Description
SPSED01 ABB Input/Output Module
SPSED01
ABB Event Sequence Digital Input Module (SOE DI) | Symphony Plus HR Series
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SPSED01 ABB Input/Output Module
■ Belonging system
ABB Symphony Plus Distributed Control System (DCS)
ABB Symphony Plus HR Series (Harmony Rack) I/O Subsystem
Module positioning
SPSED01 is a specialized Sequence of Events (SOE) digital input module in the Symphony Plus system. Its core function is to collect on-site switch/digital signals with millisecond level accuracy and record the precise timestamp of event occurrence. It is not a regular DI module, but a high-precision event recording device with time tags, widely used in scenarios such as power plants and chemical industries that require accident recall and fault analysis.
[Core Function]
⊙ SOE event collection: 16 digital inputs with precise timestamp recording for post mortem analysis of accidents
Optical isolation: All 16 channels are optically isolated and can be individually programmed to adapt to 24 VDC/48 VDC/125 VDC/120 VAC
⊙ Cooperate with SPSET01: Up to 63 SPSED01 can run together with 1 SPSET01 (event sequence timing module) on the same I/O expansion bus segment
Unlike SPSET01, SPSED01 does not process time synchronization link information from SPTKM01 and is only responsible for digital input acquisition
[Technical Specifications]
⊙ Digital input channel: 16 channels, optically isolated
Input voltage options: 24 VDC/48 VDC/125 VDC/120 VAC (channel by channel programmable, 120 VAC for system control logic only)
Processor: 16 bit, 10 MHz
⊙ Memory: 64 KB RAM+64 KB ROM
Power supply:+5 VDC, ± 5%, typical current 350 mA
Working temperature: 0 ° C~+70 ° C
⊙ Size: 35.56 mm (width) x 177.80 mm (height) x 298.45 mm (depth)
Installation method: 19 inch standard rack installation (Harmony rack)
[Associated Model]
SPSET01- SOE Timing module, which processes time synchronization link information and only allows one per bus segment
SPASI23- Analog Input Module (16 Channels)
SPFEC12- Analog Input Module (15 Channels)
SPDSI14- Digital Input Module (14 Channels)
SPDSO14- Digital Output Module (14 Channels)
NFTP01- On site wiring terminal unit
NTAI05/NTAI06- Analog Input Terminal Unit
Typical application scenarios
Review of DCS Accidents in Power Plants: Accurate Timing of Key Events such as Switch Trips and Valve Actions Recorded
Chemical plant safety interlock: Capture the sequence of status changes of each equipment when the interlock is triggered
Any process control scenario that requires SOE resolution (typically 1ms)
⊙ Cooperate with SPSET01 to form a complete SOE acquisition system (SPSET01 is responsible for timing, SPSED01 is responsible for acquisition)
[Precautions for use]
This module is a pure SOE digital input board and cannot replace ordinary DI modules or controllers
When replacing, it is necessary to confirm that the model is completely identical (SPSED01). Different variants result in different channel configurations and cannot be mixed
The SPSED01 itself does not have time synchronization function and must be combined with SPSET01 to achieve complete SOE functionality
Each I/O expansion bus segment can have a maximum of 1 SPSET01 and a maximum of 63 SPSED01, and cannot be overloaded
This model has been discontinued and the market is dominated by inventory and disassembled parts. It is recommended to prioritize confirming the reliability of spare parts sources and verifying the specific system (Symphony Plus HR series) that it is compatible with when purchasing
Installation and commissioning must be carried out by engineers with ABB DCS maintenance qualifications


