ABB 1TGB302003R0003 Communication gateway
Hardware redundancy configuration is an important means to improve the reliability of DCS by configuring critical equipment with redundancy. DCS can usually achieve redundancy configuration for host plugins, power plugins, communication plugins, and network and critical I/O plugins.
Different DCS hardware installations have corresponding regulations on the logical or physical order of installing various plugins in the plugin box. In addition, on-site control units are usually divided into two types: basic type and extended type. The so-called basic type refers to various plugins installed in a plugin box, but more often than not, an expandable structural form is required. That is, a on-site control unit also includes several digital input/output expansion units, which are connected to each other through a bus.
Essentially, the structural form and configuration requirements of the on-site control unit are consistent with the hardware configuration of the modular PLC.
Features:
1、 New structural design: The module adopts a two-piece design mode of terminal block and I/O card, which facilitates on-site wiring and module maintenance in the later stage.
2、 All modules of LICON-DCS are enclosed in fully sealed metal packaging, greatly enhancing the durability of EMC.
3、 High reliability: Each variety of LICON-DCS modules adopts strict isolation and protection measures in signal input and output and data communication input and output. Meanwhile, redundant solutions can be implemented at critical signal points. In addition, all I/O buses are configured with redundancy.
4、 Advanced technology: The LICON-DCS module abandons the 51 series CPU and adopts a high-performance CPU with greater data processing and communication processing capabilities, ensuring fast data processing and true high-speed redundant communication within the CPU.
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