CANopen Fiel­dbus Cou­p­ler – HE 5811

Fieldbus coupler with CANopen interface


Transmission of process, parameter and configuration data

multifunctional inputs and outputs

with LED for status indication

Module exchange during operation (live 'hot swap')




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CANopen Fiel­dbus Cou­p­ler HE 5811

HIMOD is an intel­li­gent I/O sys­tem for all com­mon fiel­dbus stan­dards. The fiel­dbus cou­p­ler HE 5811 with a CAN bus inter­face enab­les the trans­mis­sion of pro­cess, para­me­ter and con­fi­gu­ra­tion data. The fiel­dbus con­nec­tion is made on the top of the Bus Cou­p­ler via a Sub-D con­nec­tor. The serial com­mu­ni­ca­tion inter­face allows simple con­nec­tions to hig­her-level con­trol­lers, visua­liz­a­tion tools, etc.


Each func­tion module pro­vi­des pro­cess values to the fiel­dbus cou­p­ler. The built-in module pro­ces­sor relie­ves the fiel­dbus cou­p­ler of mea­su­red value cal­cu­la­ti­ons. The inputs and out­puts are mul­ti­func­tio­nal and require a spe­ci­fi­ca­tion. This is stored in the cou­p­ler and is trans­fer­red when a simi­lar module is repla­ced, even during ope­ra­tion.


In the bus cou­p­ler, the areas of sup­ply vol­tage, fiel­dbus and logic are gal­va­ni­cally iso­la­ted from each other. The sys­tem con­fi­gu­ra­tion con­sis­ting of bus cou­p­ler and I/O modu­les can be quickly deter­mi­ned via the but­ton inte­gra­ted in the front of the housing. Con­fi­gu­ra­tion and para­me­teriz­a­tion of the indi­vi­dual modu­les can be done via the fiel­dbus as well as via the Smart­Port inter­face.


Up to 16 func­tion modu­les can be con­nec­ted and sup­plied to one bus cou­p­ler. The sys­tem struc­ture can be exten­ded by using power sup­ply modu­les:


  • Up to 62 func­tion modu­les can be addres­sed logi­cally by one bus cou­p­ler.
  • Up to 4 instal­la­tion levels can be set up.
  • The maxi­mum exten­sion may be up to 10 m long.


CAN 'Con­trol­ler Area Net­work' CAN is a serial bus sys­tem which ori­gi­nally comes from the auto­mo­tive sec­tor. The signals are trans­mit­ted via a twis­ted pair. The inter­fe­rence immu­nity of CAN net­works is par­ti­cu­larly high due to various mea­su­res, such as CRC checks, use of dif­fe­ren­tial signals, etc. CAN descri­bes the phy­si­cal bus con­cept inclu­ding the data link layer. The app­li­ca­tion layer, i.e. the pro­to­col to be used, is not descri­bed by CAN. The­re­fore, a dis­tinc­tion must be made bet­ween CAN (phy­si­cal bus) and CANopen (pro­to­col, app­li­ca­tion layer).




CANopen describes the standardized use of communication services and thus forms a communication profile. For the user, CANopen has the advantage that devices from different manufacturers can be combined in a CAN network. However, differences may occur in the number of communication objects supported. In contrast to PROFIBUS-DP, CANopen has the advantage of true multi-master capability.

Technical data

HE 5811
Module typeHIMOD field bus cou­p­ler CANopen
Power sup­ply24 V DC (-20 %/+25 %), pro­tec­ted against reverse pola­rity and over­vol­tage
Cur­rent / power con­sump­tionMax. 170 mA / 4 W own requi­re­ments
Power sup­ply for
I/O modu­les
24 V DC (max. 4 A) and 7.5 V DC
(max. 2 A), short-cir­cuit-proof
Num­ber of I/O modu­les that can be cou­pled1...16 or 1…62 with addi­tio­nal power modu­les
Electri­cal iso­la­tion1000 Veff[inter­nal (sup­ply / fi eld bus / logics) / exter­nal]
Con­nec­tions / inter­faces
  CAN-bus  1 x D-SUB con­nec­tor, 9-pin
  Ser­vice / Smart­Port  1 x RJ10, front
   HPR-bus  1 x T-bus con­nec­tor
Sup­ply 24 V DC  1 x screw / plug ter­mi­nal block
  CAN-bus con­nec­tion accord­ing to IEC 11898, CANopen pro­to­col
  Baud rate 20…1000 kbaud, can be set via BCD switch
  Address range: 1…99, can be set via BCD switch
  Address range: 1…126, can be set with soft­ware, if BCD switch = 0
Con­trol ele­ments
Baud rate / addres­ses  3 x BCD rotary coded switch
Node con­fi­gu­ra­tion  1 x but­ton "Con­fig", at the fron
Dia­gnostic dis­play
  5 sta­tus-LEDs  1 x device sta­tus,   4 x bus sta­tus
Wiring tech­ni­queScrew / plug ter­mi­nals, con­duc­tor cross-sec­tion 0.2…2.5 mm²
Weight150 g

Errors and omis­si­ons excep­ted


Data sheet HE 5811 – Ger­man

Data sheet HE 5811 – Eng­lish


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