描述
VMIVME-3113A 模數(shù)轉(zhuǎn)換器
VMIVME-3113A是一款模數(shù)轉(zhuǎn)換器模塊,其設計能夠支持多達64個通道的差分和/或單端寬范圍模擬輸入(正負10 mV至正負10 V)。該模塊具有多種功能和特點,使其在工業(yè)自動化和控制系統(tǒng)等領(lǐng)域具有廣泛的應用。
首先,VMIVME-3113A模塊集成了一個64字雙端口,為連續(xù)掃描設備的所有通道提供存儲。不同的掃描模式在通電、系統(tǒng)重置或在程序控制下手動輸入時自動啟用。雙端口寄存器允許操作員隨時訪問VMEbus以讀取最新存儲的數(shù)據(jù)。這種設計使得數(shù)據(jù)的讀取和存儲變得非常便捷和高效。
其次,VMIVME-3113A模塊的跳線可選可編程增益放大器能夠支持1、10、100、200和高達500的增益范圍。這意味著用戶可以根據(jù)需要調(diào)整增益,以適應不同的輸入信號范圍。此外,該模塊的模數(shù)轉(zhuǎn)換時間為15μs,保證了快速且準確的數(shù)據(jù)轉(zhuǎn)換。
在數(shù)據(jù)讀取方面,VMIVME-3113A模擬輸入被數(shù)字化并存儲在64個雙端口寄存器中,作為一個12位數(shù)字值(D11到Do0),用戶可以讀取??蛇x擇的數(shù)據(jù)代碼是二進制、偏移二進制和二的補碼。符號擴展到上面的4位(D12,D13,D14和D15)。這種設計使得數(shù)據(jù)的讀取和處理變得靈活和方便。
此外,VMIVME-3113A模塊還具有多種操作模式和測試模式,以滿足不同的應用需求。例如,系統(tǒng)復位自動將單板置于自動掃描模式;隨機輪詢模式要求控制程序生成一個單一的轉(zhuǎn)換;隨機中斷模式與隨機PollMode相同,只是轉(zhuǎn)換結(jié)束時產(chǎn)生對cpu的中斷。這些模式使得用戶可以根據(jù)具體的應用場景選擇合適的操作方式。
總的來說,VMIVME-3113A是一款功能強大、性能穩(wěn)定的模數(shù)轉(zhuǎn)換器模塊。它支持多種掃描模式和增益范圍,具有快速的數(shù)據(jù)轉(zhuǎn)換能力和靈活的數(shù)據(jù)讀取方式。這使得它在工業(yè)自動化、控制系統(tǒng)以及其他需要精確模擬信號轉(zhuǎn)換的領(lǐng)域具有廣泛的應用前景。
VMIVME-3113A 模數(shù)轉(zhuǎn)換器
The VMIVME-3113A is an analog-to-digital converter module designed to support up to 64 channels of differential and/or single-ended wide-range analog inputs (plus or minus 10 mV to plus or minus 10 V). The module has a variety of functions and features, making it widely used in industrial automation and control systems.
First, the VMIVME-3113A module integrates a 64-word dual port to provide storage for all channels of the continuous scanning device. Different scanning modes are automatically enabled when powered on, system reset, or manually entered under program control. The dual-port register allows the operator to access the VMEbus at any time to read the latest stored data. This design makes the reading and storage of data very convenient and efficient.
Second, the jumper optional programmable gain amplifier of the VMIVME-3113A module is capable of supporting gain ranges of 1, 10, 100, 200 and up to 500. This means that users can adjust the gain as needed to accommodate different ranges of input signals. In addition, the module’s analog-to-digital conversion time is 15μs, which guarantees fast and accurate data conversion.
In terms of data reading, the VMIVME-3113A analog input is digitized and stored in 64 dual-port registers as a 12-bit digital value (D11 to Do0) that can be read by the user. Alternative data codes are binary, offset binary, and two’s complement. The symbol extends to the above 4 bits (D12, D13, D14, and D15). This design makes the reading and processing of data flexible and convenient.
In addition, the VMIVME-3113A module also has a variety of operating modes and test modes to meet different application requirements. For example, a system reset automatically puts the board in automatic scan mode. Random polling mode requires the controller to generate a single transformation; The random interrupt mode is the same as the random PollMode, except that an interrupt to the cpu is generated at the end of the conversion. These modes enable users to choose the appropriate operation mode according to the specific application scenario.
Overall, the VMIVME-3113A is a powerful and stable ADC module. It supports a variety of scan modes and gain ranges, with fast data conversion capabilities and flexible data reading methods. This makes it promising for a wide range of applications in industrial automation, control systems, and other fields that require accurate analog signal conversion.
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