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

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AC500 Modbus RTU bug with Coriolis FCB450

Asked 6 hours ago by antonis.asimakopoulos Rank: 4652

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

1

answer

1

votes

41

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

Commented 7 days ago by iliatenn Rank: 4653

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

2

answers

0

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63

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CI534V02 - strange issue with "R" status (used with controller AC450)

Answered 29 days ago by Rob Lyon Rank: 2

DCS in general > Communication > Modbus > Modbus RTU

2

answers

2

votes

72

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is it possible to make more than one request using Modbus RTU during a PLC cycle?

Answered 1 month ago by Rob Lyon Rank: 2

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

1

answer

0

votes

68

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Problem with MODBUS RTU between AC800M and AC500

Commented 2 months ago by kstoilov AKS expert

Rank: 5

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

3

answers

1

votes

42

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Energy Analyzer

Commented 2 months ago by Amal Rank: 290

Safety Systems, DCS in general > Communication > Modbus > Modbus RTU

2

answers

0

votes

27

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

Commented 4 months ago by kstoilov AKS expert

Rank: 5

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

2

answers

0

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86

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How to Unpack a 16 bit data

Commented 4 months ago by vinomano412 Rank: 1520

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

1

answer

0

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40

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AC450 modbus redundancy (CI532V02 with MS)

Answered 3 months ago by Jan-Erik Rask Rank: 91

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

3

answers

0

votes

65

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How to configure PM583 COM2 port with multi-access for modbus-rtu & online access in CoDeSys?

Answered 6 months ago by GeekSquad13 Rank: 5275

DCS in general > Communication > Modbus > Modbus RTU

2

answers

1

votes

85

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MODBUS REDUNDANCY WITH CI853 ACTING AS SLAVE

Commented 8 months ago by prashant.verma Rank: 1179

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

1

answer

0

votes

69

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Configure AC450 as a modbus slave with CI532

Answered 1 year ago by WvanWees AKS expert

Rank: 7

DCS in general > Communication > Modbus > Modbus RTU

5

answers

0

votes

388

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

Answered 1 year ago by Kevin.zhu Rank: 2757

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

3

answers

0

votes

168

views

AC500 MODBUS on PM564 com2

Answered 1 year ago by rahilmohammed Rank: 57

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

1

answer

0

votes

73

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Ref542plus => Modbus board

Answered 1 year ago by ATP AKS expert

Rank: 28

Distribution Automation > Feeder protection & control > REF 54x series, DCS in general > Communication > Modbus > Modbus RTU

0

answers

0

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32

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Modbus Registers in RVG200

Asked 1 year ago by algarellano Rank: 2619

DCS in general > Communication > Modbus > Modbus RTU

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answers

0

votes

26

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Connecting aztec600(profibus slave) to gateway(profibus-modbus) to rvg200(modbus master)

Commented 1 year ago by Emil Lopez Rank: 2150

DCS in general > Communication > Modbus > Modbus RTU

2

answers

4

votes

2405

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Termination resistor for modbus rtu

Commented 1 year ago by arunvt1992 Rank: 617

DCS in general > Communication > Modbus > Modbus RTU

3

answers

3

votes

277

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

Commented 1 year ago by ak Rank: 190

DCS in general > Communication > Modbus > Modbus RTU

1

answer

1

votes

85

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AC500 MODBUS RTU ERROR 3003

Commented 1 year ago by arunvt1992 Rank: 617

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

1

answer

0

votes

568

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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

3

answers

0

votes

162

views

How many slave devices can be used in one CI853

Answered 1 year ago by AftabMemon Rank: 33

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

2

answers

2

votes

107

views

How many MFM meter can be connected to CI853

Answered 1 year ago by Vinoth Sankar Rank: 124

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

1

answer

0

votes

55

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Debugging CMS-600 Modbus communication

Answered 1 year ago by miikka.raninen Rank: 3593

DCS in general > Communication > Modbus > Modbus RTU

1

answer

0

votes

133

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

0

answers

0

votes

72

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How did you solve the issue of communication meter connected via Modbus RTU/TCP gateway with PLC Connect?

