Home / B&R / B&R X20CP3685 – Interfaces, 1x RS232, 1x Ethernet, 1x POWERLINK (V2)

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B&R X20CP3685 – Interfaces, 1x RS232, 1x Ethernet, 1x POWERLINK (V2)

Name: B&R X20CP3685 – Interfaces, 1x RS232, 1x Ethernet, 1x POWERLINK (V2)
Brand: B&R
SKU: X20CP3685

MPN: X20CP3685 · Brand: B&R

Price on request

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12-month warranty (new) · 3-month (used/refurbished)

30-day returns, no restocking fee on unused parts

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Quick facts

Availability	Confirmed on request
Category	X20 PLC
Lifecycle	Active
Warranty	12-month (new) · 3-month (used/refurbished)
Weight	530 kg

Shipping & availability

When can X20CP3685 be shipped?

X20CP3685 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 X20CP3685 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 X20CP3685 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 X20CP3685, subject to availability and destination.

• Intel Atom 800 MHz performance with integrated I/O processor

• Ethernet, POWERLINK V2 with poll-response chaining and onboard USB

• 3 slots for modular interface expansion

• 512 MB LPDDR4 SDRAM

• 1 GB onboard flash drive

• CompactFlash as removable application memory

• Controller redundancy possible

• Fanless

This controller is based on Intel Atom processor technology and used for applications with the highest performance requirements. It rounds off the top end of the X20 controller product family.

The basic configuration includes USB, Ethernet, POWERLINK V2 and removable CompactFlash. The standard Ethernet interface supports gigabit communication. For even more real-time network performance, the onboard POWERLINK interface supports poll-response chaining mode (PRC).

In addition, 3 slots can be used for additional interface modules to increase flexibility.

Accessories

Optional accessories (11)

4A0006.00-000	Batteries — Lithium battery, 3 V / 950 mAh, button cell
X20AC0SR1	Locking plates — X20 end cover plate, right
X20TB12	Terminal blocks — Tool-free wiring with push-in technology; Simple wire release using lever; Ability to label each terminal; Plain text labeling also possibl…
0AC201.91	Batteries — Lithium batteries 4 pcs., 3 V / 950 mAh button cell
0CFCRD.8192E.02	CompactFlash cards — CompactFlash 8 GB extended temp.
0CFCRD.4096E.02	CompactFlash cards — CompactFlash 4096 MB extended temp.
0CFCRD.2048E.02	CompactFlash cards — CompactFlash 2048 MB extended temp.
0CFCRD.1024E.02	CompactFlash cards — CompactFlash 1024 MB extended temp.
0CFCRD.0512E.02	CompactFlash cards — CompactFlash 512 MB extended temp.
0CFCRD.016GE.02	CompactFlash cards — CompactFlash 16 GB extended temp.
0TGF016.01	Technology Guard — Technology Guard (MSD) with integrated flash drive, 16 GB (MLC)

Specifications

Short description

Interfaces	1x RS232, 1x Ethernet, 1x POWERLINK (V2), 2x USB, 1x X2X Link
System module	Controller

General information

Diagnostics – Battery	Yes, using LED status indicator and software
Diagnostics – CPU function	Yes, using LED status indicator
Diagnostics – CompactFlash	Yes, using LED status indicator
Diagnostics – Ethernet	Yes, using LED status indicator
Diagnostics – POWERLINK	Yes, using LED status indicator
Diagnostics – Temperature	Yes, using software register
Support – Controller redundancy	Yes
Support – Storage health data support	Yes
Support – ACOPOS support	Yes
Support – Visual Components support	Yes
Support – Multicore support	No
Power consumption " data-placement="top" data-html="true" data-container="body" data-content="The specified values are maximum values. For examples of the exact calculation, see section "Mechanical and electrical configuration" in the X20 System user's manual."> – Internal I/O	0.6 W
Certifications – CE	Yes
Certifications – UKCA	Yes
Certifications – CRA (Cyber Resilience Act)	In preparation
Certifications – ATEX	Zone 2, II 3G Ex nA nC IIA T5 Gc; IP20, Ta (see X20 user's manual); FTZÚ 09 ATEX 0083X
Certifications – UL	cULus E115267; Industrial control equipment; cULus E537419; Engine generator controller
Certifications – HazLoc	cCSAus 244665; Process control equipment; for hazardous locations; Class I, Division 2, Groups ABCD, T5
Certifications – DNV	Temperature: B (0 to 55°C); Humidity: B (up to 100%); Vibration: B (4 g); EMC: B (bridge and open deck)
Certifications – CCS	Yes
Certifications – LR	ENV1
Certifications – KR	Yes
Certifications – ABS	Yes
Certifications – BV	EC33B ; Temperature: 5 - 55°C; Vibration: 4 g; EMC: Bridge and open deck
Certifications – KC	Yes
B&R ID code	0xF9EE
Cooling	Fanless
Status indicators	CPU function, Ethernet, POWERLINK, CompactFlash, battery
Power consumption without interface module and USB	6.9 W
Power consumption for X2X Link power supply " data-placement="top" data-html="true" data-container="body" data-content="The specified values are maximum values. For examples of the exact calculation, see section "Mechanical and electrical configuration" in the X20 System user's manual.">	1.42 W
Additional power dissipation caused by actuators (resistive) [W]	-

