Serviceline Industrial Sensors
Serviceline Explosion Protection

Com Unit for FOUNDATION Fieldbus Modular I/O LB8110*

  • Interface between the I/O modules and the PCS/PLC
  • Com unit for 20 analog or 40 digital channels
  • Communication via FOUNDATION Fieldbus H1
  • Mounting in Zone 2, Class I/Div.2 or in the safe area
  • HART communication via service bus
  • Configured via the process control system
  • Non-volatile memory for configuration and parameter settings
  • Quick communication set-up
  • Permanently self-monitoring
  • Outputs drive to safe state in case of failures
  • Supports multichannel I/O modules
  • Module can be exchanged under voltage

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, also apply to Pepperl+Fuchs AG.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of  LB8110*

Connectionbackplane bus
Rated voltage5 V DC , only in connection with the power supplies LB9***
Power consumption2 W
Auxiliary energy24 V DC
Trunk load 20 mA
Fieldbus interface
Fieldbus typeFOUNDATION Fieldbus H1
Connectionplug-in screw connector on the backplane
Baud rate31.25 kBit/s , MBP
ProtocolH1 to IEC 1158-2
Station connectiondirectly at the trunk or via spur protector
Number of stations per bus line1 or 2, depending on the required response times
Number of channels per stationmax. 20 analog, max. 40 digital
Supported I/O modules5 slots, to be filled with (combinations possible):
1*08 digital input, 8-channel, NAMUR
3*05 analog input, 4-channel, 20 mA (HART via service bus)
4*05 analog output, 4-channel, 20 mA (HART via service bus)
5*04 Pt100 RTD input, 4-channel
5*05 thermocouple input, 4-channel
6005 relay output, 4-channel, 230 V
6006 relay output, 8-channel, 24 V
6*08 digital output, 8-channel, Ex i
6*10-6*15 digital output, 4-channel, Ex i power
* = variable (0=non-IS, 1=IS)
Bus lengthmax. 1900 m
(must not be exceeded by the sum of all trunk and spur lines)
Spur lengthmax. 120 m
(depending on the number of field devices. Modular I/O station = 1 field device)
Addressingvia PCS (software)
Internal bus
Connectionbackplane bus
LED indicatorLED 1 (power supply): On = operating, fast flash = cold start
LED 2 (collective alarm): On = internal fault, flashing = no fieldbus
LED 3 (operating mode): Flashing = active
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1
Electromagnetic compatibilityNE 21
Degree of protectionIEC 60529
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Storage temperature-25 ... 85 °C (-13 ... 185 °F)
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
CertificatePF 08 CERT 1234 X
MarkingEx-Hexagon II 3 G Ex nA IIC T4 Gc
Directive conformity
Directive 2014/34/EUEN 60079-0:2009
EN 60079-11:2007
EN 60079-15:2010
International approvals
ATEX approvalPF 08 CERT 1234 X
UL approvalE106378
Control drawing116-0321
Approved forcUL (Canada): CL I Zn. 2 IIC; IS circuits for CL I Zn. 0 IIC
ULus (USA): CL I Div. 2 Grp. A, B, C, D; IS circuits for CL I, II, III Div. 1 Grp. A, B, C, D, E, F, G
IECEx approvalBVS 09.0037X
Approved forEx nA IIC T4 Gc
EAC approvalRussia: RU C-IT.MIII06.B.00129
Marine approval
Lloyd Register15/20021
DNV GL MarineTAA0000034
American Bureau of ShippingT1450280/UN
Bureau Veritas Marine22449/B0 BV

Documents: LB8110*

ManualsLanguageFile TypeFile Size
Manual FF ComUnit 8x10ENGPDF1471 KB
Manual LB HardwareENGPDF6465 KB
Handbuch LB-HardwareGERPDF3892 KB
Instruction manuals
ИнструкцииBULPDF0 KB
Návod k poużitíCZEPDF129 KB
Instruktions manualDANPDF128 KB
Instruction manualENGPDF52 KB
KasutusjuhendESTPDF0 KB
KäyttöohjeFINPDF124 KB
BetriebsanleitungGERPDF55 KB
Οδηγίες χρήσηςGREPDF0 KB
HandleidingHOLPDF0 KB
Instruction manual / BetriebsanleitungHRVPDF127 KB
Használati útmutatóHUNPDF130 KB
Lietošanas pamācībaLAVPDF0 KB
Instrukciju vadovasLITPDF128 KB
Instrukcja obsługiPOLPDF130 KB
Manual de instruçõesPORPDF128 KB
Manual de utilizareRONPDF127 KB
Návod na poużitieSLKPDF129 KB
Navodila za uporaboSLVPDF0 KB
ManualSWEPDF127 KB
Product information
Software Product Note Remote I/O DTM / Softwareproduktschein Remote I/O DTMALLPDF256 KB
Supported I/O modulesENGPDF44 KB
Unterstützte E/A-ModuleGERPDF47 KB

Approvals+Certificates: LB8110*

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of Conformity / EU-KonformitätserklärungDOC-0522JPDF76 KB
American Bureau of Shipping (ABS) Marine15-HG1450280-PDAPDF1468 KB
Canada UL cULE106378 cUL (QUZW7)LINK---
DEKRA EXAM IECEx Certificate of ConformityIECEx BVS 09.0037XLINK---
DNV GL MarineTAA0000034PDF90 KB
Europe Pepperl+Fuchs ATEX Category 3 G Certificate of ConformityPF 08 CERT 1234 XPDF1503 KB
Lloyd's Register Marine15/20021PDF2013 KB
Worldwide Fieldbus FoundationIT048400PDF149 KB

Software: LB8110*

Device type managersRelease InfoFile TypeFile Size
DTM Collection Remote IO / DTM Collection Remote IO7.6.6ZIP47702 KB

Associated Products: LB8110*

Matching system components
Max. 5 slots for I/O modules (dual width only), For FOUNDATION Fieldbus H1, Backplane for LB-System, Mounting in Zone 2, Class I/Div.2 or in the safe areapa
For Remote I/O systems, Frame application, like e. g. PACTware, must be installed separatelypa

Function: LB8110*

The FOUNDATION Fieldbus com unit forms the interface between the I/O modules on the backplane and the process control system.

It supports only dual width I/O modules. Thereby signals from NAMUR sensors, mechanical contacts, high-power solenoid drivers, power relays, sounders, and alarm LEDs are transported to the higher-level bus system.

The com unit can be easily configured via DTM and supports HART.