Serviceline Industrial Sensors
Serviceline Explosion Protection

Base for read/write station U-P3-R4

  • Degree of protection IP67
  • Simple bus system with up to 30 units
  • Serial interface RS 485, addressable

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  U-P3-R4

Product Description
Base with addressable serial Interface RS 485
Indicators/operating means
DIP switchSetting the station address
bus connection
ON = active  OFF = non-active
Electrical specifications
Rated operating voltage20 ... 30 V DC , ripple 10 %SS , PELV
Power consumptionmax. 4 W with read/write head IPT*-FP
Galvanic isolation
Operating voltage/interfacefunctional insulation acc. to DIN EN 50178, rated insulation voltage 50 Veff
Physical RS-485, addressable , up to 30 bases , address 1 ... 30
Transfer rate1200; 2400; 4800; 9600; 19200; 38400 Bit/s
Cable length≤ 1200 m
Ambient conditions
Ambient temperature-25 ... 70 °C (-13 ... 158 °F)
Storage temperature-40 ... 85 °C (-40 ... 185 °F)
Mechanical specifications
Degree of protectionIP67 according to EN 60529 with IPT*-FP
Connectionscrew terminals
Interface cable2 conductor, acc. to RS-485
Supplyup to 3 x 1.5 mm2
Housingdiecast aluminum
Height30 mm
Width80 mm
Length91 mm


ECLASS 13.027280492
ECLASS 12.027280490
ECLASS 11.027280490
ECLASS 10.0.127280490
ECLASS 9.027280490
ECLASS 8.027280490
ECLASS 5.127279212
ETIM 9.0EC002997
ETIM 8.0EC002997
ETIM 7.0EC002997
ETIM 6.0EC002997
ETIM 5.0EC003015
UNSPSC 12.131162301

Details: U-P3-R4


The base is used in combination with an upper part, the IPT*-FP read/write station. An addressable RS 485 interface is available. It is thus possible to create a simple bus connection with up to 30 subscribers.

The address is set and the terminating resistor for the bus is connected via DIP switches.

The read/write station is connected to a higher-order control system via the serial interface and receives the commands for writing and/or reading code or data carriers via this interface.

Product Documentation: U-P3-R4

Language Selection:
Brief InstructionsLanguageFile TypeFile Size
Instruction leaflet / Beipackzettel ALLPDF202 KB
Manual IPTx-FP with U-Px-R4ENGPDF1158 KB

Design / Simulation: U-P3-R4

Language Selection:
CADLanguageFile TypeFile Size
3-D model / 3-D-ModellALLSTP569 KB
CAD Portal / CAD PortalALLLINK---

Approvals: U-P3-R4

Language Selection:
Declaration of ConformityCertificate No.LanguageFile TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-3498BALLPDF107 KB

Associated Products: U-P3-R4

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