IS200STCIH4A备件模块
下图屏幕显示了两个加法功能块。示例功能块对于更复杂的功能块，ZOOM功能将打开指令窗口。GFT-177A第5节配置和编程GMR系统5-5 5程序块程序块可用于组织程序段。在主程序块中最多可以声明255个程序块。程序块可以单独“锁定”。这有助于软件安全，同时允许访问所需的功能，如特定计时器、计数器和其他数据。程序块声明每个程序块可以基于时间、扫描或逻辑前提条件从主GMR应用程序块执行。可以从程序块内调用其他子程序块。对于安全相关的应用程序逻辑，程序块的嵌套通常限于两层。在程序的非关键部分，最多可以有八个嵌套层。参数化子程序块参数化子程序是一个用户可定义的功能块，最多有七个输入/输出参数对。参数化子程序块允许在同一GMR程序中重新使用逻辑，这简化了编程并减少了逻辑的总量。一个参数化子程序块可以有多达16K字节的逻辑，以及多达1000个本地昵称和描述。参数化子程序块编程语言GMR应用程序的主要部分是在熟悉的继电器梯形逻辑中创建的。其他程序块可以在继电器梯形逻辑或“C”中。“C”中的程序块在外部创建并导入主继电器梯形逻辑程序。可以在GE Fanuc提供的：C MegaBASIC Toolkit中添加和编程协处理模块。继电器梯形逻辑以外的编程语言仅限于程序的非关键部分。非安全功能的逻辑必须在单独的程序块中。定时中断定时中断功能使中断声明编辑器能够指定程序块（包括外部块）的定时执行。可以为16个定时中断中的每一个选择1.0、0.10、0.01或0.001秒的时基。下面的示例屏幕显示了程序逻辑中的各种类型的中断。定时中断调用程序块时间/日期时钟可以设置为与分布式控制系统、编程器PC CPU和其他设备同步。它是电池供电的。5-6 Genius®模块冗余灵活三模块冗余（TMR）GFT-177A系统技术产品概述–1998年2月5程序注释GMR应用程序中的每个联系人或数据变量都有一个1到7个字符的昵称（例如，标签号等）。每个引用可以有一个4行乘7个字符“标签”。可以在程序中输入昵称和标签，从剪切/粘贴实用程序（如Windows中的）导入，或通过Logicmaster变量声明表输入，如下所示。可以添加示例变量声明表横档注释（扩展文本文档）来描述各个横档中包含的逻辑。程序注释显示可以选择性地关闭或打开，如下面两个示例屏幕所示。带有部分注释的逻辑显示带有更多注释程序搜索的逻辑显示搜索功能将快速查找程序中任何位置的标识符名称和/或参考地址、和/或昵称和/或指令。示例搜索屏幕GFT-177A第5节配置和编程GMR系统5-7 5程序诊断GMR系统通过将标准Genius诊断与GMR软件的特殊自动测试和差异报告功能相结合，提供了广泛的诊断功能。故障表每个PLC在两个详细的故障表中提供完整的故障表和程序访问故障和状态信息。
The illustration screen below shows two Addition function blocks. Example Function Block For more complex function blocks, a ZOOM feature opens a window on the instruction. GFT-177A Section 5 Configuring & Programming a GMR System 5-5 5 Program Blocks Program blocks can be used to organize program sections. Up to 255 program blocks can be declared in the main program block. Program blocks may be individually “Locked”. That aids software security while allowing access to required functions such as specific timers, counters, and other data. Program Block Declarations Each program block may be executed from the main GMR application program block based upon time, scan, or logical pre-conditions. Additional subprogram blocks can be called from within program blocks. Nesting of program blocks is generally limited to two layers for safety-related application logic. In non-critical portions of the program, there can be up to eight nested layers. Parameterized Subroutine Blocks A parameterized subroutine block is a user–definable function block with up to seven input/output parameter pairs. A parameterized subroutine block allows the re– use of logic within the same GMR program, which simplifies programming and reduces the overall amount of logic. A parameterized subroutine block can have up to 16K bytes of logic with up to 1000 local nicknames and descriptions. Parameterized Subroutine Block Programming Languages The main part of the GMR application program is created in familiar Relay Ladder Logic. Additional program blocks can be in Relay Ladder Logic or in ‘C’. Program Blocks in ‘C’ are created externally and imported into the main Relay Ladder Logic program. Coprocessing modules may be added and programmed in: C MegaBASIC Toolkit provided by GE Fanuc. Programming languages other than Relay Ladder Logic are restricted to non-critical portions of the program. Logic for non-safety functions must be in separate program block(s). Timed Interrupts The timed interrupt feature enables the interrupt declaration editor to specify timed execution of program blocks (including external blocks). A time base of 1.0, 0.10, 0.01, or 0.001 seconds may be selected for each of the 16 timed interrupts. The following example screen shows various types of interrupts in the program logic. Timed Interrupts Calling Program Blocks Time of Day/Date Clock A time of day clock can be set to synchronize with Distributed Control Systems, the programmer PC CPU, and other devices. It is battery-backed. 5-6 Genius® Modular Redundancy Flexible Triple Modular Redundant (TMR) GFT-177A System Technical Product Overview – February 1998 5 Program Annotation Each contact or data variable in the GMR application program is given a 1 to 7 character nickname, (e.g. tag number, etc.). Each reference can have a four line by 7 character ‘label’. The nickname and label can be entered in the program, imported from a cut / paste utility (such as found in Windows), or through the Logicmaster Variable Declaration table, illustrated below. Example Variable Declaration Table Rung comments (expanded text documentation) may be added to describe the logic contained within individual rungs. Program annotation display can be selectively turned off or on, as shown in the next two example screens. Logic Display with Partial Annotation Logic Display with More Annotation Program Searches The Search function will quickly find an identifier name, and/or a reference address, and/or a nickname, and/or an instruction anywhere in the program. Example Search Screen GFT-177A Section 5 Configuring & Programming a GMR System 5-7 5 Program Diagnostics The GMR system provides extensive diagnostic capabilities by combining standard Genius diagnostics with the special autotesting and discrepancy reporting features of the GMR software. Fault Tables Each PLC provides a full range of fault table and program access to fault and status information in two detailed Fault Tables.
