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6DD1662-0AB0

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The 6DD1662-0AB0 CS7 communication support module provides three plug‑in receptacles for SS4/SS5/SS52 modules, 16 Kbytes dual‑port RAM per channel, diagnostic LEDs, and L‑bus connection for serial protocols like DUST, USS, and PROFIBUS.
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Technical specifications for 6DD1662-0AB0

  • Manufacturer:
    Siemens
  • Part Number:
    6DD1662-0AB0
  • Product Family:
    Siemens Simadyn
  • Supported Communication Modules:
    SS4, SS5, SS52
  • Supported Protocols:
    DUST, USS, PROFIBUS (via plugged modules)
  • Plug‑in Receptacles:
    3 (X01, X02, X03)
  • Dual‑Port RAM:
    16 Kbytes per communication module
  • Diagnostic LEDs:
    2 per compartment (H10/H11, H20/H21, H30/H31)
  • Test Sockets:
    1 pair per receptacle (X10/X11, X20/X21, X30/X31) – reset only, test purposes
  • L‑bus Interrupt Generation:
    Possible (only one module configured; not used with SS4/SS5/SS52)
  • Pain Point Solved:
    Solves the need for a standardized carrier that provides dual‑port RAM, diagnostics, and L‑bus connectivity for up to three serial communication modules (SS4/SS5/SS52), enabling DUST, USS, or PROFIBUS protocols without consuming extra CPU slots or complex wiring.
  • Weight:
    0.42 kg
  • Estimated shipping dimensions:
    4x26.2x26.3cm
  • Tariff Code:
    8517795000
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Application Certification Standards Compatibility

Features:

  • Accepts up to three SS4, SS5, or SS52 communication modules in a single slot.
  • Combines Dedicated memory for each module to exchange data with the CPU via L‑bus.
  • Two LEDs per compartment, test sockets, and full L‑bus interface for synchronization and interrupts.
The 6DD1662-0AB0 features three independent plug‑in receptacles (X01, X02, X03), each designed to host an SS4, SS5, or SS52 communication module. This allows a single CS7 carrier to support up to three different serial communication channels simultaneously. For example, one receptacle could run PROFIBUS via an SS52, another handle USS protocol via an SS5, and a third manage DUST – all without consuming additional subrack slots. This dense integration saves valuable backplane space and reduces system cost.

Each communication module plugged into the 6DD1662-0AB0 gets its own dedicated 16 Kbytes of dual‑port RAM. This memory acts as a shared buffer between the communication module and the CPU, allowing high‑speed data transfer via the L‑bus without burdening the CPU with bit‑level serial handling. The CPU can read from or write to this RAM at any time, while the communication module independently updates its contents. This parallel operation eliminates data collisions and reduces latency.

The 6DD1662-0AB0 includes two diagnostic LEDs per compartment (e.g., H10/H11 for receptacle X01). These LEDs give immediate visual feedback on the status of each plugged SS4/SS5/SS52 module – though the exact meaning depends on the module itself. Additionally, the CS7 provides a full L‑bus connection, enabling transfer of the L‑bus basic sampling time for synchronization (even if not used by SS4/SS5/SS52) and the ability to generate L‑bus interrupts.

The 6DD1662-0AB0 Siemens Communication Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

Siemens 6DD1662-0AB0 Communication Module Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Siemens 6DD1662-0AB0 Communication Module Specs

