ABB ACS550 Series Quick start guide

Quickstart Guide

ABB PLC and drives integration using Modbus RTU



Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRTU‐2‐ PLCanddrivesintegration

Contents



Introduction...................................................................................................................................................................4

Safetyinstructions .........................................................................................................................................................4

Limitations .....................................................................................................................................................................4

Fieldbusgrounding ....................................................................................................................................................6

Fieldbusshield ...........................................................................................................................................................6

Endtermination.........................................................................................................................................................6

Pullup/pulldownresistors........................................................................................................................................6

Driveswithembeddedfieldbus.................................................................................................................................7

FieldbusmodulesforABBdrives...............................................................................................................................8

Commonrecommendations......................................................................................................................................8

ABBcableTK505........................................................................................................................................................9

AC500COM1–Masteratthebuslineend .........................................................................................................11

AC500COM2–Masteratthebuslineend .........................................................................................................11

AC500‐eCoCOM1–Masteratthebuslineend..................................................................................................11

AC500‐eCoCOM2–Masteratthebuslineend..................................................................................................12

Driveconfiguration......................................................................................................................................................13

StartingupACS310driveswithembeddedModbusRTU .......................................................................................14

StartingupACS355driveswithFMBA‐01ModbusRTUadapter ............................................................................15

StartingupACS800driveswithRMBA‐01ModbusRTUadapter............................................................................17

StartingupACS850,ACQ810driveswithembeddedModbusRTU ........................................................................18

StartingupACS880driveswithFSCA‐01ModbusRTUadapter..............................................................................19

StartingupACSM1driveswithFSCA‐01ModbusRTUadapter ..............................................................................20

Installdriveslibrary .................................................................................................................................................21

ControlBuilderPlusforPLCandDrives.......................................................................................................................22

Hardwareconfiguration ..........................................................................................................................................22

IPconfigurationofCPU(forEthernetconnectionbetweenPCandPLC) ...............................................................24

CODESYS ..................................................................................................................................................................25

CODESYStabs ......................................................................................................................................................25

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Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRTU‐3‐ PLCanddrivesintegration

LibraryManager ..................................................................................................................................................26

PLClogic...............................................................................................................................................................27

DownloadprogramtoPLC...................................................................................................................................32

Createbootproject .............................................................................................................................................33

Testtheprogram .................................................................................................................................................34

ReadandwritemoredatabetweenPLCanddrive(optional) ............................................................................36

Visualizations.......................................................................................................................................................43

Addmoredrives(optional)..................................................................................................................................46

Actualizationrate ................................................................................................................................................47

Otherusefuldocumentation.......................................................................................................................................47

Revision .......................................................................................................................................................................47



Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRTU‐4‐ PLCanddrivesintegration

Introduction

Thisguid e willtakeyouthroughthehardwareinstallationandconfigurationofABBACSDrivesandPLCinorderto

prepare for Modbus RTU control. ABB‐specific ready‐made function blocks and visualizations from the PS553‐

DRIVES library willbe used for thecontrol ofthe drives. While theguide is applicable to all AC500 PL

Cs and all

ModbusRTUcompatibleABBACSdrives,theexampleisbuiltupwithanAC500‐eCoPLCandanACS355drive.

Note! The ma

terial in this application might need to be adapted according to actual equipment and func tion

beforeitisused.Testingoftheeq

uipmentmustalwaysbeperformedbytheresponsiblestart‐uppersonaccording

to current legislation before the equipment is placed in service. ABB does not take any responsibility for possible

damagecausedbyusingthematerialinthisapplication(shownexamples,data,projecttools,etc.).

Safetyinstructions

Followallsafetyinstructionsdeliveredwiththeusedcomponents:

 Readthecompletesafetyinstructionsfortheuseddrivebeforeyouinstall,commissionorusethedrive.

Thecompletesafetyinstructionsaregivenatthebeginningofthedrivesuser’smanual(e.g.forACS355:

3AUA0000066143[English]).

 Read all safety and install

ation instructions of the used PLC. See the online help in CoD eSys (Help→

Contents→TargetSystem→AC500/S500→Introduction→Overview→Regulations).

