2025年1月1日 · What is a PLC input? PLC inputs can refer to two different things, the first is an external device that is used to give information to the PLC. We also refer to PLC inputs as a physical part of the PLC where terminations are made (I1, I2, I3, etc). The inputs then make the PLC run its program and make decisions on whether to activate or ...

所谓“漏型输入（Sinking Input）”，是指电流经过外部开关，从模块的通道流入到模块内部；再经过内部电路，从公共端流出的接线方式。 在漏型输入中，公共端作为电源负极（共阴极）。

2023年11月19日 · The input module, often referred to as the input card, handles the reception of signals from different sensors or devices linked to the PLC. This can include proximity sensors, switches, temperature sensors, flow meters, and more.

所谓“源型输入（Sourcing Input）”，是指电流从模块的公共端流入，从模块的输入通道流出的接线方式。 源型输入的公共端作为电源正极（共阳极）。 源型输入可以等效为在输入模块外部连接电池，电池的正极连接到模块的公共端，电流从电池的正极流入模块 ...

Input and output signals are a core component of a PLC’s operation. Discrete DC, discrete AC, and analog are among the most common input and output modules, while the relay is also an extremely common form of output module.

2022年11月8日 · In PLC Automation, the knowledge of input devices is a highly important prerequisite. If you have read up to this point, you now have a basic idea of the different input devices that are used in PLC control systems, along with a couple of examples. Certainly, these are not the only devices out there that we can use, as there are a LOT MORE.

2018年12月12日 · PLC I/O is the part of the PLC that connects the brain of the PLC, the CPU, to the outside world, the machines. In a PLC system there will usually be dedicated modules for inputs and dedicated modules for outputs. An input module detects the status of input signals such as push-buttons, switches, temperature sensors, etc..

2025年1月19日 · In this article, we will specifically look at what a PLC input and output is. We will also take a look at the different types of PLC inputs and outputs, where they can be found, and the typical external components that can be used as inputs and outputs.

2024年11月20日 · PLC inputs are made up of input modules that collect data from field input devices and transfer it as voltage (or) current signals to the (CPU) PLC processor. The CPU subsequently processes this information with preprogrammed instructions.

2024年5月12日 · plc编程中的input指的是可编程逻辑控制器（plc）接收的外部信号或数据，通常来源于传感器或人机接口。 在工业自动化中，输入信号是监控与控制过程的关键组成部分，因为它们提供了有关生产线或机械设备状态的实时信息。