140CPU67861 SCHNEIDER Unity热备用处理器

系统功能：

1、140CPU67861 PAC控制系统选配集散控制系统（DCS）主要实现工艺装置及公用工程的主要工艺参数的显示、趋势记录、历史事件的记录、报警、控制、打印、制表及流程图画面动态显示等功能。工艺过程的所有常规控制、工艺联锁逻辑控制、时序控制均由DCS完成，当工艺参数越限时，记忆、显示、报警并打印。其他单机成套控制系统通过通讯与DCS连接，联锁保护动作则通过硬接线连接。

2、140CPU67861 DCS系统配置能够满足工艺装置任何工况下的监控要求，具有在线组态、在线修改、在线下装、在线维护等功能。在线是指除被执行任务的组件外，不会影响其他系统组件，仅仅影响被执行任务的回路，并且回路的输出保持在执行任务前最后时刻的状态。

3、140CPU67861 主控制器CPU、I/O模块是带电可插拔型模板，且每块模板都有自诊断功能和监测功能以确保系统的健康状态被报道，保障信号和控制安全，避免任何隐藏的故障。

4、140CPU67861 采用多层次的环境防护能力。EMC防护能力达到III级，并取得CE认证，所有电子部件均适用于G3严重污染的环境。所有模块都具有在线自诊断，具有面板指示灯进行状态提示。可以分析故障位置到I/O通道级；通过维护软件还可观察每个故障的详细信息。所有模块都支持热插拔，允许在线更换故障模块；并可在线增减I/O模块，无需系统重启。

5、在统一的设备管理平台上管理多种现场总线设备。对于任何符合标准现场总线协议的供应商设备，系统都可以将其设备内的参数作为维护信息读取到系统中，从而减少维护费用。

控制系统：

PAC控制系统要求：

将压力控制系统、流量控制系统、液位控制系统、温度控制系统、控制信号接入PAC过程控制系统；四大系统实现独立编程、独立控制、互不影响、实现设备状况协同可控。还实现了设备工厂化、操作实际化、控制网络化、仪表上可以模拟发生(设置)生产中常出现的故障模拟化的实训要求。

可完成以下实训项目：

1、控制流程图，实时监控；

2、在线修改上位机对下位机的运行程序，工艺参数，时间参数，计算参数等；

3、系统组态，搭建网络化软件控制平台；

4、学生由控制台(操作站)通过键盘和鼠标与控制系统进行人机对话；掌握流量、液位、压力、温度、等调节系统及复杂控制系统的组成和组态方法；

5、完成对控制系统故障定位及故障应急处理等，可对过程控制系统装置全过程进行监视、操作；

6、完成PAC自动控制系统的组成与实际应用.

140CPU67261

System functions:

1, 140CPU67861 PAC control system optional distributed control system (DCS) mainly to realize the display of the main process parameters of the process equipment and public works, trend record, historical event record, alarm, control, printing, tabulation and flow chart screen dynamic display functions. All conventional control, process interlocking logic control, timing control of the process are completed by DCS, when the process parameters exceed the limit, memory, display, alarm and print. Other single-machine control systems are connected to DCS through communication, and the interlock protection action is connected through hard wiring.

2. 140CPU67861 DCS system configuration can meet the monitoring requirements under any working condition of the process device, and has functions such as on-line configuration, online modification, online downloading and online maintenance. Online means that, except for the component of the task being executed, no other system components are affected, only the loop of the task being executed is affected, and the output of the loop remains in the state at the last moment before the task is executed.

3. 140CPU67861 Main controller CPU and I/O module are live pluggable templates, and each template has self-diagnosis function and monitoring function to ensure that the health status of the system is reported, ensure signal and control safety, and avoid any hidden faults.

4, 140CPU67861 adopts multi-level environmental protection capabilities. The EMC protection capability reaches Level III and has obtained CE certification. All electronic components are suitable for G3 severely polluted environment. All modules have online self-diagnostics with panel indicators for status alerts. Can analyze the fault location down to the I/O channel level; The maintenance software enables you to view detailed information about each fault. All modules support hot swap, allowing online replacement of faulty modules. I/O modules can be added or deleted online without system restart.

5. Manage a variety of fieldbus devices on a unified device management platform. For any vendor device that complies with the standard fieldbus protocol, the system can read the parameters within its device into the system as maintenance information, thereby reducing maintenance costs.

Control system:

PAC control system requirements:

The pressure control system, flow control system, liquid level control system, temperature control system and control signal are connected to the PAC process control system; Four systems to achieve independent programming, independent control, mutual influence, to achieve collaborative control of equipment conditions. It also realizes the practical training requirements of factory equipment, practical operation, network control, and simulation of faults that often occur in production on the instrument.

Can complete the following practical training projects:

1, control flow chart, real-time monitoring;

2, online modify the upper computer to the lower computer operation program, process parameters, time parameters, calculation parameters, etc.;

3. System configuration, build networked software control platform;

4. Students can communicate with the control system by the console (operation station) through keyboard and mouse; Master the composition and configuration methods of flow, liquid level, pressure, temperature, and other regulation systems and complex control systems;

5, complete the control system fault location and fault emergency treatment, can monitor and operate the whole process control system device;

6. Complete the composition and practical application of PAC automatic control system.