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- TK856 3BSE057021R1
We provide 1 year warranty for all remaining parts.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online.
If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.
Amikon offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
Technical specifications for TK856 3BSE057021R1
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Product ModelTK856 3BSE057021R1
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Product ParametersRCU Control Link Cable
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Tariff Code8537101190
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Country of originSWEDEN
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Place of shipmentXiamen, China
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Estimated Shipping Size18.5x6.5x12.6cm
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ManufacturerABB
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Weight0.5 kg
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Voltage Ratingup to 300 V
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Current RatingUp to 2 A per conductor
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Operating Temperature-20 °C to +70 °C (typical)
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Storage Temperature-40 °C to +85 °C
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Humidity5–95% non-condensing
Description
TK856
3BSE057021R1
RCU Control Link Cable
TK856 RCU Control Link Cable, 1m
3BSE057021R1
RCU Control Link Cable
TK856 RCU Control Link Cable, 1m
Information
Overview
Manuals
Technical notes
Product Applications
Core Installation Process
Features:
- Dedicated PM891 Redundant Control Link
- CPU Role Selection & Identity Assignment
- Precise 1.0-Meter Prefabricated Length
- Dual-Cable Redundancy Architecture
- Compact & Lightweight Form Factor
The TK856 3BSE057021R1 ABB RCU Control Link Cable may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
ABB TK856 3BSE057021R1 RCU Control Link Cable Manuals, Datasheets, Drivers, 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.
The TK856 operates within a dual-cable redundancy architecture that separates control functions from data synchronization. It is complemented by the TK855 RCU Data Link Cable (3BSC950356R1), which transfers the actual application data required to keep the backup PM891 synchronized with the primary PM891. The TK856 handles the separate control link function, ensuring that role management, identity assignment, and control handshaking remain isolated from high-volume data synchronization traffic. This architectural separation enhances system reliability and simplifies fault isolation during diagnostic procedures.
- Power Generation:Aux turbine/pump/switchyard metrics
- Oil & Gas Facilities:Process control & safety layers
- Water Treatment Plants:Sequencing data across control clusters
- Cement & Glass Factories:Chettinad systems
- Pulp, Paper, & Steel Mills:Legacy protocols for rollers/digesters/casting
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Power Down Warning: Always isolate or remove control power to the processor chassis before handling system connections to prevent static or electrical damage.
Locate the RCU Ports: Identify the dedicated RCU link ports on the face or base of your redundant PM891 units.
Connect the D-Sub Ends: Plug the prefabricated D-sub 25-pin connectors firmly into the designated ports.
Secure the Thumbscrews: Tighten the built-in thumbscrews on both ends by hand to guarantee a secure physical connection and continuous grounding. Do not overtighten with tools.
FAQs
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What is this TK856 3BSE057021R1?
+The ABB TK856 3BSE057021R1 is a 1-meter prefabricated RCU (Redundant Control Unit) control link cable specifically to connect ABB controller hardware -
What is the primary function of the TK856 cable?
+The TK856 is used as a control link cable to connect redundant processor units, primarily the ABB PM891. It ensures reliable, continuous synchronization and communication between primary and backup controller nodes in the ABB System 800xA platform -
Which controller uses this cable?
+It is exclusively used for redundancy linking with the PM891 controller line -
What is the TK856 cable used for?
+The TK856 is an RCU (Redundant Control Unit) control link cable used to establish a reliable communication link between redundant processor units (such as the PM891) to enable hot replacement and continuous process control.
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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.
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32D UNITS,GUOMAO BUILDING,NO 388 HUBIN SOUTH ROAD,SIMING DISTRICT,XIAMEN