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

4

answers

3

votes

4480

views

checksum error, Modbus RTU

Asked 2 years ago by dannypat Rank: 1135

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

11

answers

1

votes

10489

views

Slave device not responding, modbus RTU

Asked 5 years ago by PM860 Rank: 965

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

2

answers

4

votes

2650

views

Termination resistor for modbus rtu

Commented 1 year ago by arunvt1992 Rank: 624

DCS in general > Communication > Modbus > Modbus RTU

4

answers

1

votes

1298

views

how to configure com_mod_master to read a holding register?

Commented 1 month ago by Amal Rank: 147

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

3

answers

0

votes

90

views

About PM866 Modbus RTU error code -7011 question

Commented 27 days ago by Chienweitu Rank: 1779

800xA > AC 800M > _Other, 800xA > AC 800M > Processor modules > PM861, PM864, PM866, DCS in general > Communication > Modbus > Modbus RTU

1

answer

1

votes

44

views

Modbus RTU not getting values

Commented 8 hours ago by kstoilov AKS expert

Rank: 5

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

1

answer

1

votes

44

views

PI reads incorrect values from wall mounted ACS800's with older software versions

Commented 1 month ago by iliatenn Rank: 4738

Drives > AC drives > ACS800 series > ACS800 single drives, DCS in general > Communication > Modbus > Modbus RTU

2

answers

2

votes

1145

views

com mod mast

Answered 4 months ago by Amal Rank: 147

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

5

answers

5

votes

1443

views

Modbus RTU over TCP

Asked 4 years ago by insen1 Rank: 920

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

1

answer

0

votes

1972

views

modbus s7-1200 - to ACS580 inverter

Asked 4 years ago by Mnajgebaur Rank: 2883

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

1

answer

1

votes

908

views

PM564 COM1 Pin details for RS485 2 wire modbus connection

Asked 2 years ago by saurishkr Rank: 91

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

9

answers

1

votes

3114

views

MODBUS. Master not able to read slave response.

Asked 5 years ago by PM860 Rank: 965

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

1

answer

4

votes

863

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: 6454

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

2

answers

3

votes

1303

views

Modbus, AC800M, PM860.

Asked 5 years ago by PM860 Rank: 965

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

3

answers

0

votes

1047

views

AC500 Modbus RTU

Asked 2 years ago by jarrett Rank: 562

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

1

answer

1

votes

409

views

Error Code 7011

Asked 5 years ago by kstoilov AKS expert

Rank: 5

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

2

answers

0

votes

1282

views

AC800M, PM860, MODBUS RTU

Asked 5 years ago by PM860 Rank: 965

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

3

answers

0

votes

723

views

Addressing in PM564 eth for reading Integer values

Asked 2 years ago by saurishkr Rank: 91

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

3

answers

2

votes

574

views

Modbus Communication with Schneider MFM

Answered 1 year ago by rajul1230 Rank: 534

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

5

answers

1

votes

780

views

CI867 with MOXA NPort for

Asked 4 years ago by aneelbaig Rank: 2968

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

4

votes

711

views

Modbus Slave -MBRead giving timeout error -4929

Asked 4 years ago by Rajeesh Mariyodan Rank: 49

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

3

answers

0

votes

396

views

StartAddress format for MBTCPRead block for functional code 01 & 02

Asked 3 years ago by saurishkr Rank: 91

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

1

answer

2

votes

1175

views

AC500 as Modbus RTU Slave with multiple masters

Asked 7 years ago by Anish Rank: 103

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

3

answers

1

votes

895

views

PM861 COM3 port pin details for RS232 communication.

Asked 2 years ago by saurishkr Rank: 91

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

3

answers

3

votes

298

views

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

Commented 1 year ago by ak Rank: 186

DCS in general > Communication > Modbus > Modbus RTU

1

answer

0

votes

279

views

How to do communicattion and configuration between AC500 and panel 800

Asked 2 years ago by chandhu Rank: 1429

1

answer

0

votes

844

views

AC500 Modbus RTU control of ACS880-01 through EFB

Asked 3 years ago by SamTeng Rank: 6697

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

1

answer

0

votes

597

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

0

votes

233

views

How to control ACS550 VFD using HMI cp405/408

Asked 3 years ago by Avinash Sawant Rank: 4179

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

3

answers

4

votes

893

views

Configuring the AC500 PM 554 Port as 422 Modbus

Asked 6 years ago by osama malhy AKS expert

Rank: 15

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

5

answers

0

votes

408

views

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

Answered 1 year ago by Kevin.zhu Rank: 2803

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

1

answer

1

votes

525

views

CI853 as Modbus RTU Master

Asked 2 years ago by Amit Rupani Rank: 162

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

1

answer

1

votes

483

views

MODBUS RTU

Commented 1 year ago by akhraszaid Rank: 196

DCS in general > Communication > Modbus > Modbus RTU

1

answer

0

votes

210

views

How to get data from Modbus RTU devices which use 45xxxx-range address

Asked 2 years ago by Hoang Van Rank: 787

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

3

answers

0

votes

180

views

AC500 MODBUS on PM564 com2

Answered 1 year ago by rahilmohammed Rank: 57

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

2

answers

2

votes

566

views

start address for 40001

Asked 3 years ago by usman Rank: 704

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

3

answers

1

votes

714

views

Modbus RTU via PM866 and COM3

Asked 5 years ago by tim00 Rank: 759

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

4

answers

2

votes

462

views

Multidrop Communication in CI853

Asked 2 years ago by manojjoshi10 Rank: 845

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

3

answers

0

votes

538

views

PM564 ETH FOR MODBUS TO MODBUS TCP

Asked 2 years ago by saurishkr Rank: 91

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

1

votes

401

views

How to connect PM571 PLC to HMI CP620 using modbus rs485

Asked 3 years ago by dede Rank: 3940

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

4

answers

0

votes

616

views

Connection Modbus RTU between two PLC AC500-eco PM554

Asked 3 years ago by bva_bonda Rank: 2897

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

1

answer

2

votes

693

views

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

Asked 3 years ago by Tapan Sahoo Rank: 1277

2

answers

4

votes

350

views

Multi function meter looping

Asked 2 years ago by saffu Rank: 3357

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

1

answer

0

votes

143

views

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

2

answers

3

votes

520

views

Modbus Address

Asked 4 years ago by saagar_khr Rank: 2229

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

3

answers

1

votes

824

views

AC800M + COM3 + Modbuse

Asked 6 years ago by kstoilov AKS expert

Rank: 5

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

1

answer

1

votes

147

views

MP200 and AC800PEC Modbus communication

Asked 2 years ago by Thazhai Rank: 482

DCS in general > Communication > Modbus > Modbus RTU, Legacy DCS > Advant Master > Controllers > MasterPiece 200 and 200/1, Power Automation > AC 800PEC

1

answer

0

votes

93

views

DSCA 180B with AC 800PEC

Asked 2 years ago by Thazhai Rank: 482

DCS in general > Communication > Modbus > Modbus RTU, Legacy DCS > Advant Master > Controllers > MasterPiece 200 and 200/1, Power Automation > AC 800PEC

3

answers

0

votes

243

views

[COMPLETE] Configuration of AC500 and CP600 over Mobus RTU

Asked 2 years ago by daguilara9 Rank: 575

2

answers

1

votes

288

views

CI853 Modbus Serial -Daisy Chain MultiDrop

Asked 3 years ago by fahaz Rank: 383

DCS in general > Communication > Modbus > Modbus RTU, 800xA > AC 800M > CI85x modules > CI853 (serial), 800xA > System > System version > 800xA 6.0.2

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