Limitations

Thefollowinglimitationsarevalidforthisguide:

 General

o AllinstructionsinthisguidearebasedondefaultsettingsinPLCanddrives

o PS501ControlBuilderPlusversion2.2.0orlater

o ThedrivemustbeequippedwithembeddedModbusRTUoraModbusRTUadapter

 FunctionblockandvisualizationlibraryPS553‐DRIVEScompatibili

ty

o Communicationprofile:ABBdrives

o Drivetypes:AllModbusRTUcompatibleABBACSdriv es

o Applicationtypes:Speed/FrequencycontrolorTorquecon trol



Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRTU‐5‐ PLCanddrivesintegration

Setupexample



ControlBuilderPlus









AC500PLC

ABBACSDrives

ETHERNETor

serialconnection

ModbusRTU

ABBModbus

RTUmodules

orembedded



Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRTU‐6‐ PLCanddrivesintegration

Hardwarephysicalconnection

Inthefollowingchapter,physicalconnectionofthehardwarewillbeexplained.

Fieldbusgrounding

For AC500, which has opto‐isolated COM interfaces, it is recommended not to connect the ground. For AC500‐

eCo, where the COM interfaces are not opto‐isolated, it is recommended to connect the ground at one place,

typicallyinthebusmaster.Forconnectionexamples,seechapter“Installationexamples”.

Fieldbusshield

TheshieldshouldalwaysbeconnectedinaModbusRTUline.ThepurposeoftheshieldistoprotectagainstEMC

disturbancesandreflectiononthebusline.Forconnectionexamples,seechapter“Installationexamples”.

Endtermination

 Purpose:Toavoidsignalreflections.

 Resistorsize:120Ohms,¼W.

 Wheretoconnect:Oneresistorineachendofthebusline(firstandlastnode).

Pullup/pulldownresistors

 Purpose:Tokeepadefinedhighlevelonthebuswhilethereisnodataexchange.

 Resistor size: Depends on bus master (COM) voltage level. 470Ωfor AC500 (5 V output) and 270Ωfor

AC500‐eCo(3.3Voutput).

 Wheretoconnect:Activatepull‐upandthepu ll‐dow

nresistors,butonly onceoneverybus line,atthebus

master.



Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRTU‐7‐ PLCanddrivesintegration

AC500andAC500eCoCOMportoverview

 AC500 AC500‐eCo CM574‐RS

 COM1 COM2 COM1 COM2

(optional)

COM1=COM2

(seeCOM1of

AC500,exceptpull‐

up/pull‐down)

COMVoltagelevel 5V 5V 3,3V 3,3V 5V

Opto‐isolated

(electricallyisolated)

YES YES NO

optional*)

NO YES

Maximumbuscable

length

Acc.toRS485

standard

Acc.toRS485

standard

50m

*)Accto

RS485

standard

50m Acc.toRS485

standard

Connection Terminal 9poleD‐sub 9poleD‐sub

*)Terminal

Terminal Terminal

Terminationresistor

built‐in

NO NO NO NO NO

Terminationresistor

size

120Ω 120Ω 120Ω 120Ω 120Ω

Pull‐up/pull‐down

resistorsbuilt‐in

YES(connect

withbridges)

NO NO

*)yesconnect

withbridges

YES(connect

withbridges)

YES(connectwith

bridges)

Pull‐up/pull‐down

resistorsize

470Ω 470Ω 270Ω 270Ω 475Ω

Pull‐up/pull‐down

resistorsconnection

point

Master(CPU)

COMport

Master(CPU)

COMport

Master(CPU)

COMport

Master

(CPU)COM

port

Master(CPU)COM

port

Pull‐up/pull‐down

connection

Bridges:1to

2and3to4

External470

Ωresistors

External270Ω

resistors

Bridges:1to

2and3to4

Bridges:1to2and3

to4

*)usingTK506RS485isolatorforPM554/PM564withindexA3andhigher

Driveswithembeddedfieldbus

ThefollowingABBdriveshaveModbusRTUembedded:

 ACS310

 ACS/ACH550

 ACS850

Since the built‐in end termination of the drive automatically also activates pull‐up/pull‐down resistors, it is

recommendedtoskipthebuilt‐inoption.

Itis  recommended to connect a separateendtermination resistor to the first node (i

.e.thePLC COM interface)

andthelastnode(i.e.thelastdriveonthebus).

