Fieldbus diagnostic module
max. 12 MBaud, IP20 | CX1500-Mxx0 slave BECKHOFF

These connections enable the fieldbus integration of a CX1010/CX1020 system as a slave control that can receive or process data from the master, or send back data from its own process periphery to the master control, either directly or processed. Each slave connection in the CX system contains a DPRAM as an interface between the respective bus system and the CX CPU module. It serves as memory for I/O data and can be addressed by the CPU module via the internal ISA bus. The use of fieldbus slave modules enables the utilisation of a CX system as subordinate distributed control for the configuration of complex or modular systems. Parallel operation of several identical or different slave connections is also possible, e.g. two PROFIBUS slaves or one PROFIBUS slave and one CANopen slave can exist simultaneously within the same system.

Mixed operation of master and slave connections is also possible. A CX system can thus assume the functionality of an intelligent gateway between different fieldbuses, receiving data from a fieldbus, processing them via a program and then feeding them into another fieldbus. The CX fieldbus slave modules are always single channel types. The number of slaves that can be connected is only limited by the respective bus system. The use of master or slave connections enables networking of several CX systems with each other via the fieldbus level. In contrast to networking via Ethernet, strictly deterministic data transmission can be achieved in this case.