6DD1688-0AE2
On a SIMADYN D CS7 carrier, Siemens 6DD1688-0AE2 provides the SS52 PROFIBUS-DP master/slave and MPI communication path from its assigned receptacle.
Process data for 6DD1688-0AE2 passes between the communication function and the CPU through the CS7 dual-port RAM, including configured SYNC, FREEZE, and shared-input behavior.
Connector X5 on 6DD1688-0AE2 combines isolated RS485 communication, an isolated 5 V optical-link supply, and an RS232 diagnostic path. Receptacle LEDs report operating, initialization, bus, and fault states.