Forconnectionexamples,seechapter“Installationexamples”.



Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRTU‐8‐ PLCanddrivesintegration

FieldbusmodulesforABBdrives

The following ABB drives Modbus RTU modules have an option to activate built‐in end termination and pull‐

up/pull‐downresistors.

 RMBA‐01(usedwithforinstanceACS550andACS800)

 FSCA‐01(usedwithforinstanceACS880andACSM1)

ThefollowingABBdrivesModbusRTUmoduledoesnothaveanoptiontoactivatebuil

t‐inendresistorsincluding

pull‐up/pull‐downresistors.

 FMBA‐01(usedwithforinstanceACS355)

Since the built‐in end termination of the modules (RMBA‐01 and FSCA‐01) automatically also activates pull‐

up/pull‐downresistors,itisrecommendedtoskipthebuilt‐inoption.

Itis  recomm

ended to connect a separateendtermination resistor to the first node (i.e. the PLC COMinterface)

andthelastnode(i.e.thelastdriveonthebus).

Forconnectionexamples,seechapter“Installationexamples”.



Commonrecommendations

Note!Thefollowingbulletsareonlyrecommendationsandnogeneralrules.

 Installationwheretotalcablelengthismorethan50 m

o UseCPUAC500ratherthanAC500‐eCoorAC500‐eCowithTK506RS485isolatorforCOM1.

 Installationwherethereisariskthatgroundconnectionsindiffer

entnodescouldvaryinvoltagepotential

(typicallyinshipinstallationsorwithcablelengthsmorethan50m).

o UseCPUAC500anddonotconnectgroundcable,onlyshield →2‐wiresolution,oruseAC500‐eCo

withTK506RS485isolatorforCOM1.

 WhenAC500‐eCoisused

o Use of 3‐wire conne

ction is recommended because the COM interface is not opto‐isolated,

oruseAC500‐eCowithTK506RS485isolatorforCOM1.

o Use of cable length more than 50m should be realized with repeaters,

oruseAC500‐eCowithTK506RS485isolatorforCOM1.

 Cabletyp

e

o Use only cables with twisted pair wires and braided shields. Foil shields are not robust enough,

cannotbecontactedwellandhavepoorHF(HighFrequency)properties.

o Groundthecableshield directlywithaclipwhenenteringtheswitch‐gearcabinet.Donotcutthe

shieldun

tilthecablereachestheconnectedmodule. 

o TheconnectionbetweenthePEbarandtheshieldbarmusthavelowimpedance.

o UseABBcableTK505whensuitableforeasyinstallation.



Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRTU‐9‐ PLCanddrivesintegration



Busline

Construction 2cores,twisted,withcommonshield

Conductorcrosssection >0.22mm

(24AWG)

‐recommendation 0.5mm

correspondstoØ0.8mm

Twistingrate <10/meter(symmetricallytwisted)

Coreinsulation Polyethylene(PE)

Resistancepercore <100Ω/km

Characteristicimpedance Appr.120Ω(100…150Ω)

Capacitancebetweenthecores <55nF/km(ifhigher,thenmaxbuslength

mustbereduced)

Terminatingresistors 120Ω,¼Watbothlineends

Remarks CableswithPVCcoreinsulationandacore

diameterof0.8mmcanbeuseduptoa

lengthofappr.250m.Inthiscase,thebus

terminatingresistorisappr.100Ω.



ABBcableTK505

ForaneasyModbusins tallationintheCPUend,thepre‐madeABB cableTK505canbeused.Itincludesa9poleD‐

sub contact with built‐in end termination (120Ω) and pull‐up/pull‐down resistors (2*270Ω). This contact is

suitablefor AC500‐eCo COM1. Itcan also be usedfor AC500 COM2 (eventhoughanother voltagele

velis used),

butonlyiftheGNDwireisnotconnectedtotheModbusslaves(2‐wiresolution, preferred forAC500COMports).



Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRTU‐10‐ PLCanddrivesintegration

Installationexamples

Bestconnectionofshieldistoconnectdirectlytothemountingplateofthecabinetasnearaspossibletothe

AC500.Themountingplatehastobeconnectedtocommonearthinthecabinetatonepoint.

 or 



Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRTU‐11‐ PLCanddrivesintegration

AC500COM

1–Masteratthebuslineend



AC500COM

2–Masteratthebuslineend



AC500eC

oCOM1–Masteratthebuslineend



Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRTU‐12‐ PLCanddrivesintegration



AC500eC

oCOM2–Masteratthebuslineend



Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRTU‐13‐ PLCanddrivesintegration

Driveconfiguration

DriveswithoutembeddedModbusRTUneedtobeequippedwithModbusRTUadapteraccordingtoactualdrive

type.

ThefollowingdriveconfigurationstepswilladaptthedrivetoModbusRTUcontrolbasedonABB‐specificdrives

libraryPS553‐DRIVES.

Driveparameterscanbesetfromthedrive’scontrolpanelorfromdrive‐specificpctool(Dri

veWindowLightfor

ACS355andACS550,DriveStudioforACS850andACSM1,DriveComposerforACS880andDriveWindowfor

ACS800).

Note!Allpar

ametersettingsarebasedondrivedefaultsettings.Ifthedrive hasbeenparameterizedpreviously,

returntodefaultsettingsbeforecontinuing.Itcanbedoneby:

 Changingma

cro(andthenchangingbackagain)inparameter99.02forACS310,ACS355andACS550.

 Settingparameter99.03APPLICRESTOREtoYESinACS800.

 Settingparameter16.04ParamrestoretoRestoredefsinACS850andACSM1.

 Settingparameter96.06ParameterrestoretoRestoredefaultsinACS880.



Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRTU‐14‐ PLCanddrivesintegration



StartingupACS310driveswithembeddedModbusRT

U

Minimumrequiredparametersettings(basedonfactorydefaultsettings)

Parameter Description Setting Comment

98.02 COMMPROTSEL STD

MODBUS

Activatesfieldbuscommunication

53.02 EFBSTATIONID [Address] ModbusRTUnodeaddressofthedrive

53.03 EFBBAUDRATE 19.2kbit/s

(example)

Transferrateofthelink.Samebaudratemustbe

definedintheModbusRTUmaster.

53.04 EFBPARITY 8NONE1

(example)

Parityandstopbits.Sameparityandstopbitsmust

bedefinedintheModbusRTUmaster.

53.05 PROFILE ABBDRV

FULL

Communicationprofile“ABBDrives”

Drivepowerdownandpowerupforthenewfieldbussettingstotakeeffect!

10.01 EXT1COMMANDS COMM Fieldbusinterfaceassourceforstartandstop

11.02 EXT1/EXT2SEL COMM FieldbusinterfaceassourcetoswitchtoEXT2

11.03 REF1SELECT COMM Fieldbusinterfaceassourceforspeedreference

16.04 FAULTRESETSEL COMM Fieldbusinterfaceassourceforfaultreset



Optionalparameterse

ttings

30.18 COMMFAULT

FUNC

[optional] Howthedrivereactstoafieldbuscommunication

break.

30.19 COMMFAULTTIME [optional] Timebetweencommunicationbreakdetectionand

theselectedaction.

(11.05) REF1MAX [Scalemax] Maxspeed/frequencyscalingvalue(usedinfunction

block/visualizationinput“SPEED_REF_MAX”).Must

belessorequaltodriveparametermax

speed/frequency.



Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRTU‐15‐ PLCanddrivesintegration



StartingupACS355driveswithFMBA01ModbusRT

Uadapter

Minimumrequiredparametersettings(basedonfactorydefaultsettings)

Parameter Description Setting ApplicMacro

”AC500

MODBUS”*)

Comment

98.02 COMMPROTSEL STD

MODBUS

STD

MODBUS

Activatesfieldbusmodule

53.02 EFBSTATIONID [Address] 2 ModbusRTUnodeaddressofthedrive

53.03 EFBBAUDRATE 19.2kbit/s

(example)

19.2kbit/s Transferrateofthelink.Samebaudratemust

bedefinedintheModbusRTUmaster.

53.04 EFBPARITY 8NONE1

(example)

8NONE1 Parityandstopbits.Sameparityandstopbits

mustbedefinedintheModbusRTUmaster.

