Modbus questions & answers - Control Systems Application and Knowledge Store

1

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What is the best way to read a float when using plc connect modbus tcp driver

Asked 4 years ago by Ashrith N Rank: 61

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

1

answer

0

votes

773

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800xa PLC connect Modbus TCP/IP

Asked 4 years ago by kicken Rank: 1350

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

1

answer

1

votes

173

views

Modbus configuration AC70 controller

Asked 4 years ago by Joby Sebastain Rank: 142

DCS in general > Communication > Modbus, DCS in general > Software > Configuration, 800xA > System > Administration & configuration > Configuration, Legacy DCS > Advant Master > Controllers > Advant Controller 70

10

answers

3

votes

753

views

Modbus redundancy with COM3 of AC800M..

Asked 4 years ago by srao2010 Rank: 128

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

1

answer

0

votes

161

views

Modbus connection down -7001

Asked 4 years ago by Vijay123 Rank: 4165

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

1

answer

1

votes

850

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need application example acs550 with s7-1200

Asked 4 years ago by tushar.c.gohel Rank: 1857

DCS in general > Communication > Modbus, Drives > DC drives fieldbus adapter > Modbus/ Modbus Plus adapter, Drives

2

answers

0

votes

686

views

CI853 and CI867 Slave Capacity

Asked 4 years ago by carpa Rank: 4515

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

1

answer

0

votes

531

views

Add a Modbus Slave on AC450 with CI534V02?

Asked 4 years ago by jjackson8 Rank: 216

DCS in general > Communication > Modbus, Legacy DCS > Advant Master > Controllers > Advant Controller 450, Legacy DCS > Advant Master > Controllers > Advant Controller 450RMC, Legacy DCS > Advant Master

4

answers

1

votes

1078

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how to configure com_mod_master to read a holding register?

Asked 4 years ago by Mr. SINISTER Rank: 3737

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

1

answer

1

votes

366

views

CI867 as Slave

Asked 4 years ago by Rajeesh Mariyodan Rank: 49

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

3

answers

3

votes

2651

views

Modbus pin configuration (Serial DB9 to RJ45)

Asked 4 years ago by mshahabahmad Rank: 734

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

1

answer

0

votes

130

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AC110 modbus connection to AC800M

Asked 4 years ago by takabi Rank: 302

DCS in general > Communication > Modbus, 800xA > AC 800M, Legacy DCS > Advant Master > Controllers > Advant Controller 110

2

answers

0

votes

366

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modbus communication between acs355 vfd and pm554 via frsa card

Asked 4 years ago by jainson Rank: 83

DCS in general > Communication > Modbus, Drives > DC drives fieldbus adapter > Modbus/ Modbus Plus adapter, Drives, PLC Automation > AC500

1

answer

0

votes

121

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We have problems with AC800M ModBus connections.From time to time we lost communication.

Asked 4 years ago by Darac Rank: 2062

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

1

answer

2

votes

222

views

MODBUS TCP communication between two systems

Asked 4 years ago by ToreWassen Rank: 74

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

6

answers

3

votes

1248

views

Modbus communication Issue with CI853 and CI867 in the same Hardware

Asked 4 years ago by aeciolevy Rank: 780

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

2

answers

0

votes

435

views

CI867 "protocol object not found" error code: -6811

Asked 4 years ago by pali Rank: 2273

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

9

answers

1

votes

2868

views

MODBUS. Master not able to read slave response.

Asked 4 years ago by PM860 Rank: 921

DCS in general > Communication > Modbus > Modbus RTU, 800xA > AC 800M > CI modules (other), 800xA > AC 800M

3

answers

2

votes

658

views

CI867 Read/Write Real data type

Asked 4 years ago by koyeap Rank: 3098

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

2

answers

0

votes

339

views

CI853 'device not found' & PM864 failure

Asked 4 years ago by mpr1nt Rank: 2211

DCS in general > Communication > Modbus, 800xA > AC 800M > CI modules (other), 800xA > AC 800M, 800xA > System > Redundancy

1

answer

1

votes

246

views

800xA Modbus TCP to Multiple Serial Slave Polling Optimization

Asked 4 years ago by Foo How Rank: 1318

DCS in general > Communication > Modbus > Modbus RTU, DCS in general > Software > Configuration, 800xA > AC 800M, 800xA > System > Administration & configuration > Configuration

1

answer

1

votes

362

views

Error Code 7011

Asked 4 years ago by kstoilov AKS expert

Rank: 5

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

1

answer

1

votes

132

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PR123 "Open programming session"

Asked 4 years ago by Shcoles Rank: 2419

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

1

answer

0

votes

439

views

MVI-modbus advant controller 110 series user guide

Asked 4 years ago by takabi Rank: 302

DCS in general > Communication > Modbus, Legacy DCS > Advant Master > Controllers > Advant Controller 110, Legacy DCS > Advant Master

1

answer

2

votes

506

views

How configure Modbus TCP communication with redundant Freelance 800F

Asked 4 years ago by Alain Dubois Rank: 521

DCS in general > Communication > Modbus > Modbus TCP, 800xA > System > Redundancy, Freelance > Controllers > AC 800F

2

answers

8

votes

334

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Hi, I want to Write/Read Some I/O with analogs between a ABB AC500 PM583 Eth PLC to Schneider M340 PLC via etherne

