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ABB GVC750BE101 數(shù)字輸入模塊

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ABB GVC750BE101 數(shù)字輸入模塊

型號(hào): ABB GVC750BE101 ABB

分類: ABB系統(tǒng)備件

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詳細(xì)介紹

1.使用"加減計(jì)數(shù)"指令,可以遞增和遞減輸出CV的計(jì)數(shù)器值。
2. 當(dāng)輸入CU的信號(hào)狀態(tài)從低電平(“0”)變?yōu)楦唠娖剑?ldquo;1”)時(shí)(即信號(hào)上升沿觸發(fā)),當(dāng)前計(jì)數(shù)器值將加1并存儲(chǔ)在輸出CV中。當(dāng)輸入CD的信號(hào)狀態(tài)從低電平(“0”)變?yōu)楦唠娖剑?ldquo;1”)時(shí)(即信號(hào)上升沿觸發(fā)),輸出CV的計(jì)數(shù)器值將減1。如果在一個(gè)程序周期內(nèi),同時(shí)出現(xiàn)CU和CD的信號(hào)上升沿,輸出CV的當(dāng)前計(jì)數(shù)器值將保持不變。
3. 計(jì)數(shù)器值可以不斷遞增,直到達(dá)到輸出CV所指定的數(shù)據(jù)類型的上限。一旦達(dá)到上限,即使出現(xiàn)信號(hào)上升沿,計(jì)數(shù)器值也不再遞增。達(dá)到指定數(shù)據(jù)類型的下限后,計(jì)數(shù)器值將不再遞減。
4. 當(dāng)輸入LD的信號(hào)狀態(tài)變?yōu)楦唠娖剑?ldquo;1”)時(shí),輸出CV的計(jì)數(shù)器值將設(shè)置為參數(shù)PV的值。只要輸入LD的信號(hào)狀態(tài)仍為高電平(“1”),輸入CU和CD的信號(hào)狀態(tài)就不會(huì)影響該指令的執(zhí)行。
5. 當(dāng)輸入R的信號(hào)狀態(tài)變?yōu)楦唠娖剑?ldquo;1”)時(shí),將計(jì)數(shù)器值重置為0。只要輸入R的信號(hào)狀態(tài)仍為高電平(“1”),輸入CU、CD和LD的信號(hào)狀態(tài)的變化將不會(huì)影響"加減計(jì)數(shù)"指令。
6. 如果當(dāng)前計(jì)數(shù)器值大于或等于參數(shù)PV的值,則將輸出QU的信號(hào)狀態(tài)置為高電平(“1”)。在其他情況下,輸出QU的信號(hào)狀態(tài)為低電平。
7. 如果當(dāng)前計(jì)數(shù)器值小于或等于0,則將輸出QD的信號(hào)狀態(tài)置為高電平(“1”)。在其他情況下,輸出QD的信號(hào)狀態(tài)為低電平(“0”)。

ABB GVC750BE101 數(shù)字輸入模塊

1. Use the "add subtract count" command to increase and decrease the counter value of the output CV.

When the signal state of the input CU changes from low level ("0") to high level ("1") (i.e. the rising edge of the signal is triggered), the current counter value will be incremented by 1 and stored in the output CV. When the signal state of the input CD changes from low level ("0") to high level ("1") (i.e. the rising edge of the signal is triggered), the counter value of the output CV will decrease by 1. If both CU and CD signal rising edges occur within one program cycle, the current counter value of the output CV will remain unchanged.

3. The counter value can continuously increase until it reaches the upper limit of the data type specified by the output CV. Once the upper limit is reached, even if there is a rising edge of the signal, the counter value will no longer increase. After reaching the lower limit of the specified data type, the counter value will no longer decrease.

When the signal state of the input LD changes to high level ("1"), the counter value of the output CV will be set to the value of the parameter PV. As long as the signal status of the input LD remains high ("1"), the signal status of the input CU and CD will not affect the execution of the instruction.

When the signal state of input R changes to high level ("1"), reset the counter value to 0. As long as the signal state of the input R remains high ("1"), changes in the signal state of the input CU, CD, and LD will not affect the "add subtract count" instruction.

If the current counter value is greater than or equal to the value of parameter PV, set the signal state of output QU to high level ("1"). In other cases, the signal state of the output QU is low.

If the current counter value is less than or equal to 0, set the signal status of the output QD to high level ("1"). In other cases, the signal state of the output QD is low ("0").


ABB GVC750BE101 數(shù)字輸入模塊 ABB GVC750BE101 數(shù)字輸入模塊

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