53.05 PROFILE ABBDRV

FULL

ABBDRV

FULL

Communicationprofile“ABBDrives”

53.10 ActualSpeed 101 101 Actualspeedfeedback

53.11 ActualValue2 105 303 Actualvalue2(e.gtorque105)(303=Status

Word1)

Drivepowerdownandpowerupforthenewfieldbussettingstotakeeffect!

10.01 EXT1COMMANDS COMM COMM Fieldbusinterfaceassourceforstartandstop

11.02 EXT1/EXT2SEL COMM COMM FieldbusinterfaceassourcetoswitchtoEXT2

11.03 REF1SELECT COMM COMM Fieldb usinterfaceassourceforspeed

reference

16.04 FAULTRESETSEL COMM COMM Fieldbusinterfaceassourceforfaultreset



Optionalparameterse

ttings

30.18 COMMFAULT

FUNC

[optional]

FAULT

Howthedrivereactstoafieldbus

communicationbreak.

30.19 COMMFAULTTIME [optional] Default:.3s Timebetweencommunicationbreakdetection

andtheselectedaction.

(11.05) REF1MAX [Scalemax] Maxspeed/frequencyscalingvalue(usedin

functionblock/visualizationinput

“SPEED_REF_MAX”).Mustbelessorequalto

driveparametermaxspeed/frequency.

*)inPar.99.02theApplicationMacrocanbesetto“AC500Modbus(10)”thentheparametersareautomatically

setasshown.



Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRTU‐16‐ PLCanddrivesintegration

StartingupACS550withembeddedModbusRTU

Minimumrequiredparametersettings(basedonfactorydefaultsettings)

Parameter Description Setting Comment

98.02 COMMPROTSEL EXTFBA Activatesfieldbuscommunication

53.02 EFBSTATIONID [Address] ModbusRTUnodeaddressofthedrive

53.03 EFBBAUDRATE 19.2kbit/s

(example)

Transferrateofthelink.Samebaudratemustbe

definedintheModbusRTUmaster.

53.04 EFBPARITY 8NONE1

(example)

Parityandstopbits.Sameparityandstopbitsmust

bedefinedintheModbusRTUmaster.

53.05 PROFILE ABBDRV

FULL

Communicationprofile“ABBDrives”

Drivepowerdownandpowerupforthenewfieldbussettingstotakeeffect!

10.01 EXT1COMMANDS COMM Fieldbusinterfaceassourceforstartandstop

11.02 EXT1/EXT2SEL COMM FieldbusinterfaceassourcetoswitchtoEXT2

11.03 REF1SELECT COMM Fieldbusinterfaceassourceforspeedreference

16.04 FAULTRESETSEL COMM Fieldbusinterfaceassourceforfaultreset



Optionalparameterse

ttings

30.18 COMMFAULT

FUNC

[optional] Howthedrivereactstoafieldbuscommunication

break.

30.19 COMMFAULTTIME [optional] Timebetweencommunicationbreakdetectionand

theselectedaction.

(11.05) REF1MAX [Scalemax] Maxspeed/frequencyscalingvalue(usedinfunction

block/visualizationinput“SPEED_REF_MAX”).Must

belessorequaltodriveparametermax

speed/frequency.



Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRT

U‐17‐ PLCanddrivesintegration

StartingupACS800driveswithRMBA01ModbusRTUadapter

Minimumrequiredparametersettings(basedonfactorydefaultsettings)

Parameter Description Setting Comment

98.02 COMM.MODULE

LINK

STD

MODBUS

Activatesfieldbusmodule

98.07 COMMPROFILE ABBDRIVES Communicationprofile“ABBDrives”

52.01 STATION

NUMBER

[Address] ModbusRTUnodeaddressofthedrive

52.02 BAUDRATE 19.2kbit/s

(example)

Transferrateofthelink.Samebaudratemustbe

definedintheModbusRTUmaster.

52.03 PARITY NONE1STO

PBIT

(example)

Parityandstopbits.Sameparityandstopbitsmustbe

definedintheModbusRTUmaster.

Drivepowerdownandpowerupforthenewfieldbussettingstotakeeffect!

