The CX2500-Mxxx fieldbus master modules are left-sided attachments

for the Embedded PC series CX20xx, CX52x0. CX53x0 and CX56x0.

The use of systems with fieldbus master modules enables the segment

-like construction of control structures in extensive plants and machines

using further fieldbus components (Bus Couplers, Bus Terminal Controllers,

Drive Technology, etc.).

The CX2500-M310 fieldbus master module assumes the function of a

PROFIBUS master. Each module occupies a PCI Express® lane, so that a

total of four modules can be connected in any desired combination to the

left side of a CX20xx group. Compared with the Beckhoff PCIe® Fieldbus

Cards, the technical data of the fieldbus master modules are almost identical,

but with single channels.

The parallel operation of several identical or different masters is possible, e.g.

two PROFIBUS masters or a PROFIBUS master and a CANopen master.

In the case of mixed operation of master and slave connections, CX systems

act as intelligent gateways between different fieldbuses: data are received,

processed and fed into other fieldbuses. Master or slave connections network

several CX systems with one another strictly deterministically via the fieldbus

level. CX fieldbus modules can be retrofitted/exchanged by adding them to

existing CX systems. The scanning and recognizing of the modules, the

parameterization, the configuration of the connected I/O components and

the online diagnostics of the process/fieldbus status take place in the TwinCAT

System Manager.