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B&R X20cAO2438

I/O module, 2 analog outputs 4 to 20 mA

MPN: X20cAO2438
Category: Analog outputs

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12-month warranty (new) · 3-month (used/refurbished)
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What is the B&R X20cAO2438?

2 analog current outputs

HART protocol integration

Support for HART variables

Electrically isolated analog channels

16-bit digital converter resolution

OSP mode

NetTime timestamp: HART image

Specifications

Short description

I/O module

2 analog outputs 4 to 20 mA, 0 to 20 mA or 0 to 24 mA

General information

Diagnostics – Module run/error	Yes, using LED status indicator and software
Diagnostics – Outputs	Yes, using LED status indicator and software
Diagnostics – HART link	Yes, using LED status indicator and software
Diagnostics – HART error	Yes, using LED status indicator and software
Power consumption – Bus	0.05 W
Power consumption – Internal I/O	1.65 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
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 – LR	ENV1
Certifications – KR	Yes
Certifications – ABS	Yes
Certifications – BV	EC33B ; Temperature: 5 - 55°C; Vibration: 4 g; EMC: Bridge and open deck
B&R ID code	0xE211
Status indicators	I/O function per channel, operating state, module status, HART
Additional power dissipation caused by actuators (resistive) [W]	-

Analog outputs

Data output rate – With HART	210 ms (default)
Data output rate – Analog	1 ms without ramp
Max. error – 4 to 20 mA	±0.025% (note: At 25°C)
Max. error – 0 to 20 mA	±0.022% (note: At 25°C)
Max. error – 0 to 24 mA	±0.02% (note: At 25°C)
Max. error – 4 to 20 mA	±0.025% (note: At 25°C)
Max. error – 0 to 20 mA	±0.022% (note: At 25°C)
Max. error – 0 to 24 mA	±0.02% (note: At 25°C)
Output format – 4 to 20 mA	INT 0x0000 to 0x7FFF / 1 LSB = 0x0001 = 488.281 nA
Output format – 0 to 20 mA	INT 0x0000 to 0x7FFF / 1 LSB = 0x0001 = 610.352 nA ; UINT 0x0000 to 0xFFFF / 1 LSB = 0x0001 = 305.176 nA
Output format – 0 to 24 mA	INT 0x0000 to 0x5DC0 / 1 LSB = 0x0001 = 1000 nA
Max. gain drift – 4 to 20 mA	±0.0055%/°C (note: Based on the current output value.)
Max. gain drift – 0 to 20 mA	±0.005%/°C (note: Based on the current output value.)
Max. gain drift – 0 to 24 mA	±0.005%/°C (note: Based on the current output value.)
Max. offset drift – 4 to 20 mA	±0.0035%/°C (note: Based on the respective output range.)
Max. offset drift – 0 to 20 mA	±0.002%/°C (note: Based on the respective output range.)
Max. offset drift – 0 to 24 mA	±0.002%/°C (note: Based on the respective output range.)
Error caused by load change – 4 to 20 mA	0.14% (note: Load change from 1 Ω → 600 Ω, resistive)
Error caused by load change – 0 to 20 mA	0.1% (note: Load change from 1 Ω → 600 Ω, resistive)
Error caused by load change – 0 to 24 mA	0.1% (note: Load change from 1 Ω → 600 Ω, resistive)
Test voltage – Channel - Channel	1000 VAC
Test voltage – Channel - Bus	1000 VAC
Test voltage – Channel - Ground	1000 VAC
Output	4 to 20 mA, 0 to 20 mA or 0 to 24 mA configurable using software
Digital converter resolution	16-bit
Settling time on output change over entire range	2 ms to 20 s, configurable using software
Output protection	Short-circuit proof, overvoltage protection (up to 30 VDC)
Open-circuit detection	Yes, using hardware and software
Data format	INT
Load per channel	Max. 600 Ω
Short-circuit proof	Yes, continuous
Output filter	Active second-order low-pass filter / Cutoff frequency 19 Hz; Configurable slew rate
Nonlinearity	<0.003% (note: Based on the entire output range.)

HART

Multi-drop operation – Possible	Yes
Multi-drop operation – Stations	Up to 15
Transmission amplitude – Minimum	400 mV pp
Transmission amplitude – Typical	500 mV pp
Transmission amplitude – Maximum	600 mV pp
Receiving amplitude – Minimum	120 mV pp
Receiving amplitude – Maximum	1500 mV pp
Transfer rate	1200 bit/s
Operating frequencies	1200 Hz / 2200 Hz
Burst operation possible	Yes

Electrical properties

Electrical isolation

Channel isolated from channel and bus

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 85°C
Temperature – Transport	-40 to 85°C
Relative humidity – Operation	Up to 100%, condensing
Relative humidity – Storage	5 to 95%, non-condensing
Relative humidity – Transport	5 to 95%, non-condensing

Mechanical properties

Note	Order 1x terminal block X20TB12 separately. ; Order 1x bus module X20cBM11 separately.
Pitch	12.5 +0.2 mm

Accessories

Required accessories (order separately)

X20cBM11	Bus modules — Bus module for 24 VDC I/O modules; The internal I/O power supply is connected through.
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…

Downloads & documentation

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

Data sheets & manuals

CAD & dimension drawings

Certificates (13)

X20cAO2438: frequently asked questions

When can X20cAO2438 be shipped?

X20cAO2438 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 X20cAO2438 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 X20cAO2438 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 X20cAO2438, subject to availability and destination.