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    ABB documents SI06ev as the one-to-one evolution path for the legacy SED01 function.

SED01

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ABB SED01 is a sequence-of-events digital input module for sixteen optically isolated field signals. It captures state changes for time-ordered event analysis in Symphony Plus and legacy Harmony systems.
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Technical specifications for SED01

  • Manufacturer:
    ABB
  • Part Number:
    SED01
  • Product Family:
    ABB Bailey
  • Product Type:
    Sequence of Events Digital Input Module
  • Stock:
    1
  • Product Designation:
    Sequence of Events Digital Input Module
  • Documented Module Code:
    SPSED01
  • Number of Channels:
    16
  • Input Isolation:
    Optically isolated
  • Supported Input Levels:
    24 VDC, 48 VDC, 125 VDC, and 120 VAC
  • Module Power:
    5 VDC ±5% at 350 mA typical
  • Bus Function:
    Expander-bus sequence-of-events input
  • Modules per Segment:
    Up to 63 SPSED01 with one SPSET01
  • Time-Synchronization Link:
    Not included on SPSED01
  • Documented Successor:
    SI06ev one-to-one replacement path
  • Tariff Code:
    8537101190
  • Country of origin:
    Switzerland
  • 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 Applications Monitoring Diagnostics Compatibility

Features:

  • Processes sixteen optically isolated digital inputs for sequence-of-events collection.
  • Supports documented 24 VDC, 48 VDC, 125 VDC, and 120 VAC field arrangements.
  • Uses the expander bus while leaving the time-synchronization-link function to SET01 hardware.
The current product is SED01, the ABB sequence-of-events digital input function documented for the SPSED01 configuration.

It captures discrete state changes and passes event information through the Harmony expander-bus architecture for chronological analysis.

Before replacement, verify the exact code, input voltage, SPSET01 timing relationship, segment population, rack position, and migration requirements.

Availability is subject to Apter Power inventory and sourcing confirmation.

Verified resources for ABB SED01:

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.

  • Captures breaker, trip, alarm, permissive, and equipment-state transitions for chronological event review.
  • Supports root-cause analysis in turbine, boiler, power, and continuous-process protection systems.
  • Maintains legacy Harmony sequence-of-events installations or supports planned migration to the documented SI06ev path.
  • Captures state changes from sixteen discrete field channels for sequence-of-events processing.
  • Distributes event information through the expander-bus arrangement to the system event architecture.
  • Supports reconstruction of equipment trips when field signals and the companion timing source are correctly engineered.
  • Uses optical input isolation to separate field signals from module-side event-processing electronics.
  • Allows missing events to be traced across field voltage, wiring, termination, rack, and expander-bus paths.
  • Requires verification of the voltage-specific input arrangement and SPSET01 timing relationship during troubleshooting.
  • Identifies SPSED01 as the version without the time-synchronization link assigned to SPSET01.
  • Supports up to 63 SPSED01 modules on a documented segment with one SPSET01 timing module.
  • Uses SI06ev as ABB’s documented one-to-one replacement path, subject to project-specific timing and wiring checks.
Description
SED01 is the ABB sequence-of-events digital input function documented for the SPSED01 module configuration with sixteen optically isolated channels.

The product family supports 24 VDC, 48 VDC, 125 VDC, and 120 VAC field arrangements and passes discrete event information through the expander-bus architecture for system event processing.

SPSED01 does not include the time-synchronization link assigned to SPSET01. Verify the exact code, field voltage, timing architecture, expander-bus segment, and wiring before replacement or migration to the documented SI06ev successor.
Alternative Names
SED01 SED 01 SED-01 SPSED01 SPSED 01 ABB SED01 ABB SPSED01 ABB Sequence of Events Digital Input Module
Technical notes
SED01 does not provide the legacy time-synchronization-link processing assigned to SET01; verify the SOE timing architecture before replacement or SI06ev migration.
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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 does SED01 differ from the related SET01 timing module?
SED01 performs sequence-of-events input processing without the time-synchronization link assigned to SET01.
Can an SED01 replacement use any of the documented field-voltage arrangements?
No automatic change should be made; the installed module and termination must match the actual 24 VDC, 48 VDC, 125 VDC, or 120 VAC design.
What is the role of SED01 in event analysis?
It receives discrete state changes and supplies event information for time-ordered sequence-of-events processing.
What must be reviewed on an SED01 expander-bus segment?
Confirm the segment layout, SPSET01 timing relationship, module count, rack assignment, field wiring, and system configuration.
Is SI06ev a documented replacement path for SED01?
Yes. ABB identifies SI06ev as a one-to-one replacement path, but field wiring, timing, and project compatibility still require verification.
What details should accompany an SED01 sourcing request?
Provide the exact SED01 or SPSED01 identification, field voltage, timing architecture, quantity, destination, and migration requirements.