Asked 4 years ago by Conrad1973 Rank: 3463

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Control systems > Connectivity, 800xA > Connectivities > 3rd party connectivity, PLC Automation > AC500 > CI modules > CI521, CI522 (Modbus TCP), PLC Automation > AC500

1

answer

0

votes

244

views

Utilizing Modbus Function 23 with AC500 controller

Asked 4 years ago by lwhouser Rank: 3096

DCS in general > Communication > Modbus > Modbus TCP, Drives > DC drives fieldbus adapter > MotiFlex > OPT-FB-005 - ModbusTCP, Drives, PLC Automation > AC500 > CI modules > CI521, CI522 (Modbus TCP), PLC Automation > AC500

3

answers

2

votes

1153

views

Modbus ASCII on AC500

Asked 4 years ago by yavuzz Rank: 600

DCS in general > Communication > Modbus, PLC Automation > AC500, PLC Automation > Engineering > Automation Builder > CODESYS

3

answers

2

votes

507

views

Modbus Communication using Special Message Framing AC500 via Emerson Floboss

Asked 4 years ago by yavuzz Rank: 600

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

11

answers

1

votes

9068

views

Slave device not responding, modbus RTU

Asked 4 years ago by PM860 Rank: 921

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

3

answers

0

votes

317

views

ACS550 and PM9C connection via Modbus RTU problem

Asked 4 years ago by irem Rank: 477

DCS in general > Communication > Modbus, Drives > DC drives fieldbus adapter > Modbus/ Modbus Plus adapter, Drives

1

answer

2

votes

776

views

One CI867 as Master and Slave

Asked 4 years ago by mahesh.k Rank: 1183

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Software > Configuration, 800xA > AC 800M, 800xA > System > Administration & configuration > Configuration

1

answer

0

votes

180

views

any configurations required to act as modbus tcp server

Asked 4 years ago by saikrishna7799 Rank: 250

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Software > Configuration, 800xA > AC 800M, 800xA > System > Administration & configuration > Configuration

1

answer

0

votes

198

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Im having ci867 with ac800m, in that ch2 is connected to HMI (which is Modbus slave),can i use ch1 as Modbus slave

Asked 4 years ago by saikrishna7799 Rank: 250

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

2

answers

0

votes

1176

views

AC800M, PM860, MODBUS RTU

Asked 4 years ago by PM860 Rank: 921

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

1

answer

1

votes

352

views

Redundant AC900F Comunication with S7-1200

Asked 4 years ago by itron Rank: 180

DCS in general > Communication > Modbus > Modbus TCP

2

answers

1

votes

316

views

PM573 read data from pm9c powermeter via modbus rtu

Asked 4 years ago by irem Rank: 477

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

2

answers

2

votes

444

views

Modbus, AC800M, PM860.

Asked 4 years ago by PM860 Rank: 921

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

1

answer

1

votes

205

views

cp 400 modbus mapping

Asked 4 years ago by jainson Rank: 83

DCS in general > Communication > Modbus, DCS in general > Communication, PLC Automation > AC500, PLC Automation > Control panels

2

answers

3

votes

1147

views

Modbus, AC800M, PM860.

Asked 4 years ago by PM860 Rank: 921

DCS in general > Communication > Modbus > Modbus RTU, DCS in general > Software > Configuration, 800xA > AC 800M, 800xA > System > Administration & configuration > Configuration

1

answer

0

votes

390

views

Compact HMI modbus REAL value

Asked 4 years ago by marquee71 Rank: 4530

DCS in general > Communication > Modbus > Modbus TCP, Compact Product Suite > Operations > Compact HMI, PLC Automation > AC500 > CI modules > CI521, CI522 (Modbus TCP), PLC Automation > AC500

1

answer

0

votes

178

views

Modbus Connection of AC110 to AC800M

Asked 4 years ago by takabi Rank: 302

DCS in general > Communication > Modbus, 800xA > AC 800M, Legacy DCS > Advant Master > Controllers > Advant Controller 110, Legacy DCS > Advant Master

1

answer

1

votes

791

views

MODBUS communication Break

Asked 4 years ago by inripra Rank: 831

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Communication, DCS in general > Software > Configuration, 800xA > System > Administration & configuration > Configuration, Freelance > System > Administration & configuration > Configuration

1

answer

0

votes

272

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Modbus Variables Freezing - CI867 - Error Message: "Fault Comm WD Time"

Asked 4 years ago by mcamargo Rank: 187

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

2

answers

0

votes

358

views

retain timer values in eco plci

Asked 4 years ago by jainson Rank: 83

DCS in general > Communication > Modbus, PLC Automation > AC500, PLC Automation > Control panels

1

answer

2

votes

358

views

access modbus register in hmi

Asked 4 years ago by jainson Rank: 83

DCS in general > Communication > Modbus, PLC Automation > AC500, PLC Automation > Control panels

2

answers

5

votes

310

views

modbus communication of AC800M

Asked 4 years ago by vijay002 Rank: 1974

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

1

answer

0

votes

328

views

AC800F , Modbus TCP communication with third party software with serial to TCP converter

Asked 4 years ago by turgayserdas Rank: 5749

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Control systems > Connectivity, 800xA > Connectivities > 3rd party connectivity, Freelance > Controllers > AC 800F

1

answer

2

votes

187

views

please help me on Modbus communication

Asked 4 years ago by vijay002 Rank: 1974

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

2

answers

3

votes

421

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PLC Connect Modbus TCP to 800xA word order problem

Asked 4 years ago by uysopro Rank: 1593

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

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