FOXBORO FBMSVH 驱动模块是用来模拟被测试模块的上一级模块，相当于被测模块的主程序。它接收数据，将相关数据传送给被测模块，启用被测模块，并打印出相应的结果。传统的单元测试包括了驱动模块（driver） 和桩模块（stub）。驱动模块的目的很单纯，就是为了访问类库的属性和方法，来检测类库的功能是否正确。FBMSVH由中央处理器CPU、存储器、输入输出接口和编程器组成。中央处理器CPU是核心，它的作用是接收输入的程序并存储程序。扫描现场的输入状态，执行用户程序，并自诊断，存储器用来存放程序和数据。编程器用于用户程序的编制、编辑、调试、检查和监视，还可以显示PLC的各种状态。
FBMSVH
FOXBORO FBMSVH 驱动模块如果被测试模块中的函数是提供给其他函数调用的，在设计测试用例时就应该设计驱动模块（Driver）。举例来说：驱动模块（Driver）可以通过模拟一系列用户操作行为，比如选择用户界面上的某一个选项或者按下某个按钮等，自动调用被测试模块中的函数。驱动模块（Driver）设置，使对模块的测试不必与用户界面真正交互。FBMSVH输入接口采集现场各种开关接点的信号状态，并将其转化成标准的逻辑电平。 FBMSVH输出接口用于输出电信号来控制对象。
FBMSVH
The FOXBORO FBMSVH driver module is used to simulate the upper level module of the tested module, equivalent to the main program of the tested module. It receives data, transmits relevant data to the tested module, enables the tested module, and prints the corresponding results. Traditional unit testing includes driver modules and stub modules. The purpose of the driver module is very simple, it is to access the properties and methods of the class library to check whether the functionality of the class library is correct. FBMSVH consists of a central processing unit (CPU), memory, input/output interfaces, and a programmer. The central processing unit (CPU) is the core, which receives input programs and stores them. Scan the input status on site, execute user programs, and self diagnose. The memory is used to store programs and data. The programmer is used for programming, editing, debugging, checking, and monitoring user programs, and can also display various states of the PLC
FBMSVH
If the functions in the FOXBORO FBMSVH driver module being tested are provided for other function calls, the driver module should be designed when designing test cases. For example, a driver module can automatically call a function in the tested module by simulating a series of user actions, such as selecting an option on the user interface or pressing a button. Driver module settings prevent the testing of the module from truly interacting with the user interface. The FBMSVH input interface collects the signal states of various switch contacts on site and converts them into standard logic levels. The FBMSVH output interface is used to output electrical signals to control objects.
FBMSVH
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。
FBMSVH
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