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Beckhoff BC8050

RS485 Bus Terminal Controller

MPN: BC8050
Category: BCxxxx, BXxxxx | Controller

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What is the Beckhoff BC8050?

The BC8050 Compact Bus Terminal Controller with serial RS485 interface extends the Beckhoff small controller series by a cost-optimized version in a compact housing. An open serial protocol – like in the BK8x00 Bus Couplers – and the Modbus RTU/ASCII

Specifications

Programming	TwinCAT (via programming interface or fieldbus)
Program memory	48 kbytes
Data memory	32 kbytes
Remanent data	2 kbytes
Runtime system	1 PLC task
PLC cycle time	approx. 3 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
Max. number of bytes process image	512 byte input and 512 byte output
Digital peripheral signals	1,020 inputs/outputs
Analog peripheral signals	128 inputs/outputs
Protocol	KS8000 protocol (open, serial protocol) – Modbus RTU/Modbus ASCII can be selected via address switch.
Data transfer rates	1.2 kbaud…38.4 kbaud
Bus interface	D-sub 9-pin, RS485
Power supply	24 V DC (-15%/+20%)
Input current	320 mA max.
Starting current	2.5 x continuous current
Current supply K-bus	1750 mA
Power contacts	max. 24 V DC/max. 10 A
Electrical isolation	500 V (power contact/supply voltage)
Weight	approx. 100 g
Operating temperature	-25…+60°C
Storage temperature	-40…+85°C
Relative humidity	95%, no condensation
Vibration/shock resistance	conforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emission	conforms to EN 61000-6-2/EN 61000-6-4
Protect. rating/installation pos.	IP20/variable
Approvals/markings	CE, CCC, UL, ATEX, IECEx
Ex marking	ATEX: II 3 G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc
Design form	compact terminal housing with signal LEDs
Material	polycarbonate
Installation	on 35 mm DIN rail, conforming to EN 60715 with lock
Side by side mounting by means of	double slot and key connection
Marking	labeling of the BZxxxx series
Wiring	solid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver
Connection cross-section	s: 0.08…2.5 mm², st: 0.08…2.5 mm², f*: 0.14…1.5 mm²
Stripping length	8…9 mm
Current load power contacts	Imax: 10 A
Dimensions (W x H x D)	44 mm x 100 mm x 68 mm

BC8050: frequently asked questions

When can BC8050 be shipped?

BC8050 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up BC8050 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for BC8050 and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for BC8050, subject to availability and destination.