Overview
Configured for programming and data transmission in AC 800M controller networks, the ABB 3BSE018114R1, also cataloged as the TK850 Communication Cable, provides direct physical/electrical execution. It serves as the physical serial layer to bridge the control processor tool ports with local engineering workstations executing Control Builder M software. The hardware establishes point-to-point data pathways for diagnostic interrogation, controller initialization, and executive firmware payload deployment under strict industrial constraints.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | TK850 |
| Brand | ABB |
| Origin | Sweden |
| Weight | 0.25 kg |
| Dimensions | 2.5 meters (Length) |
| Interface / Connectors | 9-pin D-sub female to RJ45 |
| Shielding | Foil and braided overall shield |
| Jacket Material | Industrial grade PVC |
| Operating Temp | -20 deg C to +60 deg C |
| Storage Temp | -40 deg C to +70 deg C |
| Relative Humidity | 5% to 95%, non-condensing |
| Power Consumption | Passive (0 W) |
| Compliance / Certifications | CE, RoHS, WEEE |
Firmware Flash Compatibility and Deterministic Performance
The TK850 cable layout complies with the strict physical layer timing required during firmware flash procedures on AC 800M processors. Because baseline serial communication velocity relies on stable signal transmission profiles, the internal capacitance of the cable assembly is controlled to prevent data frame corruption during high-baud-rate bootloader operations. This optimization ensures that firmware payload delivery operates within deterministic time windows, eliminating transmission timeouts that could lead to unrecoverable processor boot faults.
Frequently Asked Questions
Q: Does the TK850 cable support live hot-swapping while the controller is executing logic?
A: Yes. The passive design of the cable does not disrupt the internal backplane bus. Connecting or disconnecting the cable from the processor tool port (COM3) will not cause a CPU crash or affect executing application tasks. However, serial communication tools will experience immediate loss of signal.
Q: Can this cable be extended using standard RJ45 coupling hardware?
A: Extending the cable beyond its specified length is not recommended. Increasing physical length alters the line impedance and capacitance, which can induce signal attenuation and compromise EMI immunity on the factory floor.
Field Installation Guidelines
- Routing Isolation: Route the TK850 cable away from high-voltage AC power lines, variable frequency drives (VFDs), and heavy inductive loads to prevent electromagnetic coupling.
- Bend Radius Constraints: Maintain a minimum dynamic bend radius of 50 mm during installation to prevent mechanical fatigue and degradation of the internal foil shielding.
- Connector Security: Ensure the 9-pin D-sub retention screws are fully engaged with the workstation serial port to guarantee consistent ground continuity across the shield.
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