CPU and X2X Link power supply

Input voltage	24 VDC -20% / +25%; (nominal voltage: 24 VDC); (max. input power at nominal voltage: 36 W)
Input current	Max. 1.5 A at 24 VDC
Fuse	Integrated, cannot be replaced
Reverse polarity protection	Yes

X2X Link power supply output

Nominal output power	7 W " data-placement="top" data-html="true" data-container="body" data-content="For operation above 55°C, derating of the nominal output power of the X2X Link power supply to 5 W must be observed.">
Parallel connection	Yes " data-placement="top" data-html="true" data-container="body" data-content="In parallel operation, it is only permitted to expect 75% of the nominal power. It is important to ensure that all power supply units operated in parallel are switched on and off simultaneously.">
Redundant operation	Yes

Input I/O power supply

Input voltage	24 VDC -15% / +20%; (nominal voltage: 24 VDC); (max. input power at nominal voltage: 240 W)
Fuse	Required line fuse: Max. 10 A slow-blow

Output I/O power supply

Nominal output voltage	24 VDC
Permissible contact load	10 A

Power supply - General information

Diagnostics – RS232 data transfer	Yes, using LED status indicator
Diagnostics – Module run/error	Yes, using LED status indicator and software
Diagnostics – Overload	Yes, using LED status indicator and software
Electrical isolation – I/O supply - I/O power supply	No
Electrical isolation – CPU/X2X Link supply - CPU/X2X Link power supply	Yes
Status indicators	Overload, operating status, module status, RS232 data transfer

Controller

Processor – Data code	24 kB
Processor – Program code	32 kB
Processor – Type	Atom E3915
Processor – Clock frequency	800 MHz
Processor – L2 cache	1 MB
Data buffering – Battery monitoring	Yes
Data buffering – Lithium battery	During operation: 4 years; PLC switched off: Min. 2 years at 23°C ambient temperature
Standard memory – RAM	512 MB LPDDR4 SDRAM
Standard memory – User RAM	1 MB SRAM " data-placement="top" data-html="true" data-container="body" data-content="1 MB SRAM minus the configured remanent variables.">
Application memory – Guaranteed	40 TB
Application memory – Results for 5 years	21.9 GB/day
Application memory – Type	1 GB eMMC flash memory
Application memory – Data retention	10 years
Application memory – Guaranteed erase/write cycles	20,000
Application memory – Error-correcting code (ECC)	Yes
CompactFlash slot	1
Real-time clock	Nonvolatile, resolution 1 s, -20 to 20 ppm accuracy at 25°C
Floating point unit (FPU)	Yes
Integrated I/O processor	Processes I/O data points in the background
Modular interface slots	3
Remanent variables	Max. 512 kB " data-placement="top" data-html="true" data-container="body" data-content="The memory size for remanent variables is configurable in Automation Studio.">
Shortest task class cycle time	200 µs
Typical instruction cycle time	0.0028 µs

Interfaces

Interface IF1 – Signal	RS232
Interface IF1 – Variant	Connection via 12-pin terminal block X20TB12
Interface IF1 – Max. distance	900 m
Interface IF1 – Transfer rate	Max. 115.2 kbit/s
Interface IF2 – Physical layer	10BASE-T/100BASE-TX/1000BASE-T
Interface IF2 – Half-duplex	Yes
Interface IF2 – Full-duplex	Yes
Interface IF2 – Autonegotiation	Yes
Interface IF2 – Auto-MDI/MDIX	Yes
Interface IF2 – Signal	Ethernet
Interface IF2 – Variant	1x RJ45 shielded
Interface IF2 – Line length	Max. 100 m between 2 stations (segment length)
Interface IF2 – Transfer rate	10/100/1000 Mbit/s
Interface IF3 – Physical layer	100BASE-TX
Interface IF3 – Half-duplex	Yes
Interface IF3 – Full-duplex	POWERLINK mode: No / Ethernet mode: Yes
Interface IF3 – Autonegotiation	Yes
Interface IF3 – Auto-MDI/MDIX	Yes
Interface IF3 – Fieldbus	POWERLINK (V2) managing or controlled node
Interface IF3 – Type	Type 4 " data-placement="top" data-html="true" data-container="body" data-content="For additional information, see section "Communication / POWERLINK / General information / Hardware - IF/LS" in Automation Help.">
Interface IF3 – Variant	1x RJ45 shielded
Interface IF3 – Line length	Max. 100 m between 2 stations (segment length)
Interface IF3 – Transfer rate	100 Mbit/s
Interface IF4 – Type	USB 1.1/2.0
Interface IF4 – Variant	Type A
Interface IF4 – Max. output current	0.5 A
Interface IF5 – Type	USB 1.1/2.0
Interface IF5 – Variant	Type A
Interface IF5 – Max. output current	0.5 A
Interface IF6 – Fieldbus	X2X Link master

