PART NUMBER SEARCH
AMIKONG EXCESS CONTROL SYSTEM PARTS
Specializing In:Automation Spares(DCS, PLC, CNC) Servo Drives HMI Power supplies Controllers
-
Please try to be as accurate as possible with your search.
-
We can quote you on 1000s of specialist parts, even if they are not listed on our website.
-
We can't find any results for “”.
SEE PRODUCTS IN SEARCH PAGE ()
- Home
- ALL MANUFACTURERS
- Siemens
- Siemens Simatic S7
- S7-300
- C79459-A1715-B21
In Stock
Fast Shipping Available
· Product image is representative; revision or series may vary. Contact us to request a specific version.
- Customs & Documentation
- We prepare clear, order-specific documentation for every international shipment, including the commercial invoice, packing list and available product or compliance documents. Before dispatch, our logistics team confirms the consignee details, declared value, shipping terms and destination requirements with you. Tracking information is provided after shipment, helping your team prepare for import clearance with confidence.
Documents checked before dispatch · Shipment details confirmed · Global tracking provided
- Payment
- Payment is by bank wire only in RMB/CNY, GBP, EUR or USD. Amikon does not accept credit cards or provide credit terms. Cleared payment is required before shipment unless the written quotation expressly states otherwise.
- Product Condition
- Factory New These are new and current items that are procured directly from the manufacturer.
New In Sealed Package Parts are new. They have not been used and still have their original package seal intact.
New in Original Package These parts are new. The packages were not originally sealed by their original manufacturer.
-
20+
years in automation -
ISO 9001
certified quality system -
12 months
amikon warranty -
2-hour reply
from your account manager -
Success Story
solutions in action
-
Please try to be as accurate as possible with your search.
-
We can quote you on 1000s of specialist parts, even if they are not listed on our website.
-
We can't find any results for “”.
SEE PRODUCTS IN SEARCH PAGE ()
PRODUCT DESCRIPTION
C79459-A1715-B21 Loadable-driver Hardware Dongle
Siemens C79459-A1715-B21 is a hardware dongle used with the applicable SIMATIC loadable communications-driver arrangement. It identifies the B21 hardware authorization key, which is fitted in the communications processor submodule slot. The driver software and the hardware key are separate elements of the configured serial interface.
Siemens explicitly distinguishes the B21 key from the C79459-A1715-B22 Data Highway dongle. Drivers that use the B21 key can be used with the Data Highway dongle, but the reverse authorization does not apply: the B21 dongle does not permit Data Highway operation. The key must therefore be matched to the actual driver and communications processor.
Siemens explicitly distinguishes the B21 key from the C79459-A1715-B22 Data Highway dongle. Drivers that use the B21 key can be used with the Data Highway dongle, but the reverse authorization does not apply: the B21 dongle does not permit Data Highway operation. The key must therefore be matched to the actual driver and communications processor.
BEFORE YOU BUY
Confirm the complete C79459-A1715-B21 identity
ACTUAL APPLICATIONS
Application fields for C79459-A1715-B21
These broad application fields reflect the documented function and technical characteristics of C79459-A1715-B21.
-
01 · POWER GENERATION
Renewable Power and Conventional Electricity
Renewable power and conventional electricity generationIndustrial energy integration and hydroelectric generation -
02 · METALS
Metallurgy and Industrial Metal Recycling
Metallurgy and conventional industrial metal recyclingMining and conventional industrial electricity generation -
03 · WATER & WASTEWATER
Municipal Water Treatment and Water Reuse
Industrial water reuse and municipal water treatmentWastewater reclamation and industrial water treatment
Technical specifications for C79459-A1715-B21
-
Product ModelC79459-A1715-B21
-
Product ParametersLoadable-driver Hardware Dongle
-
In stock1 unit
-
ManufacturerSiemens
-
Hardware key designationB21
-
Driver authorization formHardware dongle
-
Insertion locationRear CP submodule slot above backplane connector
-
Data Highway driver authorizationNot provided by the B21 dongle
View all additional
Alternative Names
C79459-A1715-B21
SIMATIC Serial Communications
Loadable-driver Hardware Dongle
SYSTEM & REPLACEMENT CHECK
Information needed before ordering
Three direct checks to secure your system integration and minimize ordering risks.
Information
System integration
Replacement check
Manuals & support
SYSTEM INTEGRATION
Integrate C79459-A1715-B21 within SIMATIC Serial Communications
Identify the communications processor and installed loadable driver before selecting the B21 key. Match the driver package documentation to the hardware authorization it requires. Do not infer that a key for another protocol provides the same authorization merely because it fits the same submodule location.
The Siemens instructions place the dongle in the submodule slot on the rear of the communications processor above the backplane connector. Access requires removing the processor from the rack under the applicable isolation procedure. Follow the processor instructions and electrostatic precautions when handling the key and its socket.
Restore the intended loadable driver and its interface parameters through the supported engineering procedure, then verify communication with the configured peer. The B21 key does not authorize Data Highway; a project that needs that driver requires the specified B22 arrangement. Keep the software and key identities in the station record.
Features:
- Hardware key designation: B21
- Driver authorization form: Hardware dongle
- SIMATIC Serial Communications
Use C79459-A1715-B21 only within the documented SIMATIC Serial Communications arrangement and applicable installation instructions.
