ICS T8480 模拟输出模块 指驱动硬件输出和相关数据通路

T8480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。T8480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。

T8480

T8480特性补偿后, SP与偏置值相加后分三路: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。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。

T8480

The T8480 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 the 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 local settings, RCASIN, and feedback values through the selector SPSELECTOR. T8480 sets a limiter rate limiter to avoid drastic changes in the set value SP, which limits the rate of the SP. After the limiter clamper limits the absolute value of the SP. It enters a characteristic compensator characterization that is designed according to a special function.

T8480

After T8480 characteristic compensation, the SP and bias values are added and divided into three paths: 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 setting INV through the INCLOSE switch SP% and output to the converter block by transfer. The SP supports a cascade structure, and the CAS method must treat the output of other modules as the SP of the A0 module. The SP has standard rate and absolute value limits.

T8480

PLC内的I/O模板，除一般的DI/DO、AD/DA模板外，还发展了一系列特殊功能的I/O模板，这为PLC用于各行各业打开了出路，如用于条形码识别的ASCII/BASIC模板，用于反馈控制的PID模板，用于运行控制、机械加工的高速计数模板、单轴位置控制模板、双轴位置控制模板、凸轮定位器模板、射频识别接口模板等，这在以后还会有很大发展。另外在输入、输出的相关元件、强干扰场合的输入、输出电隔离、地隔离等方面也会更加完善。

T8480