FBM201d輸出模塊
Ct選項通常僅在寫入PID控制回路中的I/O輸出時使用。輸入T可用于:觸發寫入。如果選擇了“一旦”選項,則輸入S不會發生變化,因此以基于觸發死區觸發寫入,并且可能存在接收設備已丟失價值
輸出QS表示寫入操作的質量,當寫入未完成時,輸出QS將變高(1)
成功地這通常與由于以下原因導致目標設備無法接收數據相關:
通信故障或設備配置錯誤。BATOT功能塊可用于每個循環一個基于并集成模擬輸入。每個都提供
表示總積分值的輸出信號已選擇時基。例如,如果時基為分鐘,輸入A為5.0,持續60分鐘,輸出TL等于300.0。總數可顯示在操作員面板為<循環標簽>。如果配置參數DISP TOT設置為是。六字符在配置中輸入最大名稱(如GAL)在TOT單位下,識別累加器單位。
輸入S斷言為高(1)將停止積分器動作。
輸入R將使積分器功能復位到初始值(初始值)。這些輸入不影響
脈沖輸出。積分器輸出與在配置中輸入的初始值,以提供
計算總數。當BATOT被復位。
DIR ACT設置為“是”將導致積分器增加其輸出為“否”,將導致積分器輸出:減少當初始值設置為預定批次時數量,遞減操作將提供倒計時柜臺這有時是首選的,因為計數然后,輸出表示批次中剩余的數量。
ZDO用于設置一個小的正值,以確保流量關閉時積分器將停止,這如果流量計零點超出校準范圍,則可能不會發生這種情況。功能塊有兩個跳閘預設:預設1和預設2。可將其設置為高輸出(1)當計數總和等于或超過預設值時,從A1或A2開始。輸入的預設值如果參數“快速設置”設置為“是”,也可以使用“快速”按鈕設置配置。QS
DPP參數允許在快速設置期間固定小數點,以加快對這些設置的更改。參數
默認情況下,不帶小數點位置的值適用于將累加器計數作為整個單位處理的應用程序。
可通過向T1和/或T2提供輸入來使用外部預設,使用時,內部預設將為
忽略。如果使用外部預設,則可以在QUICKSET中查看該值,但不能更改。
預設的動作也由積分器的動作設置決定。當DIR ACT設置為“是”時
預設值將是直接作用的,當積分總和等于或時,將導致輸出A1或A2變高
高于預設值。如果設置為“否”,當總和等于或低于時,總和將導致A1或A2變高
預設。實際預設值在輸出T1和T2上可用。
BATOT function blocks can be used on a one per loop
basis and integrate an analog input. Each provides an
output signal representing a total integrated value over the
time base selected. For example, if the time base is
minutes and input A is 5.0 for 60 minutes, output TL
would equal 300.0. The total can be displayed on the
operator faceplate as.T if the configuration
parameter DISP TOT is set to YES. A 6-character
maximum name (e.g. GAL) is entered in configuration
under TOT UNIT to identify the totalizer units.
Input S asserted high (1) will stop the integrator action.
Input R will cause the integrator function to reset to the
initial value (INIT VAL). These inputs do not affect the
PuLse output. The integrator output is summed with the
INITial VALue entered in configuration to provide the
count total. The INIT VAL is used as the total when the
BATOT is reset.
DIR ACT set to YES will cause the integrator to increase
its output while NO will cause the integrator output to
decrease. When INIT VAL is set to a predetermined batch
amount, decreasing action will provide a count down
counter. This is sometimes preferred since the count
output then represents the amount remaining in a batch.
ZDO is used for setting a small positive value, insuring that the integrator will stop when the flow is shut off, which
might not otherwise happen if a flowmeter zero is out of calibration.
The function block has two trip presets: PRESET 1 and PRESET 2. These can be set to cause a high output (1)
from A1 or A2 when the count total equals or exceeds the preset values. The preset values, entered in
configuration, can also be set using the QUICK button if the parameter QUICKSET has been set to YES. The QS
DPP parameter allows fixing the decimal point during quickset to speed up changes to these settings. A parameter
value with no decimal point position, the default, is for applications dealing with the totalizer count as whole units.
An external preset can be used by providing an input to T1 and/or T2 and when used, the internal preset will be
ignored. If an external preset is used, the value can be viewed but not changed in QUICKSET.
The action of the presets is also determined by the action setting of the integrator. When DIR ACT is set to YES
the presets will be direct acting and will cause outputs A1 or A2 to go high when the integrated total is equal to or
higher than the preset. If set to NO the total will cause A1 or A2 to go high when the total is equal to or lower than
the preset. The actual preset value is available on outputs T1 and T2.