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    Discontinued / Obsolete by OEM
    For 6SE7090-0XX84-0BC0, Apter Power provides quotations, manuals, and SIMOVERT SCI interface matching.

6SE7090-0XX84-0BC0

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Siemens 6SE7090-0XX84-0BC0 is a SIMOVERT SCB1 serial interface board that links one or two SCI I/O stations by fiber-optic cable.
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Technical specifications for 6SE7090-0XX84-0BC0

  • Manufacturer:
    Siemens
  • Part Number:
    6SE7090-0XX84-0BC0
  • Product Family:
    Siemens SIMOVERT
  • Product Type:
    SIMOVERT SCB1 Serial Communication Board
  • Stock:
    1
  • Board Designation:
    SCB1 Serial Communication Board 1
  • Communication Role:
    Master for SCI1 and SCI2
  • Physical Link:
    Fiber optic
  • Maximum SCI Stations:
    2
  • Maximum Fiber Length:
    10 m
  • SCB1 Slot:
    Slot 2; slot 3 with technology board
  • SCI Supply:
    24 VDC, -17%/+25%, 1 A
  • SCI1 I/O:
    10 DI, 8 DO, 3 AI, 3 AO
  • SCI2 I/O:
    16 DI, 12 DO
  • Configuration Parameters:
    U690–U698
  • Diagnostic Displays:
    n697 and n699
  • Related Fault Range:
    F070–F079
  • Related Alarms:
    A049 and A050
  • SCI Ground Point:
    X80
  • Data Transfer:
    Synchronous master-to-slave exchange
  • Weight:
    2.2 lbs (1 kg)
  • Tariff Code:
    85049090
  • 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 Fiber Layout I/O Expansion Commissioning Link Diagnostics

Features:

  • Acts as the SCB1 communication master for remote SCI1 and SCI2 interfaces.
  • Connects as many as two serial I/O stations over fiber-optic cable.
  • Transfers the two slave data sets synchronously without slave-to-slave traffic.
The SCB1 extends converter I/O beyond the local electronics assembly by placing SCI stations on an isolated optical path.

Each remote station keeps its own bus address and external electronics supply while the master coordinates the communication cycle.

Separate parameter and diagnostic groups support channel setup, live I/O observation, and telegram troubleshooting during start-up.

The Siemens 6SE7090-0XX84-0BC0 SIMOVERT SCB1 Serial Communication Board may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6SE7090-0XX84-0BC0 SIMOVERT SCB1 Serial Communication Board Manuals,Datasheets,LinkImportant 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.

Master and Slave Boundaries

  • Master board: SCB1 exchanges data with the connected SCI stations.
  • Station count: One or two SCI1/SCI2 interfaces may share the master.
  • Cable reach: Each fiber-optic connection is limited to 10 m.
  • Traffic rule: SCI slaves cannot communicate directly with each other.

SCI Channel Capacity

  • SCI1 binary channels: Ten inputs and eight outputs are available.
  • SCI1 analog channels: Three inputs and three outputs extend the converter.
  • SCI2 binary channels: Sixteen inputs and twelve outputs are provided.
  • Analog selection: Each SCI1 channel uses either its voltage or current mode.

Address and Parameter Sequence

  • Board position: Fit SCB1 in slot 2, or slot 3 when a technology board is present.
  • Slave identity: Give every SCI interface a unique address with switch S1.
  • Channel setup: U690–U698 configure analog and binary behavior.
  • Value transfer: Reinitialize the supplementary board after parameter changes.

LED and Display Interpretation

  • SCB1 normal state: A flashing master-board LED indicates operation.
  • No telegrams: A 12 Hz SCI flash points to absent link traffic.
  • Faulty telegrams: A 5 Hz SCI flash identifies disturbed communication.
  • Detailed checks: n697, n699, F070–F079, A049, and A050 support diagnosis.
Description
Built as the communication master for remote serial I/O, Siemens 6SE7090-0XX84-0BC0 is the SCB1 Serial Communication Board used with SCI1 and SCI2 interfaces. Fiber-optic links carry the exchange between the master board and as many as two external SCI stations.

With 6SE7090-0XX84-0BC0, two slaves may be the same SCI type or a mixed SCI1/SCI2 pair. The exchange is master-to-slave only; SCI stations do not pass data directly to each other, and both slave data sets are transferred synchronously.

Commissioning Siemens 6SE7090-0XX84-0BC0 requires the SCB1 in supplementary-board slot 2, or slot 3 when a technology board occupies the assembly. Each SCI receives a unique S1 DIP-switch address, external 24 VDC supply, and a fiber connection before U690–U698 define its analog and binary behavior.

Troubleshooting on 6SE7090-0XX84-0BC0 combines n697/n699 diagnostic displays with board LEDs. SCB1 flashing denotes normal operation, while SCI flash rates distinguish missing telegram traffic, faulty traffic, and normal communication; faults and alarms associated with the link are assigned to F070–F079 and A049/A050.
Alternative Names
Siemens 6SE7090-0XX84-0BC0 6SE7090 0XX84 0BC0 6SE70900XX840BC0 6SE 7090-0XX84-0BC0 6SE7090-0XX84-0BC0 SCB1 SIMOVERT SCB1 6SE7090-0XX84-0BC0 6SE7090-0XX84-0BC0 Serial Interface Board 6SE7090-0XX84-OBC0
Technical notes
For Siemens 6SE7090-0XX84-0BC0, U690–U698 define remote analog and binary I/O behavior, while n697 and n699 provide start-up diagnostics.
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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.
Where should 6SE7090-0XX84-0BC0 be installed when a technology board is already present?
Place Siemens 6SE7090-0XX84-0BC0 in supplementary-board slot 3 when the technology board occupies the assembly; otherwise SCB1 uses slot 2.
Two SCI stations need different addresses; how is this handled with Siemens 6SE7090-0XX84-0BC0?
Assign each SCI slave its own S1 DIP-switch address before starting 6SE7090-0XX84-0BC0; the documented first two stations use address numbers 1 and 2.
Can SCI1 and SCI2 exchange data directly through 6SE7090-0XX84-0BC0?
No. The 6SE7090-0XX84-0BC0 path supports exchanges between the SCB1 master and each SCI slave, not direct traffic between the two SCI stations.
What does a 12 Hz SCI LED flash indicate while checking 6SE7090-0XX84-0BC0?
A 12 Hz flash on an SCI connected to 6SE7090-0XX84-0BC0 indicates no telegram traffic, so the fiber connection and station supply should be checked.
Why do U690–U698 changes not appear at the SCI immediately on 6SE7090-0XX84-0BC0?
After editing the SCI parameters for 6SE7090-0XX84-0BC0, cycle the electronics supply or use the documented U710 initialization command so the supplementary board receives the values.
What cabinet provisions are required for SCI stations connected to 6SE7090-0XX84-0BC0?
SCI1 and SCI2 boards used with 6SE7090-0XX84-0BC0 need a protective enclosure, external filtered 24 VDC supply, short X80 ground lead, and conductive handling surface.

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