- 型号:SABO MPB.533.00 PLM500
- 数量:2
- 制造商: 厦门兴锐达自动化设备有限公司
- 有效期:2019/2/1 0:00:00
SABO MPB.533.00 PLM500现货
SABO MPB.533.00 PLM500现货
SABO MPB.533.00 PLM500现货
高可用性:对可用性要求较高的过程,DCS系统可以提供冗余配置(见图2)。
图2:对可用性要求较高的工艺过程,冗余对长期运行至关重要。效率和便于实现冗余,对将费用维持在预算内十分关键
功能需求:某些行业和设施需要历史数据库、流线型的报警管理、以及配置通用用户接口的中央控制室。有些则需要制造执行系统(MES)的集成、先进的控制和资产管理。DCS系统内置这些应用(见图3),使其很容易被添加到自动化工程应用中,而无需增加独立的服务器,也不会增加集成成本。从这方面讲,DCS系统经济性更高,而且可以提高生产力,降低风险。
图3:每种系统平台都具有独特的数据库需求
生命周期投资回报率:设施的需求,因行业而异。对于规模较小的工艺工程,没有扩展需求,也不需要与其它工艺过程区域集成,因此PLC系统具有较好的投资回报率。DCS系统可能具有较高的安装成本,但从全生命周期来看,DCS系统所带来的产量增加和安全效益,会抵消一部分成本。
平衡短期需求与长期愿景,对操作确定性和改善工厂运行、维护非常关键。
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