Modbus questions & answers - Control Systems Application and Knowledge Store

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Error when reading from RVG200 recorder via Modbus/TCP

Asked 1 day ago by mschori Rank: 6472

DCS in general > Communication > Modbus > Modbus TCP

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answer

0

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45

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Modbus TCP problems in Freelance 2016

Commented 2 days ago by umn Rank: 1484

Freelance > Engineering, DCS in general > Communication > Modbus > Modbus TCP

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27

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MODBUS TCP/IP between two PLC's AC500 V3, ETHx_MOD_MAST function block with code of error unknown (256)

Commented 2 days ago by ak Rank: 200

PLC Automation > AC500 > _Other, DCS in general > Communication > Modbus > Modbus TCP

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0

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59

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How to configure PM583 COM2 port with multi-access for modbus-rtu & online access in CoDeSys?

Answered 13 days ago by GeekSquad13 Rank: 4950

DCS in general > Communication > Modbus > Modbus RTU

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57

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How to read INPUT REGISTER address of a modbus slave device through COM_MOD_MAST.

Answered 20 days ago by ak Rank: 200

PLC Automation > AC500-eCo > _Other, DCS in general > Communication > Modbus

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40

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ModbusTCP MBConn Error Code -7004

Commented 21 days ago by michelle.lim Rank: 1103

DCS in general > Communication > Modbus > Modbus TCP, 800xA > AC 800M > CI86x modules > CI867 (Modbus TCP)

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answer

0

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84

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I noticed you're a top rankd expert and I'm in dire need of help. Modbus TCP/IP Registers

Commented 1 month ago by anthony.valverde Rank: 1449

PLC Automation > AC500 > I/O modules, DCS in general > Communication > Modbus > Modbus TCP

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answer

0

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65

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ABB Videographic Recorder Not working with Modbus TCP/IP

Commented 5 months ago by jorge.garcia Rank: 4885

DCS in general > Communication > Modbus > Modbus TCP

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answers

1

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80

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ci867 Ethernet card with ethernet to rs 485 converter

Answered 5 months ago by hpg Rank: 96

DCS in general > Communication > Modbus > Modbus TCP, 800xA > AC 800M > CI86x modules > CI867 (Modbus TCP)

2

answers

1

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16

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Transfer some reading via FI820F Card

Answered 6 months ago by Reda Rank: 163

Freelance, DCS in general > Communication > Modbus

1

answer

0

votes

57

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Configure AC450 as a modbus slave with CI532

Answered 6 months ago by WvanWees AKS expert

Rank: 7

DCS in general > Communication > Modbus > Modbus RTU

1

answer

1

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124

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How to read 64bit data from modbus reciving 2 registers with dint ?

Commented 7 months ago by kamil.herman Rank: 28

800xA > AC 800M > _Other, DCS in general > Communication > Modbus

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0

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102

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read separate registers in modbus

Commented 7 months ago by Tomas Rank: 512

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Communication > Modbus

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answer

0

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137

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Modbus TCP Connection Down -7001

Answered 8 months ago by Kornelo Rank: 476

DCS in general > Communication > Modbus > Modbus TCP, 800xA > AC 800M > CI86x modules > CI867 (Modbus TCP)

1

answer

0

votes

42

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Need configuration settings for Modbus in S+ Operations 2.0.4

Answered 8 months ago by frqahmed Rank: 453

DCS in general > Communication > Modbus > Modbus TCP, Symphony Plus

3

answers

0

votes

45

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I need read 3 value from each slave from existing protocol

Answered 8 months ago by inammel Rank: 61

PLC Automation, DCS in general > Communication > Modbus, DCS in general > Communication > Modbus

1

answer

0

votes

80

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How to set up CI867 to third part device?

