Modbus questions & answers - Control Systems Application and Knowledge Store

11

answers

1

votes

12286

views

Slave device not responding, modbus RTU

Asked 6 years ago by PM860 Rank: 1047

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

2

answers

4

votes

4223

views

Termination resistor for modbus rtu

Commented 2 years ago by arunvt1992 Rank: 666

DCS in general > Communication > Modbus > Modbus RTU

3

answers

4

votes

6023

views

How can i transfer REAL numbers for example the value "5.32" through Modbus RTU ?

Commented 1 year ago by akhraszaid Rank: 200

DCS in general > Communication > Modbus

4

answers

3

votes

6054

views

checksum error, Modbus RTU

Asked 3 years ago by dannypat Rank: 1231

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

9

answers

1

votes

3627

views

MODBUS. Master not able to read slave response.

Commented 5 months ago by kstoilov AKS expert

Rank: 5

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

1

answer

0

votes

2413

views

modbus s7-1200 - to ACS580 inverter

Asked 5 years ago by Mnajgebaur Rank: 3156

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

1

answer

2

votes

2071

views

CI867 Modbus TCP Master Communication Error

Asked 3 years ago by Jagl77 Rank: 247

DCS in general > Communication > Modbus > Modbus TCP, 800xA > AC 800M > CI86x modules > CI867 (Modbus TCP), 800xA > System > System version > 800xA 6.0

5

answers

5

votes

1825

views

Modbus RTU over TCP

Asked 5 years ago by insen1 Rank: 994

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

1137

views

Configure Modbus Slave address in Codesys

Asked 3 years ago by jarrett Rank: 602

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

4

answers

2

votes

2644

views

modbus tcp slave not responding?

Asked 4 years ago by Aoo Rank: 2024

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

2

answers

4

votes

1661

views

Is it possible to have multimaster configuration in Modbus TCP/IP

Asked 5 years ago by gurwinder Rank: 1238

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

3

answers

3

votes

2947

views

Modbus pin configuration (Serial DB9 to RJ45)

Asked 5 years ago by mshahabahmad Rank: 821

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

1

answer

0

votes

2828

views

Connection REF615 and SCADA over MODBUS TCP/IP

Commented 1 year ago by heramirez Rank: 1732

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Communication > Modbus, Distribution Automation > Feeder protection & control > REF6xx series

1

answer

3

votes

791

views

ETH_MOD_MAST Limitations.

Answered 2 days ago by indigoninisparkle Rank: 6132

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

1

answer

1

votes

1330

views

CI867 as Modbus TCP slave

Asked 5 years ago by pauly25 Rank: 948

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

2

answers

0

votes

723

views

Using PLC connect for modbus TCP/IP

Asked 4 years ago by mayank roy Rank: 1290

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

2

answers

2

votes

1623

views

com mod mast

Answered 1 year ago by Amal Rank: 81

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

4

answers

2

votes

1713

views

Read/Write discrete Input/output using modbus tcp

Asked 4 years ago by Dannyf Rank: 3758

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Communication, 800xA > Engineering, PLC Automation > AC500 > CI modules > CI521, CI522 (Modbus TCP), PLC Automation > AC500

1

answer

1

votes

1290

views

PM564 COM1 Pin details for RS485 2 wire modbus connection

Asked 3 years ago by saurishkr Rank: 90

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

2

answers

3

votes

1168

views

Modbus TCP/IP or OPC connection

Asked 3 years ago by hrksa Rank: 127

2

answers

1

votes

40

views

Reviving misconfigured ACS310 after setting Modbus to RS232

Commented 29 days ago by alex_abb Rank: 6801

Drives > AC drives > ACS1xx, ACS200, ACS300, DCS in general > Communication > Modbus

2

answers

2

votes

831

views

start address for 40001

Asked 4 years ago by usman Rank: 745

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

5

answers

4

votes

4186

views

Modbus TCP/IP

Asked 6 years ago by Luka Rank: 526

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

1

answer

1

votes

1165

views

MODBUS communication Break

Asked 6 years ago by inripra Rank: 922

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Communication, DCS in general > Software > Configuration, 800xA > System > Administration & configuration > Configuration, Freelance > System > Administration & configuration > Configuration

2

answers

1

votes

1171

views

Modbus TCP slave (PLC) Is diconnecting due to watchdog timer?

Asked 4 years ago by Aoo Rank: 2024

DCS in general > Communication > Modbus > Modbus TCP

2

answers

2

votes

1502

views

32 bits dint to two 16bits dint

Asked 4 years ago by aerodriguez2010 Rank: 518

DCS in general > Communication > Modbus > Modbus TCP, DCS in general > Communication, 800xA > AC 800M, 800xA > Engineering > Control Builder M

2

answers

0

votes

1028

views

CI867, Modbus TCP

Commented 22 days ago by john.johnsson Rank: 2543

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

7

answers

1

votes

1227

views

CI867 Hardware Configuration

Asked 3 years ago by ertug Rank: 718

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

4

answers

2

votes

1026

views

CI867 - Modbus TCP error code -7006 (slave is a PC software)

Asked 3 years ago by quangbv.ctrl Rank: 1771

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

4

answers

4

votes

2624

views

How to configuring CI867 as a slave?

Asked 8 years ago by animesh.karfa@in.abb Rank: 2618

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

2

answers

7

votes

3536

views

CI853

Asked 7 years ago by SG Rank: 50

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

4

answers

1

votes

1706

views

how to configure com_mod_master to read a holding register?

Commented 10 months ago by Amal Rank: 81

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

3

answers

3

votes

541

views

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

Commented 2 years ago by ak Rank: 173

DCS in general > Communication > Modbus > Modbus RTU

3

answers

0

votes

1471

views

AC500 Modbus RTU Slave, adresses for input/output

Commented 2 years ago by kstoilov AKS expert

Rank: 5

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

1

answer

1

votes

1272

views

Regarding %MW address problem in AC500

Asked 5 years ago by rajshasthri Rank: 1228

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

1

answer

1

votes

31

views

Is EKIP IEC61850 port supports Modbus TCP/IP?

Answered 29 days ago by ParthibanT Rank: 42

LV Control Systems > _Other, DCS in general > Communication > Modbus > Modbus TCP

2

answers

2

votes

1220

views

converting IEEE-754 64-bit to integer

Asked 5 years ago by anders Rank: 571

DCS in general > Communication > Modbus, 800xA > AC 800M, 800xA > Engineering > Control Builder M

1

answer

4

votes

2550

views

Modbus TCP/IP in Bailey Infi90

Asked 7 years ago by Alimard Rank: 881

DCS in general > Communication > Modbus > Modbus TCP, Legacy DCS > Symphony Harmony INFI 90 > System, Symphony Plus > Operations > Display Library > Harmony, Symphony Plus

3

answers

1

votes

1163

views

PM861 COM3 port pin details for RS232 communication.

Asked 3 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)

4

answers

2

votes

1150

views

AC500 PLC to PLC communication

Asked 4 years ago by asad1837 Rank: 600

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

5

answers

0

votes

580

views

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

Answered 2 years ago by Kevin.zhu Rank: 3070

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

6

answers

7

votes

5232

views

How to declare AC800M CI867 as Modbus TCP Master?

Commented 2 years ago by mtoshiokan Rank: 