Modbus questions & answers - Control Systems Application and Knowledge Store

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modbus TCP/IP

Answered 2 days ago by mahendra.g-patgar Rank: 371

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

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32

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AC500 Modbus RTU bug with Coriolis FCB450

Asked 4 days ago by antonis.asimakopoulos Rank: 4657

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

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29

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modscan same issue sm500/rgv2000

Asked 11 days ago by rikiwijaya98 Rank: 3087

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

2

answers

0

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109

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PM866 controller is going to fault mode

Commented 2 days ago by Rajeesh Mariyodan Rank: 49

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

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74

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Modbus TCP/IP

Commented 16 days ago by Amal Rank: 270

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

1

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0

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61

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Need array to hold data for Information Manager Calculations service

Commented 24 days ago by kamil.herman Rank: 27

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

1

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0

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68

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Modbus Interface (CI534V02) got problem.

Answered 1 month ago by Jan-Erik Rask Rank: 91

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

2

answers

0

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63

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

Answered 1 month ago by Rob Lyon Rank: 2

DCS in general > Communication > Modbus > Modbus RTU

2

answers

1

votes

79

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CI867 Data gets freezed

Answered 1 month ago by ParthibanT Rank: 103

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

1

answer

0

votes

28

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Freelance v9.2 modbus

Commented 1 month ago by Randi Rank: 1332

Freelance, DCS in general > Communication > Modbus

3

answers

0

votes

102

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Register Addressing for Modbus TCP/IP while using Access Variables

Answered 1 month ago by Rajeesh Mariyodan Rank: 49

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

1

answer

0

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40

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

Commented 1 month ago by Rob Lyon Rank: 2

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

3

answers

2

votes

101

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How to detect frozen values using MODBUS communication?

Commented 1 month ago by Rob Lyon Rank: 2

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

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

0

answers

0

votes

59

views

Modbus TCP Protocol

Asked 2 months ago by Amal Rank: 270

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

1

answer

0

votes

107

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MODBUS tcp/ip communication

Commented 2 months ago by Amal Rank: 270

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

3

answers

1

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42

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Energy Analyzer

Commented 2 months ago by Amal Rank: 270

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

0

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0

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77

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modbus tcp\ip addressing

Asked 3 months ago by Amal Rank: 270

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

1

answer

0

votes

86

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

Commented 3 months ago by Dan Rank: 1523

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

2

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0

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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

1

answer

0

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55

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

Commented 4 months ago by himanshu Rank: 273

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

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answers

0

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41

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HOW TO READ ASCII VALUE IN PM583-ETH PLC THROUGH MODBUS TCP/IP protocol

Asked 4 months ago by WINTEX_ENGINEERS Rank: 562

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

2

answers

1

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48

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Modbus TCP Connection REM615 - Up[date Rate of Current Signal, address, 40140, 40139, 40138

Commented 4 months ago by gregory.richards Rank: 4275

PLC Automation > Supervisory software, DCS in general > Communication > Modbus > Modbus TCP

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: 1521

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

3

answers

0

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89

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Modbus TCP slave address 0

Answered 5 months ago by ParthibanT Rank: 103

DCS in general > Communication > Modbus > Modbus TCP

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

1

answer

0

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20

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Error when reading from RVG200 recorder via Modbus/TCP

Commented 6 months ago by mschori Rank: 5284

DCS in general > Communication > Modbus > Modbus TCP

1

answer

0

votes

79

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Modbus TCP problems in Freelance 2016

Commented 6 months ago by Dieter Henkel AKS expert

Rank: 10

Freelance > Engineering, DCS in general > Communication > Modbus > Modbus TCP

0

answers

0

votes

62

views

MODBUS TCP/IP between two PLC's AC500 V3, ETHx_MOD_MAST function block with code of error unknown (256)

Commented 6 months ago by ak Rank: 190

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

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: 5280

DCS in general > Communication > Modbus > Modbus RTU

1

answer

0

votes

135

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How to read INPUT REGISTER address of a modbus slave device through COM_MOD_MAST.

Answered 7 months ago by ak Rank: 190

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

0

answers

0

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65

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ModbusTCP MBConn Error Code -7004

Commented 7 months ago by michelle.lim Rank: 1097

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

1

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0

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101

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

Commented 8 months ago by anthony.valverde Rank: 1522

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

1

answer

0

votes

70

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ABB Videographic Recorder Not working with Modbus TCP/IP

Commented 11 months ago by jorge.garcia Rank: 5222

DCS in general > Communication > Modbus > Modbus TCP

2

answers

1

votes

82

views

ci867 Ethernet card with ethernet to rs 485 converter

Answered 1 year ago by hpg Rank: 82

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

2

answers

1

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17

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Transfer some reading via FI820F Card

Answered 1 year ago by Reda Rank: 145

Freelance, DCS in general > Communication > Modbus

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

1

answer

1

votes

132

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How to read 64bit data from modbus reciving 2 registers with dint ?

Commented 1 year ago by kamil.herman Rank: 27

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

3

answers

0

votes

316

views

read separate registers in modbus

Commented 1 year ago by Tomas Rank: 480

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

1

answer

0

votes

172

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Modbus TCP Connection Down -7001

Answered 1 year ago by Kornelo Rank: 476

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

1

answer

0

votes

48

views

Need configuration settings for Modbus in S+ Operations 2.0.4

Answered 1 year ago by frqahmed Rank: 295

DCS in general > Communication > Modbus > Modbus TCP, Symphony Plus

3

answers

0

votes

47

views

I need read 3 value from each slave from existing protocol

Answered 1 year ago by inammel Rank: 59

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

1

answer

0

votes

95

views

How to set up CI867 to third part device?

Answered 1 year ago by kstoilov AKS expert

Rank: 5

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

0

answers

0

votes

60

views

Socket programming(tcp/ip) in automation builder 2.0 ,ac-500,PM583

Asked 1 year ago by nynarkumar Rank: 944

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

1

answer

0

votes

41

views

Modbus communication between PLC and PIC32MX problem

Answered 1 year ago by Titus AKS expert

Rank: 6

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

1

answer

0

votes

28

views

Modbus issues after upgrade of Freelance (v8.1 -> 2016)

Answered 1 year ago by DanoGeorge Rank: 3198

Freelance, DCS in general > Communication > Modbus

5

answers

0

votes

390

views

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

Answered 1 year ago by Kevin.zhu Rank: 2760

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

105

views

AC500 Modbus Master Receiver to variable %MW0.X

Answered 1 year ago by kstoilov AKS expert

Rank: 5

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

1

answer

0

votes

73

views

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

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