1769-IF8是羅克韋爾公司出產(chǎn)的AB編程模塊。
繼電器的觸點數(shù)量有限，所以電器控制系統(tǒng)的靈活性和可擴(kuò)展性受到很大限制。系統(tǒng)連線少、體積小、功耗小，而且PLC的“軟繼電器”實質(zhì)上是存儲器單元的狀態(tài)，所以“軟繼電器”的觸點數(shù)是無限的，PLC系統(tǒng)的靈活性和可擴(kuò)展性好。
工作方式：PLC的用戶程序是按一定順序循環(huán)執(zhí)行的，所以各軟繼電器都處于周期性循環(huán)掃描接通中，受同一條件制約的各個繼電器的動作次序決定于程序掃描順序，這種工作方式稱為串行工作方式。
如果您還有其他問題，可以咨詢羅克韋爾公司官網(wǎng)。
1769-IF8是一款Compact I/O模塊，由Allen-Bradley制造，與1769
CompactLogix控制器和MicroLogix 1500控制器兼容。
該模塊具有嵌入式八(8)個輸入通道，支持差分和單端接線，可配置信號為0-20mA和4-20mA以及+10VDC、1-5VDC、0-5VDC、0-10VDC，輸入通道接收的模擬信號使用Delta-Sigma轉(zhuǎn)換方法單獨轉(zhuǎn)換，轉(zhuǎn)換后的信號存儲在處理器的內(nèi)存中，單極性占用16位，雙極性占用15位，處理的數(shù)據(jù)可以配置為工程單位、PID比例、百分比范圍和原始數(shù)據(jù)。

1769-IF8

The 1769-IF8 is a Rockwell AB programming module.
The number of relay contacts is limited, so the flexibility and scalability of the electrical control system is greatly limited. The system has fewer connections, small size and small power consumption, and the PLC “soft relay” is essentially the state of the memory unit, so the “soft relay” contacts are unlimited, and the PLC system has good flexibility and scalability.
Working mode: The PLC user program is executed in a certain order, so the soft relays are in a periodic cycle of scanning on, subject to the same conditions of each relay action order determined by the program scanning order, this working mode is called serial working mode.

If you have other questions, please consult the Rockwell website.
The 1769-IF8 is a Compact I/O module manufactured by Allen-Bradley, identical to the 1769
CompactLogix controller is compatible with MicroLogix 1500 controller.
The module has eight (8) embedded input channels, supporting differential and single-ended wiring, configurable signals of 0-20mA and 4-20mA as well as +10VDC, 1-5VDC, 0-5VDC, 0-10VDC, analog signals received by the input channel are converted separately using the Delta-Sigma conversion method. The converted signal is stored in the processor’s memory, unipolar occupies 16 bits, bipolar occupies 15 bits, and the data processed can be configured as engineering units, PID proportions, percentage ranges, and raw data.

1769-IF8