Answered 9 months ago by kstoilov AKS expert

Rank: 5

DCS in general > Communication > Modbus > Modbus TCP, 800xA > AC 800M > CI86x modules > CI867 (Modbus TCP)

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answers

0

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50

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Socket programming(tcp/ip) in automation builder 2.0 ,ac-500,PM583

Asked 9 months ago by nynarkumar Rank: 910

PLC Automation > AC500 > Applications > High Availability, DCS in general > Communication > Modbus > Modbus TCP

1

answer

0

votes

31

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Modbus communication between PLC and PIC32MX problem

Answered 10 months ago by Titus AKS expert

Rank: 6

PLC Automation > _Other, DCS in general > Communication > Modbus

1

answer

0

votes

27

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Modbus issues after upgrade of Freelance (v8.1 -> 2016)

Answered 8 months ago by DanoGeorge Rank: 2978

Freelance, DCS in general > Communication > Modbus

5

answers

0

votes

267

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Problem about Modbus communication between AC800M PM856 COM3 and RS485 2 WIRE

Answered 10 months ago by Kevin.zhu Rank: 2590

800xA > AC 800M > Processor modules > PM85x, DCS in general > Communication > Modbus > Modbus RTU

3

answers

0

votes

132

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AC500 MODBUS on PM564 com2

Answered 1 year ago by rahilmohammed Rank: 57

PLC Automation > AC500, DCS in general > Communication > Modbus > Modbus RTU

1

answer

0

votes

69

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AC500 Modbus Master Receiver to variable %MW0.X

Answered 1 year ago by kstoilov AKS expert

Rank: 5

PLC Automation > AC500 > _Other, DCS in general > Communication > Modbus

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answer

0

votes

53

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Ref542plus => Modbus board

Answered 1 year ago by ATP AKS expert

Rank: 25

Distribution Automation > Feeder protection & control > REF 54x series, DCS in general > Communication > Modbus > Modbus RTU

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answers

0

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25

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Modbus Registers in RVG200

Asked 1 year ago by algarellano Rank: 2467

DCS in general > Communication > Modbus > Modbus RTU

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answers

0

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24

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Connecting aztec600(profibus slave) to gateway(profibus-modbus) to rvg200(modbus master)

Commented 1 year ago by Emil Lopez Rank: 2025

DCS in general > Communication > Modbus > Modbus RTU

2

answers

4

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1226

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Termination resistor for modbus rtu

Commented 1 year ago by arunvt1992 Rank: 676

DCS in general > Communication > Modbus > Modbus RTU

1

answer

0

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54

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REF542 ModbuS and AC800M

Commented 1 year ago by MAHBOUB-MANAF Rank: 1467

DCS in general > Communication > Modbus > Modbus TCP, Power Automation > Protection & control IEDs > _Other

1

answer

1

votes

81

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AC500 MODBUS RTU ERROR 3003

Commented 1 year ago by arunvt1992 Rank: 676

DCS in general > Communication > Modbus > Modbus RTU, PLC Automation > AC500 > CI modules > CI521, CI522 (Modbus TCP)

3

answers

0

votes

683

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AC500 Modbus RTU Slave, adresses for input/output

Commented 1 year ago by kstoilov AKS expert

Rank: 5

PLC Automation > AC500 > _Other, DCS in general > Communication > Modbus

1

answer

0

votes

202

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Modbus TCP Communication between Freelance 2013 AC700F and SM500F

Commented 1 year ago by Achim Briss Rank: 2701

DCS in general > Communication > Modbus > Modbus TCP, Freelance > Controllers > AC 700F

1

answer

0

votes

422

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Communicate PM573-ETH PLC with PSTX Softstarter over Modbus RS485

Commented 1 year ago by kstoilov AKS expert

Rank: 5

PLC Automation > AC500 > Processor modules > PM571, PM572, PM573, DCS in general > Communication > Modbus > Modbus RTU, DCS in general > Software > Configuration

3

answers

0

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119

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How many slave devices can be used in one CI853

Answered 1 year ago by AftabMemon Rank: 33

DCS in general > Communication > Modbus > Modbus RTU, 800xA > AC 800M > CI85x modules > CI853 (serial)

2

answers

2

votes

95

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How many MFM meter can be connected to CI853

Answered 1 year ago by Vinoth Sankar Rank: 119

800xA > AC 800M > CI85x modules > CI853 (serial), DCS in general > Communication > Modbus > Modbus RTU