Electrical properties

Electrical isolation

Ethernet (IF2), POWERLINK (IF3) and X2X (IF6) isolated from each other, from other interfaces and from PLC

Operating conditions

Mounting orientation – Horizontal	Yes
Mounting orientation – Vertical	Yes
Installation elevation above sea level – 0 to 2000 m	No limitation
Installation elevation above sea level – >2000 m	Reduction of ambient temperature by 0.5°C per 100 m
Degree of protection per EN 60529	IP20

Ambient conditions

Temperature – Horizontal mounting orientation	-25 to 60°C
Temperature – Vertical mounting orientation	-25 to 50°C
Temperature – Derating	See section "Derating".
Temperature – Storage	-40 to 70°C
Temperature – Transport	-40 to 70°C
Relative humidity – Operation	5 to 95%, non-condensing
Relative humidity – Storage	5 to 95%, non-condensing
Relative humidity – Transport	5 to 95%, non-condensing

Mechanical properties

Dimensions – Width	200 mm
Dimensions – Height	99 mm
Dimensions – Depth	85 mm
Note	Order application memory (CompactFlash) separately ; Backup battery included in delivery ; X20 end cover plate (right) included in delivery ; 12-pin X20 terminal block included in delivery ; Interface module slot covers included in delivery
Weight	530 g " data-placement="top" data-html="true" data-container="body" data-content="The PLC was weighed with the battery and terminal block X20TB12. The CompactFlash card, interface module slot covers and X20 end cover plate (right) were not included in the weighing.">

Downloads & documentation

Official documents from B&R, downloaded directly from the manufacturer.

Data sheets & manuals

Data sheet X20CPx68x(X)	PDF · 4 MB · 1.58 (07/28/2026) - EN
Open Source Licenses X20CPx68x_X20EMx	ZIP · 1 MB · 1.10 (09/05/2024)
Redundancy for control systems	PDF · 9 MB · 1.31 (07/03/2025) - EN
X20 System User´s Manual	PDF · 50 MB · 4.40 (03/10/2026) - EN

CAD & dimension drawings

3D File DXF/STEP X20 CPU 3-Slot X20CP3x8x	ZIP · 202 KB · 1.10 (03/28/2019)
3D File DXF/STEP X20 Electronic module	ZIP · 10 KB · 1.0 (10/17/2005)
3D File STEP X20 I/O-Slice	ZIP · 872 KB · 1.1 (03/13/2019)
Dimensions PDF X20 Electronic module	PDF · 3 KB · 1.0 (10/17/2005)

Certificates (13)

2226379 CSA Certificate of Compliance X20 X67	PDF · 205 KB · 2026_09 (09/21/2026)
64331_A1 BV Certificate of Compliance X20	PDF · 1 MB · 2026_05 (05/05/2026)
ABS Certificate of Product Design Assessment - X20 IO Series	PDF · 454 KB · 2.00 (01/13/2025)
CCS Type Approval Certificate - X20	PDF · 285 KB · 1.00 (06/28/2024)
E115267 UL Certificate of Compliance X20	PDF · 3 MB · 2026_08_27 (08/27/2026)
E537419 UL Certificate of Compliance X20	PDF · 153 KB · 2026-07 (07/27/2026)
EU Data Act - X20 PLC - Connected Product Information Notice	PDF · 91 KB · 1.00 (09/30/2025)
EU Declaration ATEX X20	PDF · 218 KB · 2023-07 (09/05/2023)
EU Declaration of conformity PLC X20	PDF · 169 KB · 2021/10 (11/08/2021)
KR Type Approval Certificate MIL39390-AC003 (X20 System)	PDF · 320 KB · 2.0 (05/05/2025)
Lloyds Register (X20 only)	PDF · 884 KB · 1.30 (07/07/2025)
TAA00000BJ DNV Type Approval Certificate X20	PDF · 186 KB · 13.0 (05/04/2026)
UK Declaration PLC X20	PDF · 151 KB · 2024-01 (01/18/2024)