Siemens 6ES7331-1KF02-0AB0 12 MONTHS WARRANTY
Description
An S7-300 PLC consists of a central unit (CU) and – if required – one or multiple expansion modules (EMs). The rack containing the CPU is referred to as the central unit (CU). Racks equipped with modules form the expansion modules (EMs) connected to the system's CU.You can use EMs if the number of CU slots is insufficient for your application. When using EMs, you might require further power supply modules in addition to the extra racks and interface modules (IM). When using interface modules you must ensure compatibility of the partner stations.
The I/O bus is a parallel backplane bus designed for the fast interchange of I/O signals. Each rack has an I/O bus. Time-critical operations to access the process data of the signal modules take place via the I/O busThe communication bus (C bus) is a serial backplane bus designed for the fast exchange of large volumes of data parallel to the I/O signals. Except for racks ER1 and ER2, each rack has a communication busThe following figure shows a rack with an I/O bus and a communication bus. The I/O bus connector and communication bus connector can be seen at each slot. When the rack is delivered, these connectors are protected by a cover.
Our Advantage
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About Us
Servo module Parts Limitedfor many years, is a professional engaged in large-scale system (distributed control system, programmable controller, redundant fault-tolerant control systems, robot control system, large servo control system is the central feeding system plastic molding auxiliary equipment and automation of whole plant planning) imported automation system such as spare parts, modules, sales and system integration of high-tech enterprises. The company is equipped with professional technicians to provide customers with better service.
