Modbus RTU questions & answers - Control Systems Application and Knowledge Store

11

answers

1

votes

9703

views

Slave device not responding, modbus RTU

Asked 4 years ago by PM860 Rank: 946

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

2

answers

4

votes

1828

views

Termination resistor for modbus rtu

Commented 1 year ago by arunvt1992 Rank: 614

DCS in general > Communication > Modbus > Modbus RTU

4

answers

3

votes

3559

views

checksum error, Modbus RTU

Asked 2 years ago by dannypat Rank: 1095

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

3

answers

0

votes

873

views

AC500 Modbus RTU

Asked 2 years ago by jarrett Rank: 543

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

9

answers

1

votes

2968

views

MODBUS. Master not able to read slave response.

Asked 4 years ago by PM860 Rank: 946

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

1

answer

2

votes

917

views

com mod mast

Asked 2 years ago by Aravind Rank: 5529

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

1

answer

1

votes

759

views

PM564 COM1 Pin details for RS485 2 wire modbus connection

Asked 2 years ago by saurishkr Rank: 87

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

3

answers

0

votes

608

views

Addressing in PM564 eth for reading Integer values

Asked 2 years ago by saurishkr Rank: 87

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

3

answers

3

votes

237

views

reading a 32bit value from a modbus slave device using com_mod_mast

Commented 1 year ago by ak Rank: 188

DCS in general > Communication > Modbus > Modbus RTU

1

answer

0

votes

1796

views

modbus s7-1200 - to ACS580 inverter

Asked 4 years ago by Mnajgebaur Rank: 2745

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

3

answers

2

votes

495

views

Modbus Communication with Schneider MFM

Answered 10 months ago by rajul1230 Rank: 621

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

1

answer

0

votes

495

views

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

1

answer

4

votes

760

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: 6083

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

2

answers

0

votes

26

views

Data from devices connected with modbus rtu does not come from time to time? zero is coming. why?

Commented 26 days ago by kstoilov AKS expert

Rank: 5

PLC Automation > AC500-eCo > Processor modules > PM564, PM565, PM566, DCS in general > Communication > Modbus > Modbus RTU

4

answers

2

votes

417

views

Multidrop Communication in CI853

Asked 2 years ago by manojjoshi10 Rank: 829

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

2

answers

4

votes

282

views

Multi function meter looping

Asked 1 year ago by saffu Rank: 3186

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

4

answers

1

votes

1134

views

how to configure com_mod_master to read a holding register?

Commented 4 days ago by Amal Rank: 1513

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

5

answers

5

votes

1271

views

Modbus RTU over TCP

Asked 4 years ago by insen1 Rank: 897

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

2

answers

2

votes

446

views

start address for 40001

Asked 3 years ago by usman Rank: 683

DCS in general > Communication > Modbus > Modbus RTU, DCS in general > Control systems > Connectivity, 800xA > AC 800M, 800xA > Connectivities > 3rd party connectivity

8

answers

0

votes

4215

views

communication between hmi and acs drive

Asked 5 years ago by jainson Rank: 83

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

3

answers

1

votes

798

views

PM861 COM3 port pin details for RS232 communication.

Asked 2 years 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)

1

answer

0

votes

763

views

AC500 Modbus RTU control of ACS880-01 through EFB

Asked 2 years ago by SamTeng Rank: 6332

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

1

answer

1

votes

462

views

CI853 as Modbus RTU Master

Asked 2 years ago by Amit Rupani Rank: 157

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

5

answers

0

votes

319

views

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

Answered 1 year ago by Kevin.zhu Rank: 2664

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

2

answers

3

votes

453

views

Modbus Address

Asked 4 years ago by saagar_khr Rank: 2124

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

2

answers

0

votes

1202

views

AC800M, PM860, MODBUS RTU

Asked 4 years ago by PM860 Rank: 946

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

1

answer

2

votes

1128

views

AC500 as Modbus RTU Slave with multiple masters

Asked 6 years ago by Anish Rank: 101

DCS in general > Communication > Modbus > Modbus RTU, PLC Automation > AC500, Power Automation > AC 800PEC

2

answers

4

votes

604

views

How to read 32 bit register using CI853 ?

