Technical Specifications
| Parameter Name | Value |
|---|---|
| Product Model | 6DD1688-0AE2 (SS52) |
| Manufacturer | Siemens |
| Product Type | Communication Submodule |
| System Compatibility | SIMADYN D (PM3/PM4/PM5/PM6 processors) |
| Backplane Interface | CS7 support module, 48-pin plug connector X1 |
| Communication Protocol | SINEC L2 DP / PROFIBUS DP (DP-V0 class) |
| Interface Type | RS485, electrically isolated (floating) |
| Physical Connector | 9-pin sub-D socket (X5) |
| Data Transfer Memory | 16 kbyte dual-port RAM (on CS7 support module) |
| Max Modules per CS7 | Up to 3 communication modules |
| Power Supply | +5 V, +15 V, -15 V via CS7 backplane |
| Weight | Approx. 0.183 kg |
| Lifecycle Status | Discontinued / Deleted without replacement (Oct 1, 2017) |
Main Features and Advantages
PROFIBUS DP Master/Slave Capability: The Siemens 6DD1688-0AE2 SS52 is configurable as either a master or slave interface on the SINEC L2 DP bus. This flexibility allows system integrators to deploy the module in various network topologies, from simple point-to-point connections to complex multi-master configurations. The module supports the SYNC and FREEZE functions inherent to PROFIBUS DP-V0 class operation, enabling synchronized data acquisition and output across multiple slave devices.
Seamless SIMADYN D Integration: Engineered specifically for the SIMADYN D platform, the Siemens 6DD1688-0AE2 integrates directly into the CS7 communication slot within the processor rack. The 16 kbyte dual-port RAM on the CS7 support module provides a high-speed data exchange pathway to the PM5 or PM6 CPU modules, minimizing communication overhead and ensuring deterministic response times critical for real-time drive and motion control applications. The module’s physical connection to the support board via the 48-pin plug connector X1 carries the data, address, and control buses along with module power supplies.
Diagnostic and Maintenance Features: The Siemens 6DD1688-0AE2 includes built-in diagnostic capabilities to facilitate troubleshooting and system validation. The CS7 support module provides a double test socket and a double LED indicator for each slot, with the LEDs indicating operational status or fault conditions. Additionally, a local reset can be initiated by short-circuiting the two test sockets at the processor, allowing for targeted software testing and fault finding without affecting the rest of the subrack. The RS232 interface available on connector X5 supports parameterization and diagnostics using COM PROFIBUS software.
Robust Industrial Design: Built for harsh industrial environments, the Siemens 6DD1688-0AE2 features an electrically isolated RS485 interface that protects against ground loops and electrical noise commonly encountered in drive cabinets and power conversion systems. Its proven track record in steel mills, paper machines, and marine propulsion systems attests to its reliability under continuous operation in demanding thermal and electromagnetic conditions.
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