BC9191-0000

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The Beckhoff BC9191-0000 belongs to the BC Bus Terminal Series and features two Ethernet interfaces with RJ45 connectors. It supports up to 64 bus terminals and programming with TwinCAT 2 via Ethernet. The terminal has a supply voltage of 230 V AC and a protection rating of IP20 in a vertical installation position.

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Product Description:

The BC9191-0000 is a universal Ethernet based bus coupler suitable for use in industrial applications and building systems. Data handling is high with a capacity of 64 fieldbus bytes and about 512 input and output bytes. This makes it useful especially in systems that require considerable data traffic. The device has 2 RJ45 Ethernet ports (switched) which enhances network connection and allows daisy chaining of the devices. The BC9191-0000 device is also fitted with TwinCAT ADS and supports Modbus TCP making it possible to operate in an extended range of automation devices.

Their BC9191–0000 characteristics regarding the inputs and outputs are: 3 digital inputs and 3 voltage inputs in 0 – 10 V range what allows a majority of sensors application. Dedicated Pt/Ni1000 inputs are also available to measure temperature in the range of minus twenty to plus sixty degrees Celsius with a maximum resistance of ten k Ω. Concerning the outputs, digital outputs have a maximum load of ten amperes and the outputs can be in form of LED indicator, relay or triac depending on the uses. Further, there are 2 analog outputs with 0/10V settings enabling control of analog devices.

The twisted pair of a sub-bus system communicates via the RS485 interface, thus making the system more versatile in terms of communication and the additions that can be made to the network. Operating with a 230V AC power supply, the device delivers 200 mA current to the K-bus used for terminal control. Network communication and configuration are made easier with the use of a bus interface provided with dual switched RJ45 ports. Coupler dimension: 118 mm (127mm including end cover and DIN rail) x 100 mm x 70 mm which ensures it is integration ready regardless of how constrained a particular space is.

Analog inputs
3 x 0…10 V
Analog outputs
2 x 0…10 V
Bus terminals max.
64
Current supply (K‑bus)
200 mA
Depth
70 mm
Digital inputs
3 contacts
Digital outputs (relay/triac)
up to 10 A
Digital outputs indicator
LED
Ethernet interfaces
2 x RJ45 (switched)
Fieldbus input size
512 bytes
Fieldbus output size
512 bytes
Height
100 mm
Protocols
TwinCAT ADS, Modbus TCP
Resistance measurement range
0…10 KΩ
Sub‑bus interface
RS485
Supply voltage
230 V AC
Temperature input
Pt/ni1000, -20…+60 °C
Width
118 mm (127 mm incl. cover)

Frequently Asked Questions about BC9191-0000:

Q: What type of device is the BC9191-0000?

A: The BC9191-0000 is a coupler from Beckhoff's BC Bus Terminal Series, designed to support various fieldbus protocols for automation applications.

Q: How many bus terminals can the BC9191-0000 accommodate?

A: The device can accommodate up to 64 bus terminals using the RS485 subbus system, providing flexibility in system configuration.

Q: What protocols does the BC9191-0000 support?

A: The BC9191-0000 supports multiple protocols, including TwinCAT ADS and Modbus TCP, allowing for versatile communication options in automation systems.

Q: What are the memory specifications of the BC9191-0000?

A: The device features a program memory capacity of 128 kbytes, enabling the storage of control programs and logic.

Q: What are the input capabilities of the BC9191-0000?

A: The BC9191-0000 has digital input capabilities for 3 contacts and supports 3 analog inputs ranging from 0 to 10 V, facilitating a variety of sensor connections.


Internal Product Review

  • ‘‘The TwinCAT ADS and Modbus TCP protocols are two of the many that the BC9191-0000 supports. This machine, which is part of the BC Bus Terminal Series by Beckhoff, can accommodate up to 64 bus terminals using the RS485 subbus system. It weighs 345 grams and has a program memory capacity of 128 kbytes.’’

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