SCHNEIDER   PC-E984-685 可编程控制器 它的逻辑求解速度为每千字2.0毫秒

PC-E984-685  可编程控制器

性能和容量特征

984 可编程控制器型号 984-685 是专为插槽安装而设计的设备。它的逻辑求解速度为每千字2.0毫秒，并配备了16位CPU。用户逻辑大小可以配置为 8K 或 16K。该控制器还具有 4096 个 RAM 状态寄存器和 2048 个混合状态 RAM 离散输入。输入和输出每滴的大 I/O 位数为 512，输入和输出每个系统的大 I/O 位数为 16384。离散 I/O 的总数为 2048，可以是输入和输出的任意组合。

设计

984可编程控制器是专为工业和制造环境中的实时控制而设计的PLC。凭借数字处理功能，它通过输入模块监控现场设备的状态，通过其CPU执行用户定义的逻辑程序，然后通过向其输出模块发送信号来控制现场设备的活动。输入监控、程序执行和输出控制的组合使 984 可编程控制器能够实时执行各种控制任务。

兼容性

984 控制器系列具有出色的兼容性，这是其设计方法的关键优势。无论其计算能力、性能规格或硬件设计如何，所有 984 控制器都共享一致的架构。这可确保定义控制器功能并存储在系统固件执行 PROM 中的 984 指令集包含所有 984 的通用逻辑功能。因此，在 984-685 或 984B 等高性能单元上创建的控制逻辑可以传输到 984-145 等较小的控制器，只要它有足够的内存。此外，在较小控制器上创建的逻辑可以轻松适应较大的单元。随着应用程序的增长，您可以升级控制器硬件，而无需重写现有的控制逻辑。

Modicon 984 可编程控制器组提供多种紧凑型、中型和高性能 CPU。尽管硬件存在差异，但所有 984 控制器都使用统一的处理架构，并使用梯形逻辑（一种类似于继电器符号的图形语言）进行编程。它们还共享一组通用指令，涵盖计算、数据传输、矩阵运算和特殊应用。Modicon提供多种组网选项，可实现多个控制器与其他设备之间的互连，以增强应用中的控制和数据交换。

984 控制器的设计方法支持基于控制器功能做出决策，例如编程应用的离散和模拟/寄存器点的数量、支持的 I/O 丢弃数量以及效率（由处理逻辑和更新 I/O 模块的速度以及对环境因素的抵抗力表示）。

Performance and capacity characteristics
The 984 programmable controller models 984-685 are devices designed specifically for slot installation. It has a logic solving speed of 2.0 milliseconds per thousand words and is equipped with a 16 bit CPU. The user logic size can be configured as 8K or 16K. The controller also has 4096 RAM status registers and 2048 mixed state RAM discrete inputs. The maximum number of I/O bits per drop for input and output is 512, and the maximum number of I/O bits per system for input and output is 16384. The total number of discrete I/Os is 2048, which can be any combination of input and output.
design
The 984 programmable controller is a PLC designed specifically for real-time control in industrial and manufacturing environments. With its digital processing function, it monitors the status of on-site devices through input modules, executes user-defined logic programs through its CPU, and then controls the activity of on-site devices by sending signals to its output modules. The combination of input monitoring, program execution, and output control enables the 984 programmable controller to perform various control tasks in real-time.
compatibility
The 984 controller series has excellent compatibility, which is a key advantage of its design method. Regardless of its computing power, performance specifications, or hardware design, all 984 controllers share a consistent architecture. This ensures that the 984 instruction set that defines the controller functions and stores them in the system firmware execution PROM contains all the common logical functions of the 984. Therefore, control logic created on high-performance units such as 984-685 or 984B can be transferred to smaller controllers such as 984-145, as long as it has sufficient memory. In addition, logic created on smaller controllers can easily adapt to larger units. As the application grows, you can upgrade the controller hardware without rewriting existing control logic.
The Modicon 984 programmable controller group provides a variety of compact, medium, and high-performance CPUs. Despite hardware differences, all 984 controllers use a unified processing architecture and are programmed using trapezoidal logic (a graphical language similar to relay symbols). They also share a set of general instructions covering computation, data transmission, matrix operations, and special applications. Modicon provides multiple networking options to interconnect multiple controllers with other devices to enhance control and data exchange in applications.
The design method of the 984 controller supports decision-making based on controller functionality, such as the number of discrete and analog/register points for programming applications, the number of I/O drops supported, and efficiency (represented by the speed of processing logic and updating I/O modules, as well as resistance to environmental factors).