KW3400F 输入输出模块

KW3400F 输入输出模块也称为控制模块，在有控制要求时可以输出信号，或者提供一个开关量信号，使被控设备动作，同时可以接收设备的反馈信号，以向主机报告，是火灾报警联动系统中重要的组成部分。此外，它还可以根据现场的设备要求提供各种控制逻辑，完成对二步降防火卷帘门、水泵、排烟风机等双动作设备的控制。另外，根据输入端电源类型，输入输出模块又可被分为直流输入模块和交流输入模块。在模拟量输入模块中，它能将现场连续变化的模拟量信号如温度、流量、电流、电压等转换成CPU能够处理的若干位数字信号。

而PLC的输入输出模块则包括数字输入DI、数字输出DO、模拟量输入AI和模拟量输出AO等类型。此外，KW3400F 输入输出模块是计算机与外部设备进行通信的桥梁和纽带。它通过接收并处理从键鼠扫描仪等输入设备送来的数据或命令，向CPU发送控制命令和数据。计算机系统中的IO接口主要有键显示打印扫描仪等输入装置和磁盘驱动磁带光盘驱动器等的输出装置。

The KW3400F input and output module, also known as the control module, can output signals or provide a switch signal when there is a control requirement to activate the controlled equipment. At the same time, it can receive feedback signals from the equipment to report to the host. It is an important component of the fire alarm linkage system. In addition, it can also provide various control logics according to the equipment requirements on site, completing the control of dual action equipment such as two-step fire reduction rolling shutter doors, water pumps, smoke exhaust fans, etc. In addition, according to the type of input power supply, the input-output module can be further divided into a DC input module and an AC input module. In the analog input module, it can convert continuously changing analog signals such as temperature, flow rate, current, voltage, etc. on site into several digital signals that the CPU can process.

The input and output modules of PLC include digital input DI, digital output DO, analog input AI, and analog output AO. In addition, the KW3400F input and output module serves as a bridge and link for communication between computers and external devices. It sends control commands and data to the CPU by receiving and processing data or commands sent from input devices such as keyboard and mouse scanners. The IO interfaces in computer systems mainly include input devices such as key display printers and scanners, as well as output devices such as disk driven magnetic tape and optical disc drives.