PM864AK01 3BSE018161R1 ABB 处理器单元

Description

处理器单元（PM891除外）由两部分组成：

•处理器单元，PM851/PM851A/PM856/PM856A/PM858/PM860/PM860A/PM861/PM861A/PM862/PM864/PM864A/PM865/PM866/PM866A/PM867，配备电源和CPU板PM865设计用于高完整性控制器。如果是以私人助理的身份运行控制器，其性能将与上述相同在使用HI控制器时会降低。PM867处理器单元适用于高完整性应用。

•基板TP830，带有单元终端板。PM891处理器单元是一个配备电源和CPU板和单元终端。CPU板包含微处理器和RAM存储器。记忆保存固件的可执行版本、控制器系统配置和一个应用程序。处理器单元还具有一个光学模块总线，用于连接其他模块S800 I/O集群和用于插入式备份介质的连接器外壳（安全）用于PM891的数字卡，以及用于其他处理器单元的紧凑闪存卡）

PM864AK01 3BSE018161R1

The processor unit (excluding PM891) consists of two parts:
• Processor unit, PM851/PM851A/PM856/PM856A/PM858/PM860/PM860A/PM861/PM861A/PM862/PM864/PM864A/PM865/PM866/PM866A/PM867, equipped with power and CPU board PM865 designed for high integrity controllers. If the controller is running as a personal assistant, its performance will be the same as above and will decrease when using an HI controller. The PM867 processor unit is suitable for high integrity applications.
Base plate TP830 with unit terminal board. The PM891 processor unit is equipped with a power supply, CPU board, and unit terminal. The CPU board contains a microprocessor and RAM memory. Memory stores the executable version of firmware, controller system configuration, and an application program. The processor unit also has an optical module bus for connecting other modules S800 I/O clusters and a connector housing for plug-in backup media (A
All digital cards for PM891 and compact flash cards for other processor units)