10.01 EXT1

STRT/STP/DIR

COMM.CW Fieldbusinterfaceassourceforstartandstop

11.02 EXT1/EXT2

SELECT

COMM.CW FieldbusinterfaceassourcetoswitchtoEXT2control

location

11.03 EXTREF1SELECT COMM.REF Fieldbusinterfaceassourceforspeedreference

16.04 FAULTRESETSEL COMM.CW Fieldbusinterfaceassourceforfaultreset

92.02 MAINDSACT1 102 Actualspeedvaluetake nfr om01.02

92.02 MAINDSACT2 e.g.105 Actualvalue2.E.gtorquetakenfrom01.05



Optionalparameterse

ttings

30.18 COMMFLTFUNC [optional] Howthedrivereactstoafieldbuscommuni cation

break.

30.19 MAINREFDST‐

OUT

[optional] Timebetweencommunicationbreakdetectionandthe

selectedaction.

(11.05) EXTREF1

MAXIMUM

[Scalemax] Maxspeed/frequencyscalingvalue(usedinfunction

block/visualizationinput“SPEED_REF_MAX”).Mustbe

lessorequaltodriveparametermaxspeed/frequency.



Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRT

U‐18‐ PLCanddrivesintegration

StartingupACS850,ACQ810driveswithembeddedModbusRTU

Minimumrequiredparametersettings(basedonfactorydefaultsettings)

Parameter Description Setting Comment

50.15 Fbcwused P.02.36 SelectstheaddressofthefieldbusControlWordin

use.

58.01 Protocolenasel ModbusRTU Initializesembeddedfieldbuscommunication.

Drive‐to‐drivelinkoperation(parametergroup

57)isautomaticallydisabled.

58.03 Nodeaddress [Address] ModbusRTUnodeaddressofthedrive

58.04 Baudrate 19.2kbit/s

(example)

Transferrateofthelink.Samebaudratemustbe

definedintheModbusRTUmaster.

58.05 Parity 8none1

(example)

Parityandstopbits.Sameparityandstopbitsmust

bedefinedintheModbusRTUmaster.

58.06 Controlprofile ABBClassic Communicationprofile“ABBDrives”

58.10 Refreshsettings [optional] Refreshesthesettingsofparameters

58.01…58.09.

10.01 Ext1startfunc FB Fieldbusinterfaceassourceforstartandstop

12.01 EXT1/EXT2SEL P.02.36bit

15

FieldbusinterfaceassourcetoswitchtoEXT2

controllocation

21.01 Speedref1sel EFBref1 Fieldbusinterfaceassourceforspeedreference

10.10 Faultresetsel P.02.36bit8 Fieldbusinterfaceassourceforfaultreset



Optionalparameterse

ttings

58.07 Commlosstout [optional] DefinesthetimeoutlimitfortheEFB

communicationmonitorin g.

58.08 Commlossmode Noneor

AnyMessage

Enables/disablesEFBcommunicationloss

monitoringanddefinesthemeansforresetting

thecounterofthecommunicationlossdelay.

58.09 Commlossaction [optional] DefinesthedriveoperationaftertheEFB

communicationlossmonitoringawakes.

58.10 Refreshsettings [optional] Refreshesthesettingsofparameters

58.01…58.09.

(19.01) Speedscaling [Scale max] Maxspeed/frequencyscalingvalue(usedinfunction

block/visualizationinput“SPEED_REF_MAX”).Must

belessorequaltodriveparametermax

speed/frequency.



Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRT

U‐19‐ PLCanddrivesintegration

StartingupACS880driveswithFSCA01ModbusRTUadapter

Minimumrequiredparametersettings(basedonfactorydefaultsettings)



Parameter Description Setting Comment

50.01 FBAAenable Enable Activatesfieldbusmodule

51.02 PROTOCOL/PROFIL

E

ABBDrives

Classicor

Enhanced

Communicationprofile“ABBDrives”

51.03 STATIONID [Address] ModbusRTUnodeaddressofthedrive

51.04 BAUDRATE 19.2kbit/s

(example)

Transferrateofthelink.Samebaudratemustbe

definedintheModbusRTUmaster.

51.05 EFBPARITY 8NONE1

(example)

Parityandstopbits.Sameparityandstopbits

mustbedefinedintheModbusRTUmaster.

