Home Beckhoff BC Bus Terminal Series BC9120

BC9120

Name: BC9120
Brand: Beckhoff
Price: 314 USD
Availability: InStock
Rating: 4.3 (31 reviews)

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The Beckhoff BC9120 is part of the BC Bus Terminal Series, featuring support for TwinCAT ADS and Modbus TCP protocols. It offers a cycle time of approximately 1 ms for 1,000 instructions and accommodates IEC 61131-3 programming languages. The system includes 64 bus terminals expandable to 255, and handles up to 2,040 digital I/O signals.

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Description
Specs
FAQ

Product Description

The BC9120 is a Bus Coupler with an Ethernet interface that features a wide range of applications and can be incorporated into any automation system. It is equipped with data memory with a capacity of 128 kbytes, a remanent data memory capacity of 2 kbytes, and a modem-supported data storage capacity of an extra 1 kbyte. It makes up for the power loss that would otherwise cause a loss of memory. The cycle time elapsed by the PLC corresponds with an output of 1000 instructions taking about 1 ms which entails rapid performance, although without the I/O cycle time of the K-bus.

The Workstation2 software package of BC9120 supports various programming languages such as IL, LD, FBD, SFC, ST following IEC 61131-3 standards which enlarge the possibility of programming. It allows the implementation of changes without the locking up of the system. The maximum number of bus terminals managed by the device is 64, but can be theoretically expanded to 255 terminals through the K-bus extension.

In terms of connectivity, the BC9120 can drive in 512 bytes and output 512 bytes through the field bus and can accommodate up to 2040 Digital These supported communication lines use TwinCAT ADS and Modbus TCP with the added capability of self-identifying data radio speeds of 10/100Mbit/s. It possesses a dual RJ45 port structure that has a two-channel switch making connection provision and networking very easy and quick. The voltage supplied is 24 V DC, with a tolerance of 15% +20%, making it eliminates factors restricting system use. The BC9120 is designed to be used in a highly reliable environment due to the wide provisions for digital and analogue IO as well.

BC9120 Technical Specifications

Program Memory:	128 kbytes
Digital Peripheral Signals:	2,040 inputs/outputs
Analog Peripheral Signals:	512 inputs/outputs
Protocol:	TwinCAT ADS, Modbus TCP
Data Transfer Rates:	10/100 Mbit/s, automatic recognition
Bus Interface:	2 x RJ45 (2-channel switch)
Power Supply:	24 V DC (-15%/+20%)
Data Memory:	128 kbytes
Remanent Data:	2 kbytes
Persistent Data:	1 kbyte
Plc Cycle Time:	approx. 1 ms for 1,000 instructions (without I/O cycle, K-bus)
Programming Languages:	IEC 61131-3 (IL, LD, FBD, SFC, ST)
Online Change:	yes
Number Of Bus Terminals:	64 (255 with K-bus extension)
Max. Number Of Bytes Fieldbus:	512 byte input and 512 byte output

Frequently Asked Questions about BC9120

Q: What is the maximum number of bus terminals the BC9120 can accommodate?

A: The BC9120 can accommodate up to 64 bus terminals, which can be expanded to 255 terminals using K-bus connectivity.

Q: What is the power supply requirement for the BC9120?

A: The BC9120 requires a 24 V DC power source to operate, ensuring compatibility with various automation setups.

Q: What certifications does the BC9120 have?

A: The device satisfies several certifications, including CE, UL, ATEX, and IECEx, indicating compliance with international safety and quality standards.

Q: What are the memory specifications of the BC9120?

A: The BC9120 features a program memory of 128 kbytes, data memory of 128 kbytes, remanent data of 2 kbytes, and persistent data of 1 kbyte.

Q: What is the PLC cycle time for the BC9120?

A: The PLC cycle time for the BC9120 is approximately 1 ms for 1,000 instructions (excluding the I/O cycle and K-bus), providing efficient processing for control tasks.

Internal Product Review

‘‘As a member of the BC Bus Terminal Series, the Beckhoff BC9120 can accommodate up to 64 bus terminals; with K-bus, that number may be increased to 255. It needs a 24 V DC power source to run. The device satisfies CE, UL, ATEX, and IECEx requirements and weighs around 170 grams.’’