Abstract: A processor interconnect network (PIN) for operating a printing press having a plurality of different modules each containing a processor. The PIN has: a control for communicating having a plurality of ports connected to the plurality of processors in the modules of the printing press in a one-to-one correspondence and each of the modules being equivalent to a node in a local area network and having a unique address. In the processor interconnect network the control and the plurality of modules form substantially a star network. Addition modules can be connected to unused available ports of the control without substantial change to opeating the star network.