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MOXA > 实例探究 > 塑料制造应用的锅炉控制系统

Boiler Control System for Plastic Manufacturing Applications

技术

网络与连接 - 网关

适用行业

塑料

适用功能

流程制造

用例

远程控制

挑战

必须配备工厂自动化应用程序来处理和监控来自附加设备的大量信息。对于塑料制造应用，锅炉控制系统通过收集和调节信息以确保生产的准确和顺畅发挥着至关重要的作用。在这种特殊情况下，客户结合了八个子系统，包括电表、水表、报警输出、显示器和 I/O 状态，由几个具有 Modbus RTU 接口的智能控制器控制。由于距离较远，此应用程序使用 Modbus TCP 协议。系统要求： • Modbus 串行到 Modbus TCP 转换 • 多个从站/主站支持 • 自动 Modbus TCP 响应时间检测

客户

未公开

解决方案

Moxa 的 MGate MB3000 系列是一款串行转以太网 Modbus 网关，被选为其系统。对于此应用，PLC 控制锅炉系统，智能控制器负责从锅炉和子系统中检索信息。当控制服务器（IPC）需要从锅炉获取数据时，带有Modbus RTU接口的智能控制器会从锅炉中获取数据。该命令通过局域网 (LAN) 以 Modbus TCP 数据包格式发送并由 MB3270 接收。 MB3270 将数据包转换为 Modbus RTU 消息，供智能控制器通过 Modbus TCP 发送到远程控制服务器。最后，智能控制器接收到来自工控机的命令，并通过Modbus TCP通讯中继数据。通常，PLC 和智能控制器分别控制和监视信息。这种独特的架构将确保快速检索实时数据，并在主要通信 (PLC) 出现故障时立即发出警报。 Moxa 的 MGate MB3270 具有很高的灵活性。有利于锅炉控制系统的功能包括： • 级联以太网端口，便于接线 • 响应超时自动检测，以定义合适的超时值 • 冗余电源输入可最大限度地降低电源故障时数据丢失的风险。如今，越来越多的锅炉控制系统配备了 Moxa 的 MGate MB3000 系列 Modbus 网关。产品解决方案： MGate MB3170/MGate MB3270 系列 1 和 2 端口高级串行转以太网 Modbus 网关

收集的数据

Alarms For Automated Applications, Power Supply Voltage, Water Meter Readings

运营影响

[Efficiency Improvement - Deployment]
Advanced functions minimize the effort required for implementing a Modbus architecture
[Cost Reduction - Connectivity]
Less Ethernet wiring effort. Cost-effective serial-to-Ethernet Modbus solution that leverages existing utilities and devices.
[Efficiency Improvement - Communication]
Warning relay by output. Multiple masters and slaves to ensure smooth data updates

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