ET100E/S30824-Q61-X100-4/W30824-Q0061-C008 SIEMENS Basis unit
Item NO.:
ET100E/S30824-Q61-X100-4/W30824-Q0061-C008 SIEMENSGoods Stock:
3Payment:
T/TProduct Origin:
GermanyColor:
NewShipping Port:
ChinaLead Time:
2-3daysWeight:
0.55KGBrand:
SIEMENSET100E/S30824-Q61-X100-4/W30824-Q0061-C008 SIEMENS Basis unit
Product Description:
The ET 100E system is a decentralized peripheral system that allows for the modular expansion of Siemens S5 and S7 controllers. The specific part number S30824-Q61-X100-4 refers to a bus interface or communication module board within this family. It acts as the "brain" of a remote rack, coordinating data exchange between the local I/O cards and the master programmable logic controller (PLC). The "W" designation in the secondary part number typically signifies a manufacturing-level or internal assembly code used during the production of these high-precision German-engineered boards.
Due to its legacy status, this module operates on older but extremely stable electrical standards. It typically requires a $24 \text{ VDC}$ power supply for the logic circuitry. The communication interface is designed for high-speed serial data transmission, often utilizing specialized Siemens shielded cables to ensure signal integrity over long distances. The board features an array of diagnostic LEDs on the front panel to indicate power status, communication errors, and module health. It is built to the Eurocard physical format, designed to slide into standard Siemens subracks. The unit is optimized for an operating temperature range of $0^\circ\text{C}$ to $60^\circ\text{C}$ under natural convection cooling.
The primary advantage of the ET100E series is its proven reliability. Many of these modules have been in continuous operation for over 30 years in harsh industrial environments without failure. By using this distributed I/O module, engineers significantly reduced wiring costs, as only a single communication cable was needed to reach the remote rack instead of hundreds of individual copper wires. Furthermore, the modular design allowed for hot-swapping certain components and simplified troubleshooting through its localized diagnostic indicators, minimizing downtime in critical production lines.
When handling or installing the W30824-Q0061-C008, it is vital to observe strict Electrostatic Discharge (ESD) precautions, as older semiconductor components on these boards are highly sensitive to static electricity. Users must ensure that the rack power is completely disconnected before inserting or removing the module to avoid "arcing" that could damage the backplane connectors. Additionally, because this is a legacy product, technical support from the original manufacturer may be limited; therefore, it is recommended to keep detailed documentation of jumper settings and dip-switch configurations found on the board, as these define the module’s address and baud rate.
This module is predominantly found in large-scale industrial plants that were modernized or built in the late 1980s and 1990s. Common applications include Automobile Manufacturing, where it managed remote assembly line sensors; Power Generation and Distribution, where it handled signals from distant switchgear; and Steel Mills, where its robust design could withstand high electromagnetic interference. It is also frequently utilized in Water Treatment Facilities to bridge the gap between various pumping stations and a centralized control room. Today, these modules are highly sought after as critical spare parts for maintaining existing legacy systems that have not yet been migrated to Totally Integrated Automation (TIA) portals.
The structure and details of the product:

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Warranty: one year
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JUSTWELL PTE. LTD
Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.
