Modbus questions & answers - Control Systems Application and Knowledge Store

1

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43

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MBWrite Status -7001, Error occurs when the variable value becomes negative.

Answered 1 month ago by Neeraj Rank: 587

PLC Automation, DCS in general > Communication > Modbus

3

answers

0

votes

84

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We have a Modbus mapping list for a flow computer .

Answered 1 month ago by ParthibanT Rank: 43

800xA > Applications > _Other, DCS in general > Communication > Modbus

1

answer

2

votes

55

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AC800M Modbus: Use same Modbus FB the read / write different registers

Commented 2 months ago by epelt Rank: 1911

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

3

answers

0

votes

106

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Modbus Float registers

Answered 2 months ago by ParthibanT Rank: 43

DCS in general > Communication > Modbus > Modbus RTU

0

answers

0

votes

72

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AC800M as Modbus Slave and Modscan as Modbus master

Commented 2 months ago by Neeraj Rank: 587

PLC Automation, DCS in general > Communication > Modbus

0

answers

0

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44

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FENA-11 Modbus TCP adapter

Commented 2 months ago by ParthibanT Rank: 43

DCS in general > Communication > Modbus > Modbus TCP

0

answers

0

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39

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FENA-11 Modbus TCP adapter

Asked 3 months ago by monther.khalifah Rank: 3511

Power Automation > Solar inverter > _Other, DCS in general > Communication > Modbus > Modbus TCP

1

answer

0

votes

54

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Support Modbus RTU Function Code 22

Answered 3 months ago by rahil.m Rank: 1074

PLC Automation > AC500 > Applications > High Availability, DCS in general > Communication > Modbus > Modbus RTU

1

answer

0

votes

103

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AC500 communication float or double data type with Modbus TCP/IP (ETH_MOD_MAST or other block)

Commented 4 months ago by Amal Rank: 88

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

2

answers

0

votes

81

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Modbus TCP IP Communicaiton in CHMI

Commented 4 months ago by kstoilov AKS expert

Rank: 5

DCS in general > Communication > Modbus > Modbus TCP, PLC Automation > AC500-eCo > Processor modules > PM554, PM555, PM556

1

answer

0

votes

63

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CI867 card going unresponsive with all LED indication off and communication failure

Answered 4 months ago by ParthibanT Rank: 43

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

0

answers

0

votes

127

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Modbus TCP/IP -PLC connect

Commented 4 months ago by Amal Rank: 88

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

2

answers

0

votes

80

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Writing to Siemens PLC via modbus using Function Code 6 breaks modbus communication

Answered 5 months ago by kstoilov AKS expert

Rank: 5

DCS in general > Communication > Modbus > Modbus TCP

3

answers

0

votes

69

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Modbus MBRead Status is changing in between o and 1

Answered 4 months ago by Rajeesh Mariyodan Rank: 40

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

0

answers

0

votes

17

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ABB Upscale DPA Modules Time Sync

Asked 5 months ago by iliatenn Rank: 3341

DCS in general > Communication > Modbus > Modbus TCP

2

answers

0

votes

64

views

MBTCPRead status of -7006 with GE Multilin 339 Relay

Answered 5 months ago by Rajeesh Mariyodan Rank: 40

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

3

answers

5

votes

149

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How enable Modbus TCP in ABB AC800M controller to enable communication to scada?

Commented 3 months ago by veerendrap Rank: 1506

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

0

answers

0

votes

94

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MODBUS TCP IP

Commented 6 months ago by kstoilov AKS expert

Rank: 5

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

1

answer

1

votes

55

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mapping Modbus RTU between ABB UNO 3.3 and React-MTR-1PH

Commented 6 months ago by jm.torres Rank: 5102

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

1

answer

0

votes

38

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8211 timeout error in Modbus rtu

Answered 6 months ago by Amal Rank: 88

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

0

answers

0

votes

31

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PROBLEM IN LOCAL_CTRL_ON IN PLC DURING MODBUS COMMUNICATION WITH VFD

Asked 7 months ago by VAP_Arun Rank: 561

PLC Automation > AC500-eCo > _Other, Drives > AC drives > _Other, DCS in general > Communication > Modbus

1

answer

0

votes

73

views

PM710 and PM750 Modbus data reading issue

Answered 7 months ago by Rob Lyon Rank: 2

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

3

answers

0

votes

77

views

PLC Connect - Modbus TCP/IP Drive - Double HRA to Decimal Real Value

Answered 7 months ago by mcamargo Rank: 168

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

3

answers

0

votes

112

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About PM866 Modbus RTU error code -7011 question

Commented 7 months ago by Chienweitu Rank: 1879

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

0

answers

0

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50

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AC500, Modbus TCP/IP Server Configuration using Automation builder ver 2.2

