DSQC639 ABB 机器人主板 信号传输技术

DSQC639 ABB 机器人主板 信号传输技术

PLC与电气回路的接口，是通过输入输出部分（I/O）完成的。I/O模块集成了PLC的I/O电路，其输入暂存器反映输入信号状态，输出点反映输出锁存器状态。输入模块将电信号变换成数字信号进入PLC系统，输出模块相反。I/O分为开关量输入（DI），开关量输出（DO），模拟量输入（AI），模拟量输出（AO）等模块。

开关量是指只有开和关（或1和0）两种状态的信号，模拟量是指连续变化的量。常用的I/O分类如下：

开关量：按电压水平分，有220VAC、110VAC、24VDC，按隔离方式分，有继电器隔离和晶体管隔离。

模拟量：按信号类型分，有电流型（4-20mA,0-20mA）、电压型（0-10V,0-5V,-10-10V）等，按精度分，有12bit,14bit,16bit等。

除了上述通用IO外，还有特殊IO模块，如热电阻、热电偶、脉冲等模块。

按I/O点数确定模块规格及数量，I/O模块可多可少，但其大数受CPU所能管理的基本配置的能力，即受大的底板或机架槽数限制。

DSQC639 ABB 机器人主板 信号传输技术

The interface between the PLC and the electrical circuit is completed through the input and output part (I/O). I/O module integrates PLC I/O circuit, the input register reflects the input signal state, the output point reflects the output latch state. The input module converts the electrical signal into a digital signal into the PLC system, and the output module is the opposite. I/O is divided into switching input (DI), switching output (DO), analog input (AI), analog output (AO) and other modules.

The switching quantity refers to the signal with only two states of on and off (or 1 and 0), and the analog quantity refers to the quantity that changes continuously. Common I/O categories are as follows:

Switching quantity: according to voltage level, there are 220VAC, 110VAC, 24VDC, according to isolation mode, there are relay isolation and transistor isolation.

Analog: According to the signal type, there are current type (4-20mA,0-20mA), voltage type (0-10V,0-5V,-10-10V), etc., according to the accuracy, there are 12bit,14bit,16bit and so on.

In addition to the above general IO, there are special IO modules, such as thermal resistance, thermocouple, pulse and other modules.

According to the number of I/O points to determine the module specifications and number, I/O modules can be more or less, but the majority of its number is limited by the ability of the basic configuration that the CPU can manage, that is, by the number of large baseboards or rack slots.

DSQC639 ABB 机器人主板 信号传输技术
ABB DCS    ABB CPU模块 DSPC-170 57310001-GL/7 控制板 DSPC170 库存    ABB 83SR04E-E GJR2390200R1211    电源 电子模块
ABB DCS    ABB CPU模块 PM860AK01 控制器单元 3BSE066495R1 PM 860AK01    ABB A GJR5253000R0100    机器人控制系统备件
ABB DCS    ABB DSAI155 热电偶模块 57120001-HZ DSAI-155 输入板    ABB GJR5252711P4    热电阻 电源模块
ABB DCS    ABB DSAI155A 带涂层 热电偶模块 3BSE014162R1 DSAI 155A    Abb GJR5240100R107    IO/DO模块
ABB DCS    ABB DSAO110A 输出模块 57160001-K/3 DSAO-110A PLC板卡    ABB GJR5251300R0101 07KT93D    热电偶 电源模块
ABB DCS    DSDI146 3BSE007949R1 ABB模拟输入单元 31 通道 电源模块    ABB 07KT97F1 GJR5253000R0100    启动器
ABB DCS    DSAX110A ABB模拟输入/输出板 DSAX-110A 3BSE018291R1 I/O模块    ABB GJR5251400R0202 07DC91C    PLC变频器
ABB DCS    ABB DSAX110 I/O模块 57120001-PC 输入输出模块 DSAX-110    ABB XS326A-E GJR2 2946 00    通道数字输入