T8480C模拟量输出模块是指驱动硬件输出和相关数据通路,按照运行方式选择当前的设定值,也可根据需 要反向并提供结果给硬件输出或软件输出。模块可以设置为CAS_ IN和RCAS_ IN自动方式。SP经选择器(SPSELECTOR) 对CASIN、SPLOCAL (本机设定)和RCASIN以及反馈值进行选择后输出设定值。T8480C为避免设定值SP的剧烈变化设置了限制器((rate limiter),对SP进行速率限制,再经限位器(clamper)对SP进行绝对值限制后,进入一个按特殊功能做的特性补偿器(characterization) 。T8480C特性补偿后, SP与偏置值相加后分三路:第-路返回SP选择器;第二路进入反向通路输出参数选择器;第三路在转换器中将工程单位转换为百分数,标度参数为PVSCALE (SP%),也可通过开关(INCCLOSE) 输出反向(INVERT SPAN 100 VALUE)设定值(INV.SP%), 并由传送输出给转换器 (块)。
输出的是外部设备可以接收的模拟量。模拟量输出模块是将CPU处理后的二进制数字信号转换为模拟电压或电流,再去控制执行机构。因此,模拟量输出模块又叫D/A转换输出模块。模拟量输出模块是将CPU处理后的二进制数字信号转换为模拟电压或电流,再去控制执行机构。因此,模拟量输出模块又叫D/A转换输出模块。SP支持串联(级)结构,CAS方式必须把其他模块的输出作为A0模块的SP,SP设有标准的速率和绝对值限制
模拟量输入输出模块对其他领域能起到多种采集、控制、显示、远程管理、报警、存储等功能。采集功能主要是对压力、温度、位移等变送器进行采集,采集流量计和脉冲表的流量数据,采集泵或阀门运行状态、设备状态、箱门开关状态。该系统具有支持自动控制、遥控泵、阀等控制设备的功能。显示器有数码管显示,液晶屏可选,支持外置显示器。通过GPRS传输设备,远程管理功能可以设置远程参数和升级程序。报警器的数据限制越大,及时上报报警信息。本机具有存储功能,循环存储监测数据,不丢失电量。
The T8480C analog output module refers to the driving hardware output and related data channels, which can select the current set value according to the operating mode, or reverse and provide results to the hardware output or software output as needed. The module can be set to CAS_ IN and RCAS_ IN automatic mode. SP outputs the set values after selecting CASIN, SPLOCAL, RCASIN, and feedback values through a selector (SPSELECTOR). T8480C sets a rate limiter to avoid drastic changes in the set value SP, which limits the rate of the SP. After the absolute value of the SP is limited by the limiter, it enters a characteristic compensator made according to a special function. After T8480C characteristic compensation, the SP and bias values are added and divided into three paths: the first path returns to the SP selector; The second path enters the reverse path and outputs a parameter selector; The third channel converts engineering units into percentages in the converter, with a scaling parameter of PVSCALE (SP%). It can also output the reverse (INVERT SPAN 100 Value) set value (INV. SP%) through the switch (INCCLOSE), and transmit it to the converter (block).
The output is the analog quantity that external devices can receive. The analog output module converts binary digital signals processed by the CPU into analog voltage or current, and then controls the actuator. Therefore, the analog output module is also known as the D/A conversion output module. The analog output module converts binary digital signals processed by the CPU into analog voltage or current, and then controls the actuator. Therefore, the analog output module is also known as the D/A conversion output module. SP supports a series (stage) structure, and the CAS method must treat the output of other modules as the SP of A0 module. SP has standard rate and absolute value limits
The analog input and output module can perform various functions such as collection, control, display, remote management, alarm, storage, etc. in other fields. The collection function mainly collects pressure, temperature, displacement and other transmitters, collects flow data from flow meters and pulse meters, and collects the operating status of pumps or valves, equipment status, and box door opening and closing status. This system has the function of supporting automatic control, remote control of pumps, valves, and other control devices. The monitor has a digital tube display, an optional LCD screen, and supports external displays. Through GPRS transmission devices, remote management functions can set remote parameters and upgrade programs. The greater the data limit of the alarm, the timely reporting of alarm information. This machine has a storage function that circularly stores monitoring data without losing power.
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