Siemens 6ES5777-1BC01 Bus Terminal Unit

Siemens 6ES5777-1BC01 Bus Terminal Unit (BT 777-1)

Availability: 2 left in stock

DescriptionThe Siemens 6ES5 777-1BC01, also identified as the BT 777-1, is a dedicated bus terminal unit engineered for the Simatic...

SKU: 6ES5777-1BC01

Manufacturer: Siemens
Product No.: 6ES5777-1BC01
Product Type: Bus Terminal Unit
Product Origin: Germany
Payment:T/T, Western Union
Weight: 540g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Description

The Siemens 6ES5 777-1BC01, also identified as the BT 777-1, is a dedicated bus terminal unit engineered for the Simatic S5 automation ecosystem and Simatic Net L1 industrial networks. This module is designed to facilitate stable, long-distance communication in industrial environments, supporting transmission distances of up to 4 km. It provides essential signal conditioning and line monitoring, ensuring data integrity for legacy control architectures in demanding process applications.

Features

Designed for integration with Simatic S5 and Simatic Net L1 network systems.
Integrated wire-break recognition circuitry for real-time line integrity monitoring.
Galvanic isolation to protect internal electronics from ground loops and electromagnetic interference (EMI).
Optimized for long-distance data transmission up to 4 km without the need for external repeaters.
Robust construction suitable for continuous-process industrial environments.

Applications

This bus terminal is primarily utilized in legacy automation environments where reliable, long-range communication is required between controllers and remote field devices. Typical applications include oil and gas refineries, mining operations, and municipal power distribution facilities where signal stability over long cable runs is critical to preventing downtime.

Technical Specifications

Model	6ES5 777-1BC01
Brand	Siemens
Product Type	Bus Terminal (BT 777-1)
Network Protocol	Simatic Net L1
Max Transmission Distance	4 km
Power Consumption	2.5 W at 24 VDC
Operating Temperature	0 to 60 deg C

Installation Guidelines

Ensure the system power is fully disconnected before installing or removing the bus terminal unit.
Mount the unit in a clean, dry environment, ensuring adequate space for cooling and cable management.
Verify that all field wiring is properly shielded to minimize the impact of high-EMI sources.
Maintain consistent impedance matching across the network segment to ensure signal clarity.
Follow standard ESD (Electrostatic Discharge) precautions when handling the module to prevent damage to internal circuitry.

FAQ

What is the primary function of the 6ES5 777-1BC01?

The module acts as a bus terminal for the Simatic Net L1 network, enabling reliable, long-distance communication for Simatic S5 controllers while providing diagnostic capabilities like wire-break detection.

Does this unit require external signal repeaters?

No, the BT 777-1 is designed to maintain signal integrity over distances up to 4 km, eliminating the need for additional repeaters in standard configurations.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

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Maintenance Manager, USA

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Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

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Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.