DO802 数字输出模块

DO802 数字输出模块

输出类型与数量：该模块为数字输出，具备8个通道的输出数量。

输出电流/电压：具体输出电流或电压值依赖于模块的具体型号，通常输出电流可以是5A或10A。

输出形式：DO802模块的输出形式可以配置为源型或漏型。

工作温度范围：其工作温度范围从-25°C至+70°C，适用于大多数工业环境。

防护等级与尺寸：通常防护等级为IP20，而具体尺寸则取决于具体型号和安装方式。

隔离：在DO802模块中，输出与输入之间通常具有电气隔离，这有助于增强系统的稳定性和安全性。

触发脉冲与接口电路：当使用方给出的触发脉冲是TTL电平的信号时，应在输入隔离变压器前增加接口电路。此接口电路的目的是预放大TTL脉冲信号，并使其与隔离变压器匹配。

DO802模块被广泛应用于工业自动化领域，用于控制执行器、电机、阀门等设备的开关状态，以及在工艺流程中控制设备的输出。适用于楼宇自动化领域，如控制照明、空调和安全系统等。

DO802 digital output module

Output type and quantity: The module is a digital output, with the output quantity of 8 channels.

Output current/voltage: The specific output current or voltage value depends on the specific model of the module, usually the output current can be 5A or 10A.

Output form: The output form of DO802 module can be configured as source type or drain type.

Operating temperature range: Its operating temperature ranges from -25°C to +70°C, suitable for most industrial environments.

Protection level and size: Usually the protection level is IP20, and the specific size depends on the specific model and installation method.

Isolation: In DO802 modules, there is usually electrical isolation between the output and the input, which helps to enhance the stability and safety of the system.

Trigger pulse and interface circuit: When the trigger pulse given by the user is a TTL level signal, the interface circuit should be added before the input isolation transformer. 

The purpose of this interface circuit is to pre-amplify the TTL pulse signal and match it with the isolation transformer.

The DO802 module is widely used in the field of industrial automation to control the switching state of actuators, motors, valves and other equipment, as well as to control the 

output of equipment in the process flow. It is suitable for building automation, such as controlling lighting, air conditioning and security systems.