2

answers

0

votes

65

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Connect Modbus TCP to ABB Recorder SM1000

Answered 1 year ago by Titus AKS expert

Rank: 6

DCS in general > Communication > Modbus > Modbus TCP

1

answer

0

votes

43

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Debugging CMS-600 Modbus communication

Answered 1 year ago by miikka.raninen Rank: 3340

DCS in general > Communication > Modbus > Modbus RTU

2

answers

0

votes

176

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AC800M Controller as Modbus Slave

Commented 1 year ago by rajeesh.mariyodan Rank: 294

800xA > AC 800M > Processor modules > PM861, PM864, PM866, 800xA > Connectivities > 3rd party connectivity > _Other, DCS in general > Communication > Modbus

1

answer

0

votes

106

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ABB Modbus time-out

Answered 1 year ago by Flavio Mussolin AKS expert

Rank: 4

Drives > AC drives > ACS550 series, DCS in general > Communication > Modbus > Modbus RTU

0

answers

0

votes

66

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How did you solve the issue of communication meter connected via Modbus RTU/TCP gateway with PLC Connect?

Asked 1 year ago by rrk Rank: 324

800xA > Connectivities > 3rd party connectivity > PLC Connect, DCS in general > Communication > Modbus > Modbus RTU

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answers

0

votes

132

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What command to access CI532V09 for editing?

Asked 1 year ago by primapj.ep Rank: 3884

800xA, Legacy DCS > Advant Master > Fieldbus, DCS in general > Communication > Modbus

1

answer

0

votes

33

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Freelance 900F Modbus Communication

Answered 1 year ago by Deepak.S Rank: 26

Freelance > Controllers > AC 900F, DCS in general > Communication > Modbus

0

answers

0

votes

116

views

converting IEEE-754 64-bit to integer

Asked 1 year ago by SSK_01 Rank: 479

800xA, DCS in general > Communication > Modbus

2

answers

0

votes

174

views

Modbus TCP error code -7006 between CI867 and Unitrol AVR

Asked 1 year ago by mkingemann Rank: 456

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Communication > Modbus, 800xA > AC 800M > CI86x modules > CI867 (Modbus TCP), 800xA

0

answers

0

votes

168

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Modbus/TCP CI867 Communication error

Asked 1 year ago by Fredrik Rank: 531

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Networking > Gateway, 800xA > AC 800M > CI86x modules > CI867 (Modbus TCP), 800xA > AC 800M > Hardware, firmware > Upgrade, downgrade, 800xA > System > System version > 800xA 6.0.3, 800xA

1

answer

0

votes

190

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PLC, HMI and modbus TCPIP communication

Asked 1 year ago by pramodmaske Rank: 2090

DCS in general > Communication > Modbus > Modbus TCP, 800xA > Operations > _Other, PLC Automation > AC500 > CI modules > CI521, CI522 (Modbus TCP), PLC Automation > AC500, PLC Automation > Supervisory software

0

answers

0

votes

46

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Set point from CP600

Asked 1 year ago by Jostein Rank: 1058

DCS in general > Communication > Modbus > Modbus TCP, PLC Automation > Control panels > CP600 series

0

answers

0

votes

116

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Aquamaster 3 Modbus-Serial 485

Asked 1 year ago by PedroC Rank: 36

DCS in general > Communication > Modbus > Modbus RTU, DCS in general > Communication

0

answers

0

votes

154

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Modbus TCP Communication Down

Asked 1 year ago by Arkhat Rank: 1810

DCS in general > Communication > Modbus > Modbus TCP, 800xA > AC 800M

0

answers

0

votes

233

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Communication with 35 Modbus TCP/IP servers via AC500 PM591-2ETH PLC

Asked 1 year ago by rahilmohammed Rank: 57

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Networking > Gateway, PLC Automation > AC500 > CI modules > CI521, CI522 (Modbus TCP), PLC Automation > AC500

0

answers

0

votes

117

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BRC Modbus FDI conversion to HGS

Asked 1 year ago by rnorman Rank: 2548

DCS in general > Communication > Modbus, Legacy DCS > Symphony Harmony INFI 90 > System

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