General Electric WESDAC D20A SBA0009-00
General Electric WESDAC D20A SBA0009-00
General Electric WESDAC D20A SBA0009-00
General Electric WESDAC D20A SBA0009-00
General Electric WESDAC D20A SBA0009-00
General Electric WESDAC D20A SBA0009-00
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WESDAC D20A SBA0009-00

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The D20 Analog module is composed of two detachable modules, WESTERM D20 A and WESDAC D20 A. The top module, WESDAC D20A SBA0009-00 analog input module, processes the data acquired and communicates this to the main D20 processor.
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Technical specifications for WESDAC D20A SBA0009-00

  • Manufacturer:
    General Electric
  • Part Number:
    WESDAC D20A SBA0009-00
  • Product Family:
    GE Mark VIe Distributed I/O
  • Product Type:
    Analog Input Module
  • Stock:
    2
  • Processor:
    8 bit Freescale 68HC11 MPU
  • Overall Accuracy:
    ±0.05% (voltage), ±0.1% (current)
  • Resolution:
    14 bit plus sign
  • Over voltage Rating:
    35 VDC
  • Dielectric Rating:
    1000 VDC
  • Power Requirements:
    20 60 VDC, 7 W typical
  • Maintenance Port:
    9600 baud, RS-232
  • Normal ModeRejection (60 Hz):
    60 dB
  • Weight:
    1.4 kg
  • Estimated shipping dimensions:
    44.2x10.3x4.3cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • 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 Monitoring Certifications Application Scenarios

Features:

  • Supports up to 32 analog input channels with flexible voltage and current configuration via adapter modules.
  • Provides high-resolution 14-bit plus sign conversion with ±0.05% voltage and ±0.1% current accuracy.
  • Built on distributed RTU architecture with dual communication support via DNP3 and D.20 Link protocols.
General Electric WESDAC D20A SBA0009-00 is structured as a distributed analog input solution within the D20 RTU platform, combining field termination and signal processing through WESTERM D20 A and WESDAC D20 A modules. General Electric WESDAC D20A SBA0009-00 collects up to 32 analog inputs from field devices and converts them into digital data for transmission to the main D20 processor. The use of an 8-bit Freescale 68HC11 MPU enables stable onboard processing and efficient data handling. This architecture allows General Electric WESDAC D20A SBA0009-00 to operate close to field equipment while maintaining centralized system communication.

In practical industrial deployment, General Electric WESDAC D20A SBA0009-00 supports multiple input configurations, including voltage ranges of 1 V, 5 V, and 10 V, as well as current inputs processed through shunt resistors. General Electric WESDAC D20A SBA0009-00 also allows each input to be adapted through individual modules, making it suitable for mixed signal environments. A wetting source is provided for current loop inputs, improving compatibility with industrial transmitters. These capabilities enable General Electric WESDAC D20A SBA0009-00 to handle complex monitoring tasks in utility and process control systems.

From a communication and system integration perspective, General Electric WESDAC D20A SBA0009-00 connects to the D20 main processor through the D.20 Link using DB-9 interfaces. The module supports both DNP3 and HDLC protocols, ensuring reliable data transmission in distributed architectures. Maintenance and diagnostics can be performed via a 9600 baud RS-232 port, allowing engineers to access module status and input data in real time. General Electric WESDAC D20A SBA0009-00 is designed for flexible deployment in remote terminal unit systems where reliability and scalable I/O expansion are required.

The WESDAC D20A SBA0009-00 General Electric Analog Input Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
General Electric WESDAC D20A SBA0009-00 Analog Input Module Manuals,Datasheets,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.
General Electric WESDAC D20A SBA0009-00 Analog Input Module Specs

