Part number
6BK1621-0AA00-0AA0
Model no
PN/BACnet Link
$860.09 On request Dispatch — · From TürkiyeGet a Quote
Manufacturer phase-out

Siemens has announced the end of 6BK1621-0AA00-0AA0

Once production ends, supply depends on remaining stock.

No replacement announced yet. Tell us the application and we will propose an alternative.

SIMATIC MICRO-DRIVE

Siemens 6BK1621-0AA00-0AA0 SIMATIC PN/BACnet LINK PROFINET to BACnet/IP Gateway IP20 Automation Component

PROFINET to BACnet/IP gateway, B-GW profile, 2x RJ45 integrated switch, 24V DC, IP20.

Rated current
0.11 A
Rated operational voltage
24 V AC
Communication
PROFINET IO Device, BACnet/IP (B-GW profile), 2x RJ45 integrated switch
EAN
4025515739616
Description

About the PN/BACnet Link

The Siemens 6BK1621-0AA00-0AA0 SIMATIC PN/BACnet LINK is a coupling module that bridges PROFINET to BACnet/IP fieldbus traffic, implementing the B-GW device profile at IP20. It runs PROFINET IO Device with an integrated 2-port switch on one side and a BACnet/IP interface supporting 1,000 objects and 1,000 subscription services on the other, powered from a 24 V DC supply.

Certifications & Standards

  • CE
  • UL
  • cULus
  • RCM
  • KC
  • PNO
  • BTL
  • RoHS

Selection Notes

The B-GW device profile means this module acts as a routing gateway rather than a simple BACnet client: it exposes PROFINET IO process data as BACnet objects for a building management system while keeping the PROFINET side on its own integrated 2-port switch for line topology. The 10 ms mains-buffering time and reverse-polarity/overvoltage/short-circuit protection on the 24 V DC input let it sit on a shared control-cabinet supply without extra conditioning. Choose it specifically for PROFINET-to-BACnet/IP integration; it is not a general PROFINET switch or repeater.

Specification

Full specification

98 values · Last verified 01 Nov 2026

General information 7

Product type designation PN/BACnet Link
Firmware version: FW update possible Yes
Vendor identification (VendorID) 7
Product function: I&M data Yes
Product function: Isochronous mode No
Engineering with: STEP 7 TIA Portal configurable/integrated from version V14 SP1
Engineering with: PROFINET from GSD version/GSD revision GSDML V2.3.x

Installation type/mounting 5

Mounting DIN rail, wall mounting, portrait mounting
Mounting position any
Recommended mounting position Horizontal
Rail mounting Yes
Control cabinet installation Yes

Supply voltage 8

Type of supply voltage DC
Rated value (DC) 24 V
permissible range, lower limit (DC) 20.4 V
permissible range, upper limit (DC) 28.8 V
Reverse polarity protection Yes
Overvoltage protection Yes
Short-circuit protection Yes
Mains buffering: Mains/voltage failure stored energy time 10 ms
Show all 98 specifications ↓ Show less ↑78 more values in Identification, Input current, Power loss, Interfaces, 1. Interface, 2. Interface, Interrupts/diagnostics/status information, Potential separation, Degree and class of protection, Standards, approvals, certificates, Ambient conditions, Dimensions, Weights, Logistics.

Identification 10

Part number 6BK1621-0AA00-0AA0
Type designation PN/BACnet Link
Brand Siemens
Condition New, factory sealed
Source Siemens and its authorised distributors
Warranty Manufacturer warranty
Lifecycle status Phase-out announced by the manufacturer
EAN 4025515739616
ETIM class EC001423
eCl@ss 27242208

Input current 2

Current consumption (rated value) 0.11 A
Current consumption, max. 0.13 A

Power loss 1

Power loss, typ. 2.7 W

Interfaces 6

Supports protocol for PROFINET IO: automatic detection of transmission rate No
Supports protocol for PROFINET IO: Transmission rate, max. 100 Mbit/s
Supports protocol for PROFINET IO: Number of RJ45 ports 2
Supports protocol for PROFINET IO: Number of FC (FastConnect) connections 2
PROFINET functions: Assignment of the IP address, supported Yes
PROFINET functions: Assignment of the device name, supported Yes

1. Interface 10

Interface type BACnet/IP
Isolated Yes; 1 500 V AC or 2 250 V DC
Interface types: RJ 45 (Ethernet) Yes
Interface types: Number of ports 1
Interface types: Design of the connection RJ45
BACnet: BACnet device profile B-GW
BACnet: Supported character sets ISO 10646 (UTF-8)
BACnet: Network Security No
BACnet: Number if BACnet objects/object references 1 000
BACnet: Number of subscription services 1 000

2. Interface 7

Interface type PROFINET
Isolated Yes; 1 500 V AC or 2 250 V DC
Interface types: RJ 45 (Ethernet) Yes
Interface types: Number of ports 2
Interface types: integrated switch Yes
Protocols: PROFINET IO device Yes
Protocols: Open IE communication Yes

Interrupts/diagnostics/status information 8

Status indicator Yes
Alarms Yes
Diagnostics function Yes
Diagnostics indication LED: RUN LED Yes
Diagnostics indication LED: ERROR LED Yes
Diagnostics indication LED: MAINT LED Yes
Diagnostics indication LED: LINK LED Yes
Diagnostics indication LED: RX/TX LED Yes

Potential separation 1

Potential separation exists Yes

Degree and class of protection 1

IP degree of protection IP20

Standards, approvals, certificates 13

CE mark Yes
UL approval Yes
cULus Yes
RCM (formerly C-TICK) Yes
KC approval Yes
PNO certificate Yes
BTL certificate Yes
RoHS conformity Yes
Ecological footprint: environmental product declaration Global warming potential Yes
Ecological footprint: global warming potential, (total) [CO2 eq] 50.8 kg
Ecological footprint: global warming potential, (during production) [CO2 eq] 14.4 kg
Ecological footprint: global warming potential, (during operation) [CO2 eq] 36.8 kg
Ecological footprint: global warming potential, (after end of life cycle) [CO2 eq] -0.52 kg

Ambient conditions 9

Ambient temperature during operation: horizontal installation, min. -25 °C
Ambient temperature during operation: vertical installation, min. -25 °C
Ambient temperature during operation: ceiling installation, min. -25 °C
Ambient temperature during operation: ceiling installation, max. 45 °C
Ambient temperature during operation: floor installation, min. -25 °C
Ambient temperature during operation: floor installation, max. 45 °C
Ambient temperature during storage/transportation: min. -40 °C
Ambient temperature during storage/transportation: max. 85 °C
Relative humidity: Operation, max. 95 %

Dimensions 3

Width 70 mm
Height 112 mm
Depth 75 mm

Weights 1

Weight, approx. 210 g

Logistics 6

Net weight 0.26 kg
Country of origin DE
Shipping weight 0.76 kg
Ships from Türkiye
Dispatch —
Stock On request

Source: manufacturer data · Last verified: 01 Nov 2026

Documents

Documents for 6BK1621-0AA00-0AA0

No documents are on file for this part yet.

Ask us for the datasheet
Certifications

Certifications and standards

  • CE mark
  • UL approval
  • cULus
  • RCM (formerly C-TICK)
  • KC approval
  • PNO certificate
  • BTL certificate
  • RoHS conformity
Quick answers

Questions about the PN/BACnet Link

What is the rated current of PN/BACnet Link?

The rated current of PN/BACnet Link is 0.11 A.

Which supply voltage is PN/BACnet Link rated for?

The rated operational voltage of PN/BACnet Link is 24 V AC.

What is the HS code of PN/BACnet Link for customs?

The tariff (HS) code on file for PN/BACnet Link is 85176200.

What is the EAN of PN/BACnet Link?

The EAN (GTIN) of PN/BACnet Link is 4025515739616.

Where does PN/BACnet Link ship from, and how fast?

PN/BACnet Link ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.

Reviews

Customer reviews

Series

Siemens SIMATIC MICRO-DRIVE

Brand
Siemens
Series
SIMATIC MICRO-DRIVE
$860.09 On request
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PN/BACnet Link

Genuine parts

Genuine, factory-sealed parts

Siemens · 6BK1621-0AA00-0AA0

Every part on Stoklink is new, unused and made by the manufacturer named on the page.

Condition
New and unused, in the manufacturer's factory-sealed packaging.
Sourced from
Siemens and its authorised distributors.
Warranty
The manufacturer's warranty applies.
If a part is not genuine
We refund the full amount.

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