INTERCHANGEABILITY
Replace C79459-A1715-B21 within SIMATIC Serial Communications
Record the complete B21 key marking, communications processor article number and driver package before replacement. Save the serial-interface parameters and engineering files. The B21 and B22 designations have different authorization scope and must remain explicit in both the maintenance record and spare-parts request.
Remove the communications processor only after applying the station isolation procedure. Inspect the rear submodule slot and retain the correct dongle orientation. Handle the key as an electronic submodule and avoid changing the processor or driver configuration simply to accommodate an unmatched hardware key.
After reassembly, reload or restore the driver through its documented method and check the interface diagnostics. Confirm communication with the intended peer and verify that the installed key matches the driver requirement. Retain any separately supplied software license and installation media as part of the documented delivery scope.
Features:
- C79459-A1715-B21 complete order code
- Data Highway driver authorization: Not provided by the B21 dongle
- Retain the documented SIMATIC Serial Communications connection arrangement
Use C79459-A1715-B21 only within the documented SIMATIC Serial Communications arrangement and applicable installation instructions.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: The linked files are Amikong-hosted reference documents. Match their product identity and scope to the supplied assembly, and consult the applicable manufacturer instructions before use. Accessories and additional documents are included only when expressly listed in the quotation.
Features:
- Exact-model technical data for C79459-A1715-B21
- Document applicability checked against the complete identity
- Directory links by subcategory and brand
Documentation for C79459-A1715-B21 must match the installed product identity and supplied configuration.
Also searched as
Important notice
Manuals, software, firmware, cables, calibration data and accessories are included only when listed in the quotation. AMIKON is an independent supplier and is not affiliated with or authorised by the manufacturer.
This content has been produced using multiple sources. Takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
BUYER INFORMATION
Commercial terms without hidden steps
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
-
01
Shipping & delivery
-
DispatchEligible stock: same / next day
-
CarriersDHL, FedEx or UPS
-
Ship fromXiamen, China
-
Product size0.70 x 4.40 x 5.60 cm
-
Net weight0.02 kg
-
-
02
Payment & customs
-
PaymentBank transfer (T/T)
-
CurrenciesUSD · EUR · GBP · RMB
-
Credit cardsNot accepted
-
HS reference8538900000
-
OriginGermany
-
-
03
Warranty & returns
-
Warranty12 months from AMIKON
-
InspectionLabel, condition and packing checks
-
ReturnsPrior RMA authorisation required
-
CompatibilityConfirm before order
-
OEM warrantyDoes not apply
-
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
-
Part checked
Full suffix recorded -
Condition checked
Label and appearance -
Packing checked
Antistatic protection -
Tracking supplied
Established couriers -
Sandy Lin
Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about C79459-A1715-B21
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
-
Is C79459-A1715-B21 a complete serial communications processor?
No. C79459-A1715-B21 is the B21 hardware dongle for an applicable loadable-driver arrangement. -
Does C79459-A1715-B21 authorize Data Highway?
No. Siemens explicitly states that C79459-A1715-B21 does not permit Data Highway operation. -
Can the B22 Data Highway dongle cover drivers that require C79459-A1715-B21?
The cited Siemens instructions state that the B22 dongle can also be used with drivers requiring C79459-A1715-B21; this does not make the reverse substitution valid. -
Where is C79459-A1715-B21 inserted?
C79459-A1715-B21 is fitted in the rear communications-processor submodule slot above the backplane connector. -
Does fitting C79459-A1715-B21 install the driver software?
No. C79459-A1715-B21 is a hardware authorization key; the applicable driver software must also be loaded and configured. -
What should be checked before replacing C79459-A1715-B21?
For C79459-A1715-B21, identify the processor and driver package and preserve the interface parameters before removing the processor. -
What should an C79459-A1715-B21 distributor quotation state?
State the exact C79459-A1715-B21 B21 marking and list the driver software or media separately from the hardware key. -
What information helps a distributor match C79459-A1715-B21?
Provide a photograph of C79459-A1715-B21 and the processor article number and driver package so the required authorization scope is clear.
READY TO VERIFY YOUR PART?
Get a C79459-A1715-B21 quote with price, lead time and revision check.
Trusted by 5,000+ plants worldwide | Backed by our vast inventory of top-tier control parts, drives and servo motors, fast shipments are dispatched to cover your urgent needs. ABOUT US >>
Disclaimer: Amikon Limited sells new and surplus products and develops channels for purchasing such products. Amikon Limited is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Amikon Limited is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. Amikon Limited is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.
Product
Product Browsing History
-
C79459-A1715-B21Loadable-driver Hardware DongleManufacturer: SiemensView Details
-
3RK1400-1MQ00-0AA3K60 Four-Input Two-Output AS-i ModuleManufacturer: SiemensView Details
-
6SE6420-2UC17-5AA1MICROMASTER 420 0.75 kW InverterManufacturer: SiemensView Details
-
FCL2001-A1FDnet C-NET Line CardManufacturer: SiemensView Details
-
4000098-516Termination interface cableManufacturer: InvensysView Details
- Q&A
- Policies How to order Part status information Shipping Method Return Policy Warranty Policy Payment Terms Email Marketing Policy VAT and Import Information
- Asset Recovery
- We Buy Your Equipment. Industry Success stories Amikong News Technical Resources Why choose us FAQs
- Registered Address
-
32D Guomao Building, No.388, Hubin south Road, Siming district, Xiamen,Fujian, China
