Modbus questions & answers - Control Systems Application and Knowledge Store

11

answers

1

votes

8898

views

Slave device not responding, modbus RTU

Asked 4 years ago by PM860 Rank: 916

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

2

answers

4

votes

1020

views

Termination resistor for modbus rtu

Commented 1 year ago by arunvt1992 Rank: 672

DCS in general > Communication > Modbus > Modbus RTU

4

answers

3

votes

2785

views

checksum error, Modbus RTU

Asked 2 years ago by dannypat Rank: 1066

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

3

answers

4

votes

3996

views

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

Asked 4 years ago by kiriakos Rank: 1920

DCS in general > Communication > Modbus

5

answers

4

votes

3208

views

Modbus TCP/IP

Asked 4 years ago by Luka Rank: 477

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

1

answer

0

votes

75

views

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

Commented 24 days ago by anthony.valverde Rank: 1503

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

1

answer

1

votes

1356

views

CI867 Modbus TCP Master Communication Error

Asked 2 years ago by Jagl77 Rank: 222

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

1

answer

0

votes

1993

views

Connection REF615 and SCADA over MODBUS TCP/IP

Commented 4 months ago by heramirez Rank: 1535

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

2

answers

1

votes

64

views

MODBUS REDUNDANCY WITH CI853 ACTING AS SLAVE

Commented 1 month ago by prashant.verma Rank: 1329

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

2

answers

3

votes

1312

views

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

Asked 3 years ago by Aoo Rank: 1718

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

1

votes

1100

views

ACS 550 modbus communication

Asked 1 year ago by Nivin Rank: 4693

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

1

answer

1

votes

913

views

PLC reading from a holding register

Asked 3 years ago by Aoo Rank: 1718

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

3

answers

12

votes

1205

views

AC500 ETH_MOD_MAST - how to close connection

Asked 4 years ago by adi2 Rank: 208

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

3

answers

0

votes

622

views

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

7

answers

0

votes

689

views

CI867 Hardware Configuration

Asked 1 year ago by ertug Rank: 634

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

3

answers

1

votes

683

views

PM861 COM3 port pin details for RS232 communication.

Asked 1 year ago by saurishkr Rank: 87

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

1680

views

modbus tcp slave not responding?

Asked 3 years ago by Aoo Rank: 1718

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

2

votes

757

views

com mod mast

Asked 2 years ago by Aravind Rank: 5245

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

1

answer

1

votes

1117

views

CI867 Modbus TCP/IP slave

Asked 4 years ago by pauly25 Rank: 835

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

6

answers

7

votes

4876

views

How to declare AC800M CI867 as Modbus TCP Master?

Commented 8 months ago by mtoshiokan Rank: 2477

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

3

answers

3

votes

836

views

AC500 Modbus

Asked 2 years ago by Robinson Rank: 504

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

3

answers

0

votes

689

views

AC500 Modbus RTU

Asked 1 year ago by jarrett Rank: 534

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

1

answer

1

votes

372

views

CI853 as Modbus RTU Master

Asked 1 year ago by Amit Rupani Rank: 156

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

1

answer

0

votes

1643

views

modbus s7-1200 - to ACS580 inverter

Asked 3 years ago by Mnajgebaur Rank: 2635

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

1

answer

4

votes

671

views

hi,I see error 12291 error when I configurate modbus rtu in AC500 with com_mod_mast how can I solve this problem?

Asked 4 years ago by beddem Rank: 5785

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

1

answer

1

votes

736

views

CI867 as Modbus TCP slave

Asked 4 years ago by pauly25 Rank: 835

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

1

answer

4

votes

2219

views

Modbus TCP/IP in Bailey Infi90

Asked 6 years ago by Alimard Rank: 814

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

1

answer

0

votes

490

views

Configure Modbus Slave address in Codesys

Asked 1 year ago by jarrett Rank: 534

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

1

answer

0

votes

674

views

AC500 Modbus RTU control of ACS880-01 through EFB

Asked 2 years ago by SamTeng Rank: 6035

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

2

answers

0

votes

503

views

Setting up ModBus TCP

Asked 2 years ago by bolman Rank: 5273

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

3

answers

0

votes

489

views

Addressing in PM564 eth for reading Integer values

Asked 1 year ago by saurishkr Rank: 87

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

5

answers

0

votes

242

views

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

Answered 9 months ago by Kevin.zhu Rank: 2559

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

1

answer

0

votes

1466

views

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

Asked 3 years ago by saurishkr Rank: 87

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

2

answers

7

votes

3141

views

CI853

Asked 5 years ago by SG Rank: 43

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

0

votes

1387

views

how to configure PM581-eth as modbus slave on modbus on tcp/ip with siemens 319 plc as master.

Asked 5 years ago by hme Rank: 5641

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Software > Configuration, 800xA > System > Administration & configuration > Configuration, PLC Automation > AC500 > CI modules > CI521, CI522 (Modbus TCP), PLC Automation > AC500

3

answers

2

votes

385

views

Modbus Communication with Schneider MFM

Answered 6 months ago by rajul1230 Rank: 621

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

1

answer

1

votes

594

views

PM564 COM1 Pin details for RS485 2 wire modbus connection

Asked 1 year ago by saurishkr Rank: 87

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

1

answer

2

votes

197

views

ETH_MOD_MAST Limitations.

Answered 11 months ago by ak Rank: 212

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

2

answers

1

votes

861

views

32 bits dint to two 16bits dint

Asked 3 years ago by aerodriguez2010 Rank: 519

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

1

answer

1

votes

764

views

Regarding %MW address problem in AC500

Asked 3 years ago by rajshasthri Rank: 1064

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

2

answers

1

votes

1619

views

Modbus TCP/IP read 32 bit value

Asked 4 years ago by mshahabahmad Rank: 731

DCS in general > Communication > Modbus > Modbus TCP

2

answers

0

votes

512

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: 1514

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

4

votes

2156

views

PLC Connect Modbus TCP driver,

Asked 6 years ago by MCordero Rank: 144

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

2

answers

0

votes

658

views

CI867, Modbus TCP

Asked 2 years ago by JJ Rank: 1296

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

2

answers

5

votes

475

views

RTU540 Web HMI not opening

Commented 2 months ago by Yoginder.K.Singh Rank: 23

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

1

answer

1

votes

506

views

PLC Connect Modbus TCP/IP to AC500

Asked 4 years ago by hsma Rank: 1355

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

1

answer

1

votes

2086

views

CI867 AC800M Modbus TCP/IP Configured as a Slave?

Asked 5 years ago by bozomanuk Rank: 1908

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

1

answer

0

votes

1209

views

How to Configure the PM573 PLC to Intouch SCADA Communication

Asked 3 years ago by Balamurugan Rank: 1923

DCS in general > Communication > Modbus, DCS in general > Communication > OPC, 800xA > Connectivities > 3rd party connectivity > _Other, PLC Automation > AC500, PLC Automation > Supervisory software > DigiVis 500

9

answers

1

votes

2849

views

MODBUS. Master not able to read slave response.

Asked 4 years ago by PM860 Rank: 916

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

6

answers

3

votes

1243

views

Modbus communication Issue with CI853 and CI867 in the same Hardware

Asked 4 years ago by aeciolevy Rank: 775

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

AKS experts