General

  • Manufacturer General Electric
  • Model WESDAC D20A SBA0009-00
  • Condition New Original ready stock
  • Product Family WESDAC D20ME GE-HARRIS 820-0468/00,D20AD,D20AB
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.
  • DC Transmitter Telemetry: Precisely tracks continuous DC signals output by various power transmitters within the substation.
  • High-Frequency Channel Sequential Scan: Utilizes an onboard independent microprocessor to perform high-speed cyclic scanning of all 32 differential channels.
  • Over-Limit Dead Zone Alarm Trigger: Real-time comparison of input values ​​and automatic reporting of over-limit events based on software-defined dead zones.
  • Communication Link Status Monitoring: Real-time monitoring of the communication quality of the D.20 Link internal bus via dedicated status indicator lights.
  • IEEE Power Surge Withstand: Certified to IEEE C37.90.1 standard to ensure extremely strong high-frequency oscillation surge suppression.
  • 1500V High-Voltage Electrical Isolation: Passes the 1500 Vrms channel-to-ground high-voltage dielectric strength test specified by international industrial control standards.
  • Substation EMI Compatibility Specifications: Meets the stringent anti-electrostatic discharge and high-frequency radiation interference criteria for power grid automation equipment.
  • Original Factory Split-Type Quality Calibration: Meets high-precision power telemetry specifications through GE's official factory digital accuracy calibration.
  • High-voltage substation telemetry data acquisition: Deployed in 110kV and above substations to acquire bus voltage and main transformer current.
  • Distribution network SCADA system node: Serves as an input node for distributed RTUs, reporting the operating status of distribution rooms to the master station.
  • Power plant power plant non-electrical quantity monitoring: Connects to pressure and temperature transmitters to monitor parameters of generator auxiliary systems.
  • Classic D20 system online replacement: Used as a standard logic board spare part in in-service power automation systems for seamless replacement.
Description
The D20 Analog module is composed of two detachable modules, WESTERM D20 A and  WESDAC D20A SBA0009-00. The bottom module, WESTERM D20 A, is where all field wirings are terminated, while General Electric WESDAC D20A SBA0009-00 processes the data acquired and communicates this to the main D20 processor. All field, I/O, and power terminations are made on the WESTERM D20 A. This arrangement separates passive and active components, providing a practical structure for distributed analog signal acquisition.

General Electric WESDAC D20A SBA0009-00 can accommodate up to 32 analog inputs on compression type terminations. Through the use of input adapter modules, individual inputs can be configured for voltage or current operation. Voltage ranges currently accepted are 1, 5, or 10 volt full-scale unipolar or bipolar signals. Current inputs are sampled via a shunt resistor, allowing almost any common current range to be accepted. A wetting source is supplied for current loop inputs, and loop voltage for field transducers can be provided either from the module input or from an external source.

Capacitors and varistors are equipped to provide Surge Withstand Capability and impulse protection on all field inputs. Two DB-9 connectors are provided to allow daisy chaining of the D.20 Link, which serves as the communication channel between the main D20 CPU processor, the WESDAC D20 M, and General Electric WESDAC D20A SBA0009-00. Power for the module is also supplied over the same cable assembly and is fused and filtered by passive components located on the WESTERM D20 A. Such an arrangement simplifies installation and minimizes additional wiring requirements.

A single DB-9 connector is provided for the WESMAINT D20 maintenance port. This interface allows communication between a VT100 terminal or emulator and General Electric WESDAC D20A SBA0009-00. Module input data as well as diagnostic information can be viewed over the maintenance port. The address jumper block is located on the WESTERM D20 A, and the jumper setting corresponds to the module address on the D.20 Link. General Electric WESDAC D20A SBA0009-00 is physically mounted and electrically connected to the WESTERM D20 A through three 40-pin connectors, with both modules installed on a 19-inch rack.

The D20 Remote Terminal Unit architecture is based on distributed processing with real-time data acquisition and control software. General Electric WESDAC D20A SBA0009-00 operates as an intelligent module containing an onboard microprocessor and is configured as a slave device to the D20 main processor. The module supports both DNP3 protocol and the high-speed D.20 Link HDLC protocol. I/O modularity minimizes wiring and enclosure requirements, reducing panel space and installation costs. The active/passive design also allows hot-swappable replacement of General Electric WESDAC D20A SBA0009-00 without disturbing wiring connections, significantly simplifying commissioning, troubleshooting, and maintenance activities.
Alternative Names
WESDAC D2OA SBAOOO9-OO WESDAC D20A SBA000900 WESDAC D20ME GE-HARRIS 820-0468/00 D20AD DB25 D20AZ D20AB D20AX
Technical notes
General Electric WESDAC D20A SBA0009-00 Analog Input Module delivers up to 32 configurable analog inputs with 14-bit plus sign resolution, ±0.05% voltage accuracy, 20–60 VDC supply, and 60 dB normal mode rejection at 60 Hz.
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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 analog channels are available with General Electric WESDAC D20A SBA0009-00?
General Electric WESDAC D20A SBA0009-00 supports as many as 32 analog inputs using compression-type terminations.
Can General Electric WESDAC D20A SBA0009-00 accept both voltage and current signals?
Yes. General Electric WESDAC D20A SBA0009-00 supports configurable voltage and current inputs through dedicated adapter modules.
What is the WESDAC D20A SBA0009-00 Power Requirements?
20 60 VDC, 7 W typical.
Does General Electric WESDAC D20A SBA0009-00 provide communication protocol options?
General Electric WESDAC D20A SBA0009-00 supports DNP3 communication and HDLC-based D.20 Link operation for distributed systems.
Which maintenance interface is available on General Electric WESDAC D20A SBA0009-00?
A 9600 baud RS-232 port allows diagnostic access and communication with VT100 terminals or emulators.

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