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1400-PD51A电源监视器
数据区域大小的限制确定所有I/O模块（即不包括电源和CPU模块的模块）提供的数据区域的总大小M。然后检查M的值是否符合数据区域最大大小的限制。数据区M的总大小取决于I/O模块的安装顺序。根据您的应用需求，提前考虑系统配置，包括子单元数量、单元编号和I/O模块的安装位置。z由于数据区域大小的限制定义为M≤ 112+32×（4-n），其中n=CPU模块数。此处的值112和32是由于CPU模块的功能规格而造成的限制。z计算程序按顺序汇总所有I/O模块的数据区域大小，从主机插槽1到第七个子单元插槽16，以确定总大小M。如果有数据区域大小为4、8或16的I/O模块，则将数据区域大小的运行总数四舍五入到最接近的4、8和16的倍数，然后再添加该I/O模块的大小。示例：如果系统配置了以下模块，则总数据区域M为56。如果使用光纤FA总线类型2模块将子单元划分为组，则插槽总数可能会小于上述值，具体取决于此类划分的模式。有关总金额计算的更多信息，请参阅光纤FA总线模块和光纤FAbus 2型模块、FA总线2型模块（IM 34M06H45-01E）。数据区M的总大小取决于模块的安装顺序。如果初始系统配置不符合任何给定限制，请尝试通过串行安装相同数据区域大小的I/O模块来更改模块的安装顺序。此策略可以实现对限制的遵从。
对于顺序CPU模块类型
确定分配给序列CPU模块的I/O模块提供的I/O点的总和R。然后检查R的值是否符合最大I/O点数的限制。分配给CPU模块的I/O模块是指那些实际安装并设置为Configuration（配置）菜单的Use（使用）选项的模块。如果安装了两个或更多CPU模块，请检查每个模块是否符合要求。z当CPU模块为F3SP21 R时≤2048 z当CPU模块为F3SP22/25/28/53/66/71或F3FP36 R时≤4096 z当CPU模块为F3SP35/38/58/59/67/76 R时≤8192另见I/O模块分配的详细信息，请参阅梯形图支持程序M3（IM 34M06Q13-01E）中的FA-M3编程工具WideField3（IM 34 M06Q16-xxE）、FA-M3程序工具WideField 2（IM 36 M06Q15-01E）、FA-M3编程工具WideFild（IM 39 M06Q14-01E）或第6.6节“输入配置项目”。确定I/O模块为分配I/O模块的BASIC CPU模块提供的工作区总数D。然后检查D值是否符合BASIC CPU工作区大小的限制。分配给CPU模块的I/O模块是指那些由BASIC程序中的ASSIGN语句声明其用途的模块。在确定BASIC CPU工作区的总和D时要小心，因为工作区是十六进制的。z当CPU模块为F3BP20或F3BP30 D时≤$2900值$2900受CPU模块的功能规格限制。另请参阅“BASIC CPU modules and YM-BASIC/FA Programming Language”（IM 34M06Q22-01E）中的第B7.3节“I/O模块使用声明”，了解I/O模块分配的详细信息。
Restrictions due to the Size of Data Area
Determine the total size M of the data area provided by all I/O modules (i.e., modules excluding the power supply and CPU modules). Then check that the value of M complies with restrictions placed by the maximum size of data area. The total size of data area M varies depending on the order in which I/O modules are installed. Consider system configuration in advance, including the number of subunits, unit number and I/O modules’ installation locations, according to your application needs. z Restrictions due to the size of data area are defined as M ≤ 112 + 32 × (4 - n), where n = the number of CPU modules. The values 112 and 32 here are the limits due to the function specifications of the CPU modules. z Calculation Procedure Sum up the sizes of data areas in sequence for all I/O modules, starting from slot 1 of the main unit up to slot 16 of the 7th subunit to determine the total size M. If there is any I/O module with a data-area size of 4, 8 or 16, then round up the running total for the data area sizes to the nearest multiple of 4, 8 or 16 before you add the size of that I/O module. Example: If the system is configured with the following modules, the total data area M is 56. If subunits are divided into groups using fiber-optic FA-bus type 2 modules, the total number of slots may become smaller than the value noted above depending on the mode of such division. For more information on the calculation of the total sum, see the Fiber-optic FA-bus Module and Fiber-optic FAbus Type 2 Module, FA-bus Type 2 Module (IM 34M06H45-01E).The total size of data area M varies depending on the order in which modules are installed. If the initial system configuration fails to comply with any given restriction, try changing the order in which modules are installed by serially installing I/O modules of the same data-area size, for example. This strategy may achieve compliance with the restriction.
For Sequence CPU Module Type
Determine the total sum R of I/O points provided by I/O modules allocated to the sequence CPU module. Then check that the value of R complies with restrictions placed by the maximum number of I/O points. The I/O modules allocated to the CPU module refer to those that are actually installed and set to the Use option of the Configuration menu. If two or more CPU modules are installed, check each of them for compliance. z When the CPU module is F3SP21 R≤2048 z When the CPU module is F3SP22/25/28/53/66/71 or F3FP36 R≤4096 z When the CPU module is F3SP35/38/58/59/67/76 R≤8192 SEE ALSO For details on the allocation of I/O modules, see FA-M3 Programming Tool WideField3 (IM 34M06Q16- xxE), FA-M3 Programming Tool WideField2 (IM 34M06Q15-01E), FA-M3 Programming Tool WideField (IM 34M06Q14-01E) or Section 6.6, “Entering Configuration Items,” in the Ladder Diagram Support Program M3 (IM 34M06Q13-01E).Determine the total sum D of work areas provided by I/O modules for the BASIC CPU module to which the I/O modules are allocated. Then check that the value of D complies with restrictions due to the size of the BASIC CPU’s work area. The I/O modules allocated to the CPU module refer to those whose use is declared by the ASSIGN statement in the BASIC program. Be careful when determining the total sum D of the BASIC CPU’s work area since the work areas are in hexadecimal. z When the CPU module is F3BP20 or F3BP30 D≤$2900 The value $2900 is limited by the function specifications of the CPU module. SEE ALSO For details on the allocation of I/O modules, see Section B7.3, “Declaration of Use of I/O Modules” in the “BASIC CPU Modules and YM-BASIC/FA Programming Language” (IM 34M06Q22-01E).
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