Modbus questions & answers - Control Systems Application and Knowledge Store

11

answers

1

votes

8439

views

Slave device not responding, modbus RTU

Asked 4 years ago by PM860 Rank: 902

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

4

answers

3

votes

2463

views

checksum error, Modbus RTU

Asked 2 years ago by dannypat Rank: 1049

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

2

answers

4

votes

729

views

Termination resistor for modbus rtu

Commented 10 months ago by arunvt1992 Rank: 661

DCS in general > Communication > Modbus > Modbus RTU

3

answers

4

votes

3850

views

How can i transfer REAL numbers for example the value "5.32" through Modbus RTU ?

Asked 3 years ago by kiriakos Rank: 1877

DCS in general > Communication > Modbus

1

answer

1

votes

78

views

Modbus RS485 to Phoenix Contact Ethernet Converter to CI867 comms issue

Commented 3 days ago by Ben Merryman Rank: 662

800xA > Connectivities > 3rd party connectivity > _Other, 800xA > AC 800M > CI86x modules > CI867 (Modbus TCP), DCS in general > Communication > Modbus > Modbus TCP, 800xA > AC 800M > Hardware, firmware > ModuleBus, 800xA > System > System version > 800xA 6.0.1

2

answers

3

votes

1203

views

How do I in software configure AC500 as a Modbus TCP/IP slave

Asked 2 years ago by Aoo Rank: 1689

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

1

answer

0

votes

1864

views

Connection REF615 and SCADA over MODBUS TCP/IP

Commented 2 months ago by heramirez Rank: 1666

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Communication > Modbus, Distribution Automation > Feeder protection & control > REF6xx series

1

answer

1

votes

1003

views

ACS 550 modbus communication

Asked 1 year ago by Nivin Rank: 4575

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

5

answers

4

votes

3085

views

Modbus TCP/IP

Asked 4 years ago by Luka Rank: 468

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

1

answer

0

votes

677

views

CI867 as Modbus TCP slave

Asked 4 years ago by pauly25 Rank: 823

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

1

answer

1

votes

539

views

PM564 COM1 Pin details for RS485 2 wire modbus connection

Asked 1 year ago by saurishkr Rank: 85

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

3

answers

0

votes

522

views

AC500 Modbus RTU Slave, adresses for input/output

Commented 10 months ago by kstoilov AKS expert

Rank: 5

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

2

answers

7

votes

3069

views

CI853

Asked 5 years ago by SG Rank: 42

DCS in general > Communication > Modbus, DCS in general > Communication, DCS in general > Software > Configuration, 800xA > AC 800M > CI modules (other), 800xA > System > Administration & configuration > Configuration

3

answers

1

votes

603

views

PM861 COM3 port pin details for RS232 communication.

Asked 1 year ago by saurishkr Rank: 85

DCS in general > Communication > Modbus > Modbus RTU, DCS in general > Communication > Modbus, 800xA > AC 800M, Freelance > Controllers > AC 800F > FI 820F (Serial)

4

answers

2

votes

1592

views

modbus tcp slave not responding?

Asked 2 years ago by Aoo Rank: 1689

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

1

answer

1

votes

829

views

PLC reading from a holding register

Asked 2 years ago by Aoo Rank: 1689

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

1

answer

0

votes

1413

views

I need to connect ref615 relay having modbus connectivity with modbus to tcp/ip converter.

Asked 3 years ago by saurishkr Rank: 85

DCS in general > Communication > Modbus, DCS in general > Control systems > Hardware, Distribution Automation > Feeder protection & control > REF6xx series

1

answer

0

votes

1575

views

modbus s7-1200 - to ACS580 inverter

Asked 3 years ago by Mnajgebaur Rank: 2569

DCS in general > Communication > Modbus > Modbus RTU, Drives > DC drives fieldbus adapter > MotiFlex > OPT-FB-003 - Modbus RTU, Drives

3

answers

0

votes

605

views

AC500 Modbus RTU

Asked 1 year ago by jarrett Rank: 523

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

2

answers

5

votes

426

views

RTU540 Web HMI not opening

Commented 8 days ago by Yoginder.K.Singh Rank: 23

DCS in general > Communication > Modbus > Modbus TCP, Power Automation > Remote terminal units > RTU500 series > RTU560, RTU560E

4

answers

2

votes

825

views

AC500 PLC to PLC communication

Asked 2 years ago by asad1837 Rank: 519

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

3

answers

3

votes

762

views

AC500 Modbus

Asked 2 years ago by Robinson Rank: 494

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

3

answers

3

votes

2561

views

Modbus pin configuration (Serial DB9 to RJ45)

Asked 4 years ago by mshahabahmad Rank: 718

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

1

answer

4

votes

2173

views

Modbus TCP/IP in Bailey Infi90

Asked 6 years ago by Alimard Rank: 804

DCS in general > Communication > Modbus > Modbus TCP, Legacy DCS > Symphony Harmony INFI 90 > System, Symphony Plus > Operations > Display Library > Harmony, Symphony Plus

1

answer

1

votes

2042

views

CI867 AC800M Modbus TCP/IP Configured as a Slave?

Asked 5 years ago by bozomanuk Rank: 1865

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

2

answers

1

votes

1564

views

Modbus TCP/IP read 32 bit value

Asked 3 years ago by mshahabahmad Rank: 718

DCS in general > Communication > Modbus > Modbus TCP

3

answers

12

votes

1146

views

AC500 ETH_MOD_MAST - how to close connection

Asked 3 years ago by adi2 Rank: 203

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

1

answer

2

votes

690

views

com mod mast

Asked 2 years ago by Aravind Rank: 5088

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

2

answers

1

votes

757

views

Modbus TCP slave (PLC) Is diconnecting due to watchdog timer?

Asked 2 years ago by Aoo Rank: 1689

DCS in general > Communication > Modbus > Modbus TCP

3

answers

0

votes

431

views

Addressing in PM564 eth for reading Integer values

Asked 1 year ago by saurishkr Rank: 85

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

1

answer

1

votes

1047

views

CI867 Modbus TCP/IP slave

Asked 4 years ago by pauly25 Rank: 823

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

10

answers

8

votes

2684

views

COMPACT HMI with Modbus TCP

Asked 6 years ago by csanchez411 AKS expert

Rank: 14

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Software > Configuration, 800xA > System > Administration & configuration > Configuration, Compact Product Suite > Operations > Compact HMI

3

answers

2

votes

338

views

Modbus Communication with Schneider MFM

Answered 4 months ago by rajul1230 Rank: 641

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

1

answer

0

votes

615

views

AC500 Modbus RTU control of ACS880-01 through EFB

Asked 2 years ago by SamTeng Rank: 5871

DCS in general > Communication > Modbus > Modbus RTU, Drives > AC drives > ACS800 series, PLC Automation > AC500

2

answers

0

votes

615

views

CI867, Modbus TCP

Asked 2 years ago by JJ Rank: 1273

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

1

answer

1

votes

1237

views

CI867 Modbus TCP Master Communication Error

Asked 2 years ago by Jagl77 Rank: 224

DCS in general > Communication > Modbus > Modbus TCP, 800xA > AC 800M > CI86x modules > CI867 (Modbus TCP), 800xA > System > System version > 800xA 6.0

7

answers

0

votes

601

views

CI867 Hardware Configuration

Asked 1 year ago by ertug Rank: 624

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

1

answer

1

votes

330

views

800xA communication with Modbus TCP/IP,

Asked 2 years ago by Makk_ice Rank: 493

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Control systems > Connectivity, 800xA > Connectivities > 3rd party connectivity, 800xA > System > System version > 800xA 5.1 FP4

2

answers

1

votes

794

views

32 bits dint to two 16bits dint

Asked 2 years ago by aerodriguez2010 Rank: 521

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

4

answers

2

votes

1079

views

Read/Write discrete Input/output using modbus tcp

Asked 2 years ago by Dannyf Rank: 3018

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Communication, 800xA > Engineering, PLC Automation > AC500 > CI modules > CI521, CI522 (Modbus TCP), PLC Automation > AC500

2

answers

2

votes

734

views

PLC Connect Controller Addressing for Communicating Modbus Registers

Asked 2 years ago by Makk_ice Rank: 493

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Communication > OPC, 800xA > Connectivities > 3rd party connectivity > _Other, 800xA > Connectivities > 3rd party connectivity > PLC Connect, 800xA > System > System version > 800xA 5.1 FP4

1

answer

0

votes

327

views

Modbus Communication with INVERTER ABB UNO 3.0-TL-OUTD-S

Commented 5 months ago by karan Rank: 6379

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

2

answers

0

votes

458

views

Setting up ModBus TCP

Asked 1 year ago by bolman Rank: 5116

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

3

answers

0

votes

385

views

PM564 ETH FOR MODBUS TO MODBUS TCP

Asked 1 year ago by saurishkr Rank: 85

DCS in general > Communication > Modbus > Modbus RTU, DCS in general > Communication > Modbus > Modbus TCP, PLC Automation > AC500-eCo, PLC Automation > Engineering > Automation Builder > CODESYS, PLC Automation > Engineering > Automation Builder

2

answers

2

votes

955

views

Is it possible to directly monitor a boolean bit within an integer?

Asked 3 years ago by SamAI Rank: 1141

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

2

answers

0

votes

473

views

I wish to know how to set up Ethernet modbus on the control builder and codesys software(ETH_MOD_MAST FB)

Asked 3 years ago by MTHOBISI Rank: 1491

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

1

answer

0

votes

754

views

800xa PLC connect Modbus TCP/IP

Asked 4 years ago by kicken Rank: 1318

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

2

answers

4

votes

1986

views

Does anyone have a working example of UDP Master, to Multiple Slave Data Exchange with AC500?

Asked 6 years ago by josh.donovan Rank: 122

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

6

answers

7

votes

4816

views

How to declare AC800M CI867 as Modbus TCP Master?

Commented 6 months ago by mtoshiokan Rank: 3320

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

8

answers

0

votes

4106

views

communication between hmi and acs drive

Asked 4 years ago by jainson Rank: 81

DCS in general > Communication > Modbus > Modbus RTU, Drives > DC drives fieldbus adapter > MotiFlex > OPT-FB-003 - Modbus RTU, Drives, PLC Automation > Control panels

AKS experts