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No need for a PLC in many tasks
Festo has launched a powerful CoDeSys embedded controller for use with its CPX series of multifunctional control terminals. The new CPX-CEC module provides machine builders with a technically elegant means of overseeing all the units in a CPX terminal - regardless of whether they are for pneumatic or electric drives, or I/O functions - using a fast, easy-to-program controller. Suitable for single and multi-axis applications, the CPX-CEC can operate autonomously or in conjunction with a host controller such as a master PLC, and can also be used as an intelligent slave in fieldbus-based systems, to provide localised signal pre-processing.
The CPX-CEC embedded controller is essentially a PLC in its own right, but with additional functionality. Based on a high performance 400MHz low power consumption
32-bit processor, backed by 64 MB of memory, it features an Ethernet 10/100 Base-T interface for programming and host controller communications, and uses a backplane bus system to communicate with other modules in the CPX terminal. The controller has a cycle time of just 1ms and can be supplied configured as a fieldbus slave or as a CAN master for controlling other CANopen devices, such as electric drives. It supports all popular fieldbus protocols, including PROFIBUS, PROFINET, Ethernet/IP, DeviceNet, Modbus TCP, CANopen, CC-Link and EtherCAT. Motion control programs can be created very quickly and easily on a standard PC, using any of the textual or graphical editors available in the CoDeSys hardware manufacturer-independent IEC 61131-3 programming system, and then downloaded to the CPX-CEC controller's non-volatile memory.
Whereas most CoDeSys controllers are panel-mount or rack-mount designs, the CPX-CEC is a true embedded solution - all component parts are completely enclosed within the module, which carries an IP65/67 rating against dust and water ingress. It provides system designers with a very flexible solution for decentralised control.
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