Asked 1 year ago by rrk Rank: 330

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

3

answers

0

votes

233

views

[COMPLETE] Configuration of AC500 and CP600 over Mobus RTU

Asked 1 year ago by daguilara9 Rank: 571

3

answers

0

votes

147

views

ABB PLC PM583-ETH can communicate starting address from 0 ???

Commented 1 year ago by kstoilov AKS expert

Rank: 5

DCS in general > Communication > Modbus > Modbus RTU, DCS in general > Control systems > PLCs, PLC Automation > _Other, PLC Automation > AC500

1

answer

0

votes

85

views

DSCA 180B with AC 800PEC

Asked 2 years ago by Thazhai Rank: 478

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

1

answer

1

votes

134

views

MP200 and AC800PEC Modbus communication

Asked 2 years ago by Thazhai Rank: 478

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

2

answers

4

votes

340

views

Multi function meter looping

Asked 2 years ago by saffu Rank: 3310

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

1

answer

0

votes

199

views

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

Asked 2 years ago by Hoang Van Rank: 782

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

0

answers

0

votes

127

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Aquamaster 3 Modbus-Serial 485

Asked 2 years ago by PedroC Rank: 38

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

3

answers

4

votes

292

views

AC500 and Aqua Master Flow Meter Modbus RTU Communication

Asked 2 years ago by engineerjaber Rank: 598

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

1

answer

0

votes

265

views

How to do communicattion and configuration between AC500 and panel 800

Asked 2 years ago by chandhu Rank: 1409

3

answers

1

votes

146

views

CP661 with MODBUS RTU or TCP/IP

Asked 2 years ago by daguilara9 Rank: 571

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

75

views

MODBUS RTU Frame Handling in MOD300

Asked 2 years ago by manojgubbala Rank: 693

DCS in general > Communication > Modbus > Modbus RTU, Legacy DCS > Advant MOD 300 > Applications > _Other

1

answer

0

votes

225

views

AC500 (PM573): Modbus RTU byte order (Endianness)

Asked 2 years ago by josepvr Rank: 1875

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

3

answers

1

votes

874

views

PM861 COM3 port pin details for RS232 communication.

Asked 2 years ago by saurishkr Rank: 90

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

1

answer

1

votes

504

views

CI853 as Modbus RTU Master

Asked 2 years ago by Amit Rupani Rank: 159

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

3

answers

2

votes

551

views

Modbus Communication with Schneider MFM

Answered 1 year ago by rajul1230 Rank: 586

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

3

answers

0

votes

688

views

Addressing in PM564 eth for reading Integer values

Asked 2 years ago by saurishkr Rank: 90

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

3

answers

0

votes

527

views

PM564 ETH FOR MODBUS TO MODBUS TCP

Asked 2 years ago by saurishkr Rank: 90

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

868

views

PM564 COM1 Pin details for RS485 2 wire modbus connection

Asked 2 years ago by saurishkr Rank: 90

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

4

answers

2

votes

449

views

Multidrop Communication in CI853

Asked 2 years ago by manojjoshi10 Rank: 840

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

2

answers

1

votes

247

views

AC800M COM3 Port number of devices and byte data it can process

Asked 2 years ago by saurishkr Rank: 90

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

3

answers

0

votes

1012

views

AC500 Modbus RTU

Asked 2 years ago by jarrett Rank: 557

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

1

answer

1

votes

97

views

Can we use two independent Modbus-RTU port from one CI853 module?

Asked 2 years ago by mehrdad Rank: 5082

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

5

answers

0

votes

143

views

AC800M Modbus RTU error code :Undefined Function Code 0

Asked 2 years ago by JaHa_ABB Rank: 1190

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

2

answers

0

votes

300

views

Modbus communication error

Asked 2 years ago by paapooshank Rank: 2648

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

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