Asked 7 months ago by m.f.mousa Rank: 4680

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

1

answer

0

votes

55

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Modbus register for Ekip UP

Commented 7 months ago by milosav.sekaric Rank: 3983

DCS in general > Communication > Modbus > Modbus TCP

0

answers

0

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58

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MODBUS VFD CONFIGURATION

Commented 7 months ago by kstoilov AKS expert

Rank: 5

Drives, PLC Automation > AC500 > Processor modules > PM581, PM582, PM583, PM585, DCS in general > Communication > Modbus

0

answers

0

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41

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CP600 Panel builder

Asked 7 months ago by Amal Rank: 88

DCS in general > Communication > Modbus > Modbus TCP, PLC Automation > Engineering > Automation Builder > Panel Builder 600, PLC Automation > AC500-eCo > Processor modules > PM554, PM555, PM556

0

answers

0

votes

76

views

Modbus TCP to OPC

Commented 7 months ago by Amal Rank: 88

DCS in general > Communication > Modbus > Modbus TCP, Safety Systems > _Other

1

answer

0

votes

92

views

modbus TCP/IP

Answered 7 months ago by mahendra.g-patgar Rank: 227

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

0

answers

0

votes

42

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AC500 Modbus RTU bug with Coriolis FCB450

Asked 7 months ago by antonis.asimakopoulos Rank: 4286

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

0

answers

0

votes

30

views

modscan same issue sm500/rgv2000

Asked 8 months ago by rikiwijaya98 Rank: 1959

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

2

answers

0

votes

125

views

PM866 controller is going to fault mode

Commented 7 months ago by Rajeesh Mariyodan Rank: 40

800xA > AC 800M > CI86x modules > CI867 (Modbus TCP), DCS in general > Communication > Modbus > Modbus TCP, 800xA > AC 800M > Processor modules > PM861, PM864, PM866, 800xA > Applications

0

answers

0

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106

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Modbus TCP/IP

Commented 8 months ago by Amal Rank: 88

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

1

answer

0

votes

66

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Need array to hold data for Information Manager Calculations service

Commented 8 months ago by kamil.herman Rank: 23

800xA > Applications > Information management > Information Manager, DCS in general > Communication > Modbus > Modbus TCP

1

answer

0

votes

80

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Modbus Interface (CI534V02) got problem.

Answered 8 months ago by Jan-Erik Rask Rank: 80

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

2

answers

0

votes

75

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

Answered 8 months ago by Rob Lyon Rank: 2

DCS in general > Communication > Modbus > Modbus RTU

2

answers

1

votes

98

views

CI867 Data gets freezed

Answered 8 months ago by ParthibanT Rank: 43

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

1

answer

0

votes

29

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Freelance v9.2 modbus

Commented 9 months ago by Randi Rank: 1433

Freelance, DCS in general > Communication > Modbus

3

answers

0

votes

201

views

Register Addressing for Modbus TCP/IP while using Access Variables

Answered 9 months ago by Rajeesh Mariyodan Rank: 40

800xA > Engineering > _Other, Distribution Automation > _Other, DCS in general > Communication > Modbus > Modbus TCP

1

answer

0

votes

47

views

PM867 read modbus protocol data fail,can someone hlep me?

Commented 9 months ago by Rob Lyon Rank: 2

Safety Systems > AC 800M High Integrity > Control Builder Safe, DCS in general > Communication > Modbus

3

answers

2

votes

107

views

How to detect frozen values using MODBUS communication?

Commented 9 months ago by Rob Lyon Rank: 2

800xA > AC 800M > CI85x modules > CI856 (S100), DCS in general > Communication > Modbus

1

answer

0

votes

93

views

Problem with MODBUS RTU between AC800M and AC500

Commented 10 months ago by kstoilov AKS expert

Rank: 5

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

0

answers

0

votes

68

views

Modbus TCP Protocol

Asked 10 months ago by Amal Rank: 88

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

1

answer

0

votes

183

views

MODBUS tcp/ip communication

Commented 10 months ago by Amal Rank: 88

PLC Automation > Engineering > Automation Builder, DCS in general > Communication > Modbus > Modbus TCP

3

answers

1

votes

57

views

Energy Analyzer

Commented 10 months ago by Amal Rank: 88

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

0

answers

0

votes

118

views

modbus tcp\ip addressing

Asked 10 months ago by Amal Rank: 88

PLC Automation > Engineering > Automation Builder > Application solutions, DCS in general > Communication > Modbus

1

answer

0

votes

116

views

Can I acheive Modbus TCP/IP communication between PM585 and CI522 (Remote I/O) by using ETH_MOD_MASTER FB?

Commented 11 months ago by Dan Rank: 1639

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

2

answers

0

votes

34

views

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

Commented 12 months ago by kstoilov AKS expert

Rank: 5

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

1

answer

0

votes

67

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How Many parameter can be read through Modbus serial moduleCI853 from a single slave and in Total

Commented 1 year ago by himanshu Rank: 248

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

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