General

  • Manufacturer Siemens
  • Model 6DD1662-0AB0
  • Condition New Original ready stock
  • Product Family 6DD1662-0AB1,6DD1662-0AC0,6DD1662-0AE0
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Heavy Industrial Automation: Widely used in steel mill control systems to handle synchronous data between multiple racks.
  • Power Electronics and Energy: Responsible for transmitting control signals to the monitoring layer in large frequency converters, static var compensators (SVCs), or high-voltage direct current (HVDC) transmission systems.
  • Multi-axis Synchronous Motion Control: Used in papermaking, printing, or textile machinery to coordinate complex movements between multiple drive units.
  • Research and Testing Platforms: Applied to powertrain testing systems requiring ultra-high sampling rates and rapid response.
  • CE Certification: Complies with European safety requirements regarding Electromagnetic Compatibility (EMC) and Low Voltage Directive (LVD).
  • UL/CSA Certification: Complies with North American market standards for fire protection and electrical safety of industrial control equipment.
  • Environmental Immunity: Complies with IEC 61131-2 standards, possessing extremely strong immunity to electromagnetic interference, vibration resistance, and shock resistance, suitable for installation in inverter cabinets with strong electromagnetic interference.
  • Industrial Compliance: Meets "industrial-grade" hardware standards for 24-hour uninterrupted operation, with an extremely high Mean Time Between Failures (MTBF).
  • Rack Compatibility: Designed for 19-inch racks (such as SR12.x, SR24.x) specifically for SIMADYN D, communicating with PM series CPUs via the internal C-bus (Communication Bus).
  • Communication Protocol Support: Primarily supports Siemens' proprietary high-performance communication protocols for high-speed data exchange between racks or with host computers.
  • Software Integration: Requires programming and diagnostics in a STEP 7 environment using the D7-SYS configuration tool. It is fully compatible with CFC (Continuous Function Chart) and offers excellent interoperability.
Description
The 6DD1662-0AB0 is a CS7 support module designed to host communication modules SS4, SS5, or SS52. It features three plug‑in receptacles (X01, X02, X03), each with 16 Kbytes of dual‑port RAM for data exchange between the communication module and the CPU via the L‑bus. 

Each of the three compartments on the 6DD1662-0AB0 includes two diagnostic LEDs (e.g., H10/H11) that display the status of the plugged communication module. The meaning of each LED depends on the specific SS4, SS5, or SS52 module in use. 

The 6DD1662-0AB0 can transfer the L‑bus basic sampling time to the communication module for synchronization, though this function is not utilized by SS4/SS5/SS52. Similarly, clock interrupts for real‑time clock setting are supported but not used with these modules. 

When using the 6DD1662-0AB0, note that an interrupt signal on the L‑bus can be generated from a communication module. However, only one interface module in the system should be configured to perform this function. For SS4, SS5, and SS52, this interrupt capability is not used. 
Alternative Names
6DD1662-0AB1 6DD1662-0AC0 6DD1662-0AE0 6DD1662-0AJ0
Technical notes
The 6DD1662-0AB0 allocates 16 Kbytes of dual‑port RAM per communication module channel, enabling efficient parallel data exchange between SS4, SS5, or SS52 modules and the CPU via the L‑bus without interrupting processor cycles. Diagnostic LEDs are provided per compartment (two per receptacle).
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
How many communication modules can the 6DD1662-0AB0 hold?
The 6DD1662-0AB0 has three plug‑in receptacles (X01–X03), each accepting one SS4, SS5, or SS52 module. All three can be used simultaneously, sharing the L‑bus connection. Each module gets 16 Kbytes of dedicated dual‑port RAM for CPU data exchange.
Which serial protocols work with the 6DD1662-0AB0?
By plugging appropriate SS4, SS5, or SS52 modules into the 6DD1662-0AB0, you can implement DUST, USS, or PROFIBUS protocols. The CS7 itself is a carrier; protocol capability depends on the specific communication module inserted.
What do the two LEDs per compartment on the 6DD1662-0AB0 indicate?
Each compartment has two diagnostic LEDs (e.g., H10/H11). Their meaning depends on the SS4, SS5, or SS52 module plugged in. Refer to that module’s manual. The LEDs help quickly identify communication status, errors, or activity without external tools.
Can I use the test sockets on the 6DD1662-0AB0 during normal operation?
No. The test socket pairs (X10/X11, etc.) are for reset initiation for test purposes only – not for operation. Also, L‑bus interrupt generation is possible but must be configured for only one interface module. With SS4/SS5/SS52, interrupts are not used.

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