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TRICONEX   3503E 数字输入模块 模拟量输出模块又称为D/A模块

品牌:TRICONEX

型号:3503E

名称:数字输入模块

质保:一年
联系电话:180-5988-4797

详细介绍


3503E    数字输入模块

一、 模拟量模块的种类
(1)模拟量输入模块
模拟量输入模块也称为A/D模块,它将从各种工业现场传感器中采集的模拟量信号转换成CPU可以识别接收的数字量。
(2)模拟星输出模块
模拟量输出模块又称为D/A模块,简单来说就是将模拟量输入模块CPU送来的数字量转换成其他外部设备1识别接收的电压或者电流等信息。
(3)数字量模块
数字量模块的主要作用就是检查外部开关输入的状态。数字量输入输出信号开关量信号,1或者0。
二、模拟量模块的作用
1、模拟量输入模块的主要作用是收集模拟信号。收集外部压力传感器后,在模块内部收集压力传感器收集的模拟信号,并进行相应的处理。这里的传感器数据包括电压、电流、热阻、热电偶、温度等模拟值,然后通过总线传输给计算机的智能模块。
2、模拟量输出模块的作用是通过数模转换输入的数字信号进行转换,输出可控制的连续电流和信号。
3、数字量模块:数字量模块有输入输出两种功能。如果不采用这种方法集成,可以节省更多空间,否则用户在使用时需要买两个模块,数字量模块解决了这一问题,即:集成输入/输出功能,一个模块既可以输入信号也可以输出信号

TRICONEX   3503E    数字输入模块    模拟量输出模块又称为D/A模块

The Dual Digital Output (DDO) module receives output signals from the main processor along a single parallel or series path and applies a two out of three voting process to each switch. The switch generates an output signal that is then transmitted to the field termination. The four output circuits on the TMR module provide multiple redundancy for all critical signal paths, while the dual circuits provide sufficient redundancy to ensure safe operation. Dual modules have been optimized for safety critical control programs that are more important than maximum availability at low cost.
The dual digital output module has a voltage loop circuit that can verify the operation of each output switch independently of the presence of the load and determine if there are potential faults. If the detected on-site voltage does not match the command status of the output point, the load/fuse alarm indicator light will be activated.
In addition, continuous diagnosis is performed on each channel and circuit of the dual digital output module. Any diagnostic failure on any channel will activate the fault indicator light, which in turn activates the chassis alarm signal. Dual modules can function normally in the presence of most single faults, and can be used in certain types of multiple faults
Normal operation, but stuck OFF fault is an exception. If one of the output switches experiences a stuck OFF fault, the output will enter the OFF state and burrs may appear during switching to the hot spare module.
The dual digital output module supports the hot spare function and allows for online replacement of faulty modules. Each module adopts mechanical keying to prevent improper installation in the configured chassis.
The dual digital output module requires a separate external termination panel (ETP) with cable interfaces connected to the Tricon backplane. The digital output is designed to provide current to on-site devices, so the on-site power supply must be connected to each output point on the on-site terminal.

TRICONEX   3503E    数字输入模块    模拟量输出模块又称为D/A模块

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