Siemens 6DD1688-1AB0 Interface Submodule – SIMADYN D / SIMATIC TDC
Siemens 6DD1688-1AB0 is listed for SIMADYN D RFQ review. Confirm quantity, condition and destination before quotation.
Model: 6DD1682-0CC0
Product Overview
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Datasheet Preview
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Commercial Path
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Technical Dossier
Q: How are RFQ terms confirmed?
A: Quantity, required condition, documentation needs, destination and sourcing route are confirmed during RFQ review before quotation.
SIMADYN D was introduced by Siemens in the mid-1980s as the successor to the analog SIMADYN C platform, transitioning industrial drive control from analog signal chains to fully digital, software-configurable control structures. The architecture is organized around a VMEbus-derived backplane (the card rack, 6DD1682-0CC0 and related variants) into which processor cards (PM), input/output modules (EB/AB), and communication adapters (CB/TB) are inserted. Early revisions used the SIMA bus for inter-module communication; later revisions integrated PROFIBUS-DP and SIMOLINK fiber-optic ring bus interfaces to align with evolving plant communication standards. The platform reached its commercial peak in the 1990s and early 2000s, with Siemens officially transitioning new projects to SIMATIC TDC (6DD) and subsequently SINAMICS DCM and S120 platforms. However, the installed base of SIMADYN D remains substantial, and Siemens Industry Services as well as authorized third-party suppliers continue to provide lifecycle extension support. Compatibility between card rack generations is constrained by backplane slot count, bus voltage rails (5 V / ±12 V / 24 V DC), and module form factor (3U / 6U Eurocard). Mixing early-generation PM5 processor cards with later PM6/PM7 variants in the same rack requires verification of firmware and bus arbitration compatibility.
The following SKUs represent verified, commonly stocked modules within the Siemens SIMADYN D (6DD) series. Each entry reflects the module's primary functional classification and application role within a SIMADYN D cabinet.
Card Racks & Subracks
Processor Modules (PM)
Digital Input Modules (DI)
Digital Output Modules (DO)
Analog Input / Output Modules (AI/AO)
Communication & Bus Adapter Modules (CB/TB)
Power Supply Modules (PS)
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