fā)生器旋鈕顯示編輯FB。
4.按下“功能塊菜單”的“下一步”。
5.使用右箭頭按鈕或脈沖發(fā)生器旋鈕顯示AIN1。
6.按下“參數菜單”下的“步進”。
7.使用右箭頭按鈕或脈沖發(fā)生器旋鈕顯示DIG FILT，然后按下STEP DOWN。
8.旋轉脈沖發(fā)生器旋鈕，將數字濾波器設置為10，然后按存儲。
9.按ENTER/EXIT CONF返回正常操作。
在啟動自動調諧之前，使過程處于穩(wěn)定狀態(tài)
這可以通過將儀器放置在手動模式，并使用脈沖發(fā)生器旋鈕將閥門調至大約中間刻度。顯示過程和等待一兩分鐘，等待過程穩(wěn)定下來。要激活自動調諧功能：
1.按下調諧快速按鈕以顯示自動調諧。
2.將此參數設置為是，按存儲，然后按退出?？刂破鳜F(xiàn)在設置為自動，并且“自動調諧”將閃爍，直到自動調諧完成?？赡艹霈F(xiàn)調諧警告；參見第9.3節(jié)。由于這只是一個模擬，請按確認以清除任何警告。
3.按下調諧按鈕以顯示默認控制器參數和產生的自動調諧（ATUNE）參數。查看參數后，將顯示存儲地址。按存儲按鈕進行更改將控制器參數設置為新值，或按ENTER/EXIT CONF按鈕保持默認值。要在調諧操作完成前取消自動調諧，請按A/M按鈕進入手動模式。有關自動調諧功能的更多詳細信息，請參閱第9.3節(jié)。10.1.10查看模式在對配置進行故障排除時，能夠查看功能的中間輸出通常很有幫助正常操作期間未配置為顯示變量的塊。這可以通過查看模式。
要進入查看模式：
1.按ENTER/EXIT CONF以顯示循環(huán)。
2.按“下一步”以顯示視圖。
3.按下降壓鍵以顯示第一個配置功能塊的第一個輸出。
4.使用脈沖發(fā)生器旋鈕或箭頭按鈕滾動功能塊輸出。請注意，模擬輸出為：
工程單位和離散/狀態(tài)輸出（由功能塊中的黑色陰影箭頭表示圖表）為低（0）或高（1）。
5.按退出返回正常操作模式。
It is difficult to simulate the autotune feature without simulating a process signal but increasing the digital filter
parameter on the AIN1 will help make the process seem more realistic. To change the digital filter to a value
around 10 follow the Configuration Road Map in Section 2 or do the following steps.
1. Press ENTER/EXIT CONF.
2. Press STEP DOWN twice to display VIEW.
3. Use the right arrow button or the pulser knob to display EDIT FB.
4. Press STEP DOWN for Function Block menu.
5. Use the right arrow button or the pulser knob to display AIN1.
6. Press STEP DOWN for parameter menu.
7. Use the right arrow button or the pulser knob to display DIG FILT and Press STEP DOWN.
8. Rotate the pulser knob to set the digital filter to 10 and press STORE.
9. Press ENTER/EXIT CONF to return to normal operation.
Before initiating AUTOTUNE bring the process to steady state. This can be done by placing the instrument in
manual mode and bringing the valve to approximately mid-scale using the pulser knob. Display the process and
wait a minute or two for the process to stabilize.
To activate the AUTOTUNE feature:
1. Press the TUNE Quick Button to display AUTOTUNE.
2. Set this parameter to YES, press STORE, then press EXIT. The controller is now set to AUTO and
“AUTOTUNE” will flash until the AUTOTUNE is finished. Tuning warnings may occur; refer to Section 9.3.
Since this is only a simulation, press ACK to clear any warnings.
3. Press the TUNE button to display the default controller parameters and the resulting AUTOTUNE (ATUNE)
parameters. After viewing the parameters, STORE AT will be displayed. Press the STORE button to change
the controller parameters to the new values or press the ENTER/EXIT CONF button to keep the defaults.
To cancel the AUTOTUNE before the tuning operation is complete, press the A/M button to enter MANUAL mode.
Refer to Section 9.3 for more details on the AUTOTUNE feature. 10.1.10 View mode
When troubleshooting a configuration, it is often helpful to be able to view the intermediate outputs of function
blocks that are not configured as display variables during normal operation. This can be accomplished via the
VIEW mode. To enter VIEW mode:
1. Press ENTER/EXIT CONF to display LOOP.
2. Press STEP DOWN to display VIEW.
3. Press STEP DOWN to display the first output of the first configured function block.
4. Use the pulser knob or arrow buttons to scroll through the function block outputs. Note that analog outputs are
in engineering units and discrete/status outputs (represented by the black shaded arrows in the Function Block
diagrams) are either low (0) or high (1).
5. Press EXIT to return to normal operation mode.