52.02 FBAdatain2 Act116bit(5) ActualspeedasDataWord2fromthedrive

53.02 FBAdataout2 Ref116bit(2) SpeedreferenceasDataWord2tothedrive

51.27 FBAparrefresh Configure Updatesfieldbussettings(groups50to57)

19.11 Ext1/Ext2selection McwBit11

(06.01)

FieldbusinterfaceassourcetoswitchtoEXT2

controllocation

20.01 Ext1commands FieldbusA Fieldbusinterfaceassourceforstartandstop

20.02 Ext1starttrigger Level TodirectlyrestartafterCoastStop(Off3)

22.11 Speedref1

selection

FBAref1 Fieldbusinterfaceassourceforspeedreference

31.11 Faultreset

selection

P.06.01bit7 Fieldbusinterfaceassourceforfaultreset



Optionalparameterse

ttings

50.02 FBAAcommloss

func

[optional] Definesthedriveoperationafterthe

communicationlossmonitoringawakes.

51.06 MODBUSTIMEOUT [optional] Timebetweencommunicationbreakdetection

andtheselectedaction.1=100ms.

51.07 TIMEOUTMODE CONTROL

WRITE

Howthedrivereactstoafieldbuscommunication

break.

51.27 FBAPARREFRESH REFRESH Updatesfieldbussettings(groups50to53)

(46.01) Speedscaling [Scale max] Maxspeed/frequencyscalingvalue(usedin

functionblock/visualizationinput

“SPEED_REF_MAX”).Mustbelessorequaltodrive

parametermaxspeed/frequency.



Quickstart Guide



ABB PLC and drives integration using Modbus RTU



ModbusRTU‐20‐ PLCanddrivesintegration



StartingupACSM1driveswithFSCA01Modb

usRTUadapter



Minimumre

quiredparametersettings(basedonfactorydefaultsettings)

Parameter Description Setting Comment

50.01 FBAENABLE Enable Activatesfieldbusmodule

51.02 PROTOCOL/PROFILE ABBDrives

Classic

Communicationprofile“ABBDrives”

51.03 STATIONID [Address] ModbusRTUnodeaddressofthedrive

51.04 BAUDRATE 19.2kbit/s

(example)

Transferrateofthelink.Samebaudratemustbe

definedintheModbusRTUmaster.

51.05 EFBPARITY 8NONE1

(example)

Parityandstopbits.Sameparityandstopbits

mustbedefinedintheModbusRTUmaster.

52.01 FBADATAIN1 4 StatuswordasDataWord1fromthedrive

52.02 FBADATAIN2 5 ActualspeedasDataWord2fromthedrive

53.01 FBADATAOUT1 1 ControlwordasDataWord1tothedrive

53.02 FBADATAOUT2 2 SpeedreferenceasDataWord2tothedrive

51.27 FBAPARREFRESH REFRESH Updatesfieldbussettings(groups50to53)

10.01 EXT1STARTFUNC FBA Fieldbusinterfaceassourceforstartandstop

12.01 EXT1/EXT2SEL P.02.12bit15 FieldbusinterfaceassourcetoswitchtoEXT2

controllocation

24.01 SPEEDREF1SEL FBAREF1 Fieldbusinterfaceassourceforspeedreference

10.08 FAULTRESETSEL P.02.12bit8 Fieldbusinterfaceassourceforfaultreset



Optionalparameterse

ttings

51.06 MODBUSTIMEOUT [optional] Timebetweencommunicationbreakdetection

andtheselectedaction.1=100ms.

51.07 TIMEOUTMODE CONTROL

WRITE

Howthedrivereactstoafieldbuscommunication

break.

50.02 COMMLOSSFUNC [optional] Definesthedriveoperationafterthe

communicationlossmonitoringawakes.

51.27 FBAPARREFRESH REFRESH Updatesfieldbussettings(groups 50to53)

(25.02) SPEEDSCALING [Scalemax] Maxspeed/frequencyscalingvalue(usedin

functionblock/visualizationinput

“SPEED_REF_MAX”).Mustbelessorequaltodrive

parametermaxspeed/frequency.



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ABB ACS550 Series, ACQ810, ACS 800 Series, ACS310, ACS355 series, ACS850 series, ACS880 Series, ACSM1 Series Quick start guide

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