6XV1851-1AN20 PROFIBUS Bus Cable, Siemens FC Industrial Shielded DP Network Cable

Siemens PROFIBUS Cable

6XV1851-1AN20 Bus Cable

PROFIBUS PA Cable

6XV1851-1AN20

Siemens PROFIBUS Cable 6XV1851-1AN20 Bus Cable is a PROFIBUS PA Cable featuring twisted-pair shielding for reliable industrial automation data transmission. Durable, interference-resistant design ensures stable communication in harsh environments.

Specification

SEODescription

The Siemens PROFIBUS Cable 6XV1851-1AN20 Bus Cable is a shielded twisted-pair cable designed for robust industrial communication in process automation. Specifically engineered as a PROFBUS PA Cable, it supports data and power transmission (24V DC nominal) over two conductors, enabling direct connectivity to field devices like sensors and actuators. Compatible with RS-485 interfaces, it operates at 31.25 kbit/s and can link up to 32 devices per segment, with a maximum network length of 1,900 meters. Suitable for harsh environments, it functions within -40°C to +70°C and features flame-retardant insulation, making it ideal for oil/gas, chemical, and water treatment industries. Its key advantages include high EMI resistance, durability in extreme conditions, and compliance with IEC 61158 standards. However, its lower bandwidth compared to PROFIBUS DP and specialized connector requirements may limit flexibility in mixed-network setups.

SEOSpecification

Parameter	Specification
Product Model	6XV1851-1AN20
Cable Type	Siemens PROFIBUS PA Cable (Type A)
Application	PROFIBUS PA Field Bus Networks
Conductor Material	Bare Copper
Core Structure	2 x 0.64mm² + Shield
Nominal Voltage	30V AC/DC
Operating Temperature	-40°C to +70°C
Shielding	Double-layer (Foil + Braid)
Outer Diameter	9.8mm
Characteristic Impedance	100Ω ±20% (3-93 kHz)
Signal Attenuation	≤3 dB/km @ 39 kHz
Max Segment Length	1900m (without repeaters)
Certification	CE, UL, PROFIBUS PA compliant

SEOQandA

question:Does the company have a professional product selection engineering team?
answer:Yes, we have a dedicated team with expertise in market research, quality assessment, and product optimization to ensure competitive offerings.
question:Can the company provide upgraded or alternative product models?
answer:Yes, we offer upgraded models and alternative options based on availability, market trends, and client-specific requirements.
question:Does the company support product customization for specific markets?
answer:Yes, we provide tailored customization services to meet regional regulations, design preferences, or functional adjustments as needed.

SEOQandA_Product

question:What is the maximum allowable cable length for 6XV1851-1AN20 in PROFIBUS networks?
answer:Maximum length depends on baud rate: 100m at 12Mbps, 400m at 1.5Mbps, 1200m at 500kbps. Use repeaters for longer distances.
question:How to address signal interference with 6XV1851-1AN20?
answer:Ensure proper single-point shield grounding. Avoid ground loops by connecting shield only at one end of the bus.
question:Why does 6XV1851-1AN20 show impedance mismatch errors?
answer:Use PROFIBUS-certified connectors. Verify proper termination (9-pin D-Sub) and check for cable damage or incorrect terminator resistors.
question:Can 6XV1851-1AN20 withstand outdoor installation?
answer:Not recommended for direct outdoor use. Use conduit or UV-resistant conduit if exposed. Temperature range: -30°C to +70°C.
question:Why does PROFIBUS communication fail despite using 6XV1851-1AN20?
answer:Check termination resistors (active at both ends), verify baud rate consistency, and inspect for cable breaks using a bus analyzer.