Serviceline Industrial Sensors
Phone: 330-486-0001
Fax: 330-405-4710
Serviceline Explosion Protection
Phone: 330-486-0002
Fax: 330-963-5827

Gateway for PROFINET LB8122A.1.EL

  • Communication via PROFINET
  • Mounting in Zone 2, Class I/Div.2 or in the safe area
  • Interface between the I/O modules and the PCS/PLC
  • Non-volatile memory for configuration and parameter settings
  • Permanently self-monitoring
  • MRP and S2 redundancy
  • HART communication via HART-IP
  • Shared Device und Dynamic Reconfiguration

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of  LB8122A.1.EL

Connectionbackplane bus
Rated voltage12 V DC , only in connection with the power supplies LB9***
Nominal voltage12 V DC ,
Power dissipation4.53 W
Power consumption4.53 W
Fieldbus connection
Fieldbus typePROFINET
Ethernet Interface
Connection typeRJ-45 , via front connector
Transfer rate10BASE-T, 100BASE-TX 100 MBit/s
Station connectiondirectly to PCS or PLC or via hubs or switches
Cable typeSFTP in accordance with ISO/IEC 11801 for Cat 5e or better
Bus lengthmax. 100 m per link
AddressingDHCP, via controller (DCP) or fixed IP address
Ethernet addressIP V4 address (preset: DHCP on, changeable via display)
Supported I/O modulesLB1x01*…LB1x03*, LB1x08*, LB1x09*, LB2x01*…LB2x17*, LB3x01*…LB3x06*, LB4x01*, LB4x02*, LB4x04*…LB4x06*, LB5x01*, LB5x02*, LB5x04*…LB5x06*, LB6x01*, LB6x05*, LB6x06*, LB6x08*, LB6x10*…LB6x17*, LB7x04*
PROFINET conformance classCC B
Internal bus
Connectionbackplane bus
Galvanic isolation
Ethernet/other circuitsbasic insulation according to IEC/EN 61010-1, rated insulation voltage 35 Veff or 50 V DC
RS 485 interface/other circuitsbasic insulation according to IEC/EN 61010-1, rated insulation voltage 35 Veff or 50 V DC
Insulation voltage1500 V AC acc. to IEEE 802.3u
Electrical isolation
Power supply, internal bus/other circuitsbasic insulation according to IEC/EN 61010-1, rated insulation voltage 30 V DC
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013
Degree of protectionIEC 60529
Fieldbus standardIEEE 802.3
Environmental testEN 60068-2-14
Shock resistanceEN 60068-2-27
Vibration resistanceEN 60068-2-6
Damaging gasEN 60068-2-42
Relative humidityEN 60068-2-78
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Storage temperature-25 ... 85 °C (-13 ... 185 °F)
Relative humidity95 % non-condensing
Altitudemax. 2000 m
Shock resistanceshock type I, shock duration 11 ms, shock amplitude 15 g, number of shocks 18
Vibration resistancefrequency range 10 ... 150 Hz; transition frequency: 57.56 Hz, amplitude/acceleration ± 0.075 mm/1 g; 10 cycles
frequency range 5 ... 100 Hz; transition frequency: 13.2 Hz amplitude/acceleration ± 1 mm/0.7 g; 90 minutes at each resonance
Damaging gasdesigned for operation in environmental conditions acc. to ISA-S71.04-1985, severity level G3
Mechanical specifications
Degree of protectionIP20 (module) , mounted on backplane
Connectionvia backplane
Massapprox. 150 g
Dimensions32.5 x 100 x 102 mm (1.28 x 3.9 x 4 inch)
Data for application in connection with hazardous areas
CertificateDEMKO 16 ATEX 1780 X
MarkingEx-Hexagon II 3 G Ex ec IIC T4 Gc
Directive conformity
Directive 2014/34/EUEN IEC 60079-0:2018+AC:2020
EN 60079-7:2015+A1:2018

International approvals
ATEX approvalDEMKO 16 ATEX 1780 X
IECEx approvalIECEx UL 16.0141 X
Approved forEx ec IIC T4 Gc
General information
System informationThe module has to be mounted in appropriate backplanes (LB9***) in Zone 2 or outside hazardous areas. Here, observe the corresponding declaration of conformity.
For use in hazardous areas (e. g. Zone 2, Zone 22 or Div. 2) the module must be installed in an appropriate enclosure.
Supplementary informationEC-Type Examination Certificate, Statement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be observed where applicable. For information see


ECLASS 13.027210121
ECLASS 12.027210121
ECLASS 11.027210121
ECLASS 10.0.127210121
ECLASS 9.027210121
ECLASS 8.027210121
ECLASS 5.127210121
ETIM 9.0EC001485
ETIM 8.0EC001485
ETIM 7.0EC001485
ETIM 6.0EC001485
ETIM 5.0EC001485
UNSPSC 12.139121008

Details: LB8122A.1.EL


The PROFINET gateway is the interface between the I/O modules on the backplane and the control system.

HART communication is via PROFINET or HART-IP.

In addition to the input/output data of the I/O modules, the HART auxiliary variables can also be accessed in the process image.

Informative Literature: LB8122A.1.EL

Language Selection:
LiteratureLanguageFile TypeFile Size
Application Report - Communication Redundancy for Uninterrupted OperationENGPDF529 KB
Application Report - LB and FB Remote I/O Systems for Digitally Connecting Analog Field DevicesENGPDF208 KB
Application Report - Space Saving Extension for Existing PlantsENGPDF300 KB
Application Report - The Modern Whiskey DistilleryENGPDF176 KB
Application Report - Use of Remote I/O in Fluidized Bed SystemsENGPDF222 KB
Application Report - Using Remote I/O Systems for the Efficient Digitalization of PlantsENGPDF371 KB

Product Documentation: LB8122A.1.EL

Language Selection:
Product informationLanguageFile TypeFile Size
Release NoteENGPDF383 KB
Brief Instructions
Configuration instructions STEP 7ENGPDF3870 KB
Configuration instructions TIA PortalENGPDF4041 KB
Safety and Security Documentation
Instruction manualENGPDF173 KB
Hardware Manual LB-Remote-I/O-SystemENGPDF5385 KB
ManualENGPDF5915 KB
Software Information
Software Product Note Remote I/O DTM / Softwareproduktschein Remote I/O DTMALLPDF256 KB

Design / Simulation: LB8122A.1.EL

Language Selection:
CADLanguageFile TypeFile Size

Approvals: LB8122A.1.EL

Language Selection:
CertificatesCertificate No.LanguageFile TypeFile Size
Brasil TUV Rheinland BrazilTÜV 18.0039 XALLPDF1124 KB
Canada, USA UL cULusCoC 20170105 - E106378 RepRef 20161202ALLPDF646 KB
China SITIIAS CCC Ex Certificate2021322310003602 (Mannheim)ALLPDF1085 KB
South Africa MASCMASC MS/20-8438XALLPDF730 KB
Worldwide UL IECEx Certificate of ConformityIECEx UL 16.0141XALLLINK---
Declaration of Conformity
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)DOC-5711ALLPDF1038 KB
UK Declaration of Conformity (P+F) / UK-Konformitäterklärung (P+F)DOC-5704ALLPDF2033 KB

Software: LB8122A.1.EL

Language Selection:
Device Description Files/DriversRelease InfoFile TypeFile Size
CFC Device Driver Blocks for SIMATIC PCS 7 / CFC Device Driver Blocks for SIMATIC PCS 7ZIP15869 KB
Firmware LB/FB PROFINET Gateway LB/FB8x22, V1.3.12 / Firmware LB/FB PROFINET Gateway LB/FB8x22, V1. KB

The new LB/FB PROFINET gateways from Pepperl+Fuchs open the door for IIoT 4.0 applications in process industries.