Asked 6 years ago by sjrnathan Rank: 2106

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

3

answers

0

votes

486

views

PM564 ETH FOR MODBUS TO MODBUS TCP

Asked 2 years ago by saurishkr Rank: 87

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

1

answer

1

votes

442

views

MODBUS RTU

Commented 1 year ago by akhraszaid Rank: 190

DCS in general > Communication > Modbus > Modbus RTU

2

answers

1

votes

358

views

How to connect PM571 PLC to HMI CP620 using modbus rs485

Asked 2 years ago by dede Rank: 3714

DCS in general > Communication > Modbus > Modbus RTU, PLC Automation > AC500, PLC Automation > Control panels > CP600 series

1

answer

1

votes

268

views

communication b/w PLc V1040 and raspberry pi

Asked 2 years ago by prasanna2u Rank: 1608

DCS in general > Communication > Modbus > Modbus RTU, DCS in general > Communication > Modbus > Modbus TCP, 800xA > Operations > _Other, PLC Automation > Supervisory software

2

answers

3

votes

1201

views

Modbus, AC800M, PM860.

Asked 4 years ago by PM860 Rank: 946

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

3

answers

2

votes

231

views

in 800Xa version 5.1 FP2 how to configure CI853 as a slave in modbus RTU configuration.

Asked 3 years ago by vsenthilraja2003 Rank: 1223

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

1

answer

2

votes

643

views

Configuration settings required in RTU540 for IEC101,IEC104,Modbus serial communication

Asked 3 years ago by Tapan Sahoo Rank: 1275

5

answers

0

votes

717

views

CI867 with MOXA NPort for

Asked 3 years ago by aneelbaig Rank: 2817

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

4

answers

0

votes

567

views

Connection Modbus RTU between two PLC AC500-eco PM554

Asked 2 years ago by bva_bonda Rank: 2760

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

3

answers

1

votes

143

views

CP661 with MODBUS RTU or TCP/IP

Asked 1 year ago by daguilara9 Rank: 558

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

1

answer

0

votes

39

views

AC450 modbus redundancy (CI532V02 with MS)

Answered 12 days ago by Jan-Erik Rask Rank: 94

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

2

answers

0

votes

84

views

How to Unpack a 16 bit data

Commented 1 month ago by vinomano412 Rank: 2014

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

1

answer

0

votes

199

views

How to control ACS550 VFD using HMI cp405/408

Asked 3 years ago by Avinash Sawant Rank: 3945

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

3

answers

2

votes

522

views

Modbus Communication using Special Message Framing AC500 via Emerson Floboss

Asked 4 years ago by yavuzz Rank: 610

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

1

answer

2

votes

843

views

AC450 controller -- CI532 V02 for MODBUS comm. ERR

Asked 5 years ago by juan yu Rank: 1008

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

3

answers

1

votes

676

views

Modbus RTU via PM866 and COM3

Asked 5 years ago by tim00 Rank: 735

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

1

answer

1

votes

656

views

Why cm 574 communication module configuration error comes continuously

Asked 5 years ago by rajeswaran Rank: 508

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

3

answers

9

votes

1966

views

Modbus RTU configuration

Asked 7 years ago by Willians Dutra Rank: 200

DCS in general > Communication > Modbus > Modbus RTU, Freelance > Controllers > AC 800F

5

answers

5

votes

841

views

800m modbus communication

Asked 4 years ago by susheelkrjain Rank: 663

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

4

answers

4

votes

661

views

Modbus Slave -MBRead giving timeout error -4929

Asked 3 years ago by Rajeesh Mariyodan Rank: 51

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

3

answers

0

votes

361

views

StartAddress format for MBTCPRead block for functional code 01 & 02

Asked 3 years ago by saurishkr Rank: 87

DCS in general > Communication > Modbus > Modbus RTU, DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Communication > Modbus, 800xA > AC 800M > CI86x modules > CI867 (Modbus TCP), Compact Product Suite > Engineering > Compact Control Builder

3

answers

4

votes

280

views

AC500 and Aqua Master Flow Meter Modbus RTU Communication

Asked 1 year ago by engineerjaber Rank: 597

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

AKS experts