Your question about Siemens S30810-Q2130-X200 MIP

In the Hicom 300 system the MIP (Memory and Interface Processor) board has the task of controlling the message exchange between the switching unit (SWU) and the service modules (SM). The memory unit of the MIP is set up as a dynamic memory and used as a dual port RAM and as a common memory for the multibus. In duplex mode, the MIP is used as a cross channel (CCH).

2. Interface processor section The interface processor of the board controls the IEC bus controllers and the chip for the serial interface. The two DMA channels of the processor are used for executing the data exchange between the IEC bus and the multibus.
3. Memory section The dynamic memory unit of the board has a memory volume of a maximum of 16 Mbytes. Equipment variants of 2, 8 and 16 Mbytes are possible.

The front panel of the board contains a 7-segment display and a reset key.