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      6DS1220-8AA

      Local Bus Interface
      In Stock
      Ships by Monday, October 26
      Fast Shipping Available

      Product Describe：

      Siemens 6DS1220-8AA is an N8-H local bus interface module for the TELEPERM M CS 275 bus system. It supports AS or OS interconnection on the documented 20 m local bus.

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      Technical specifications Information Technical notes FAQ

      Technical specifications for 6DS1220-8AA

      Technical specifications for 6DS1220-8AA

      • Manufacturer:
        Siemens
      • Product Category:
        DCS System
      • Spare Part Number:
        6DS1220-8AA
      • Estimated shipping dimensions:
        24.3x18.2x3cm
      • Weight:
        0.74 kg
      • Tariff Code:
        8537101190
      • Counliy of origin:
        Germany
      • Designation:
        N8-H
      • System:
        TELEPERM M / CS 275
      • Interface role:
        Local-bus interface module
      • Local-bus distance:
        20 m
      • Maximum earth-potential difference:
        0.2 V between systems
      • Backplane switches when installed:
        S11 and S12 set to ON
      • End connector:
        6DS9200-8AA on the last open cable end
      View as PDF Ask for Quote

      Information

      Information

      Overview Manuals Common Applications Product Precautions
      At the TELEPERM M system boundary, Siemens 6DS1220-8AA works with connection distribution and the specified cable arrangement, so bus length, earth-potential difference and backplane switch state must be controlled.
      • N8-H local-bus interface
      • CS 275 bus system
      • 20 m local-bus segment
      • AS or OS interconnection

      The controlled engineering path is AS or OS system → 6DS1220-8AA N8-H → Connection distribution → CS 275 local-bus participants; preserve the approved system record and verify the intended final response before release.

      Important Notice: Confirm the 20 m bus limit, 0.2 V earth-potential limit, S11/S12 state and final 6DS9200-8AA connector.

      Siemens 6DS1220-8AA Manuals & Downloads
      Siemens 6DS1220-8AA Official Technical Reference Excerpt (PDF)Siemens 6DS1220-8AA Installation & Commissioning Guide (PDF)

      Important Notice: The official Siemens manual documents the applicable TELEPERM M installation context; the ApterPower guide provides a separate exact-model field sequence for preparation, connection checks, functional proving and acceptance.

      Automation-system connection
      Link an AS to the CS 275 local bus.
      Operator-system connection
      Connect an OS through the documented local-bus architecture.
      Redundant bus service
      Support the standard redundant local-bus arrangement.
      N8-H replacement
      Preserve topology, cable order and switch state during maintenance.
      Apply these exact-model controls to Siemens 6DS1220-8AA before isolation, replacement, reconnection, energization and final release.
      1
      Record the full CS 275 topology and participant state before shutdown.
      2
      Match the complete 6DS1220-8AA identity and N8-H designation.
      3
      Keep the local-bus section within 20 m.
      4
      Measure and control earth-potential difference to no more than 0.2 V.
      5
      Set S11 and S12 to ON when the N8-H is installed.
      6
      Reconnect the cable 1:1 by conductor color and ring number.
      7
      Terminate the final open cable end with front connector 6DS9200-8AA.
      8
      Verify communication to every required participant after startup.

      Technical notes

      Technical notes

      For the N8-H installation, keep S11 and S12 ON, preserve 1:1 conductor identification and terminate the last open end with 6DS9200-8AA. Verify all required CS 275 participants after restoration.

      FAQS

      • Which CS 275 local-bus role is assigned to Siemens 6DS1220-8AA?
        It is the TELEPERM M N8-H interface module for the CS 275 local bus.
      • What 20 m local-bus limit applies to Siemens 6DS1220-8AA?
        The Siemens installation manual specifies a 20 m local bus.
      • Which 0.2 V earth-potential limit must be checked for Siemens 6DS1220-8AA?
        The documented maximum is 0.2 V.
      • How must S11 and S12 be set when Siemens 6DS1220-8AA is installed?
        Both backplane switches must be set to ON.
      • Which 6DS9200-8AA connector terminates the last open end for Siemens 6DS1220-8AA?
        Siemens specifies the single front connector 6DS9200-8AA.
      • How is 1:1 conductor continuity preserved when wiring Siemens 6DS1220-8AA?
        The open cable end is connected 1:1 by conductor color and ring number.
      • Which participant and redundancy tests accept Siemens 6DS1220-8AA after replacement?
        Verify all intended participants, local-bus communication and the configured redundancy response.
      Trusted by 5,000+ plants worldwide | Backed by our vast inventory of top-tier control parts, modules and cards, fast shipments are dispatched to cover your urgent needs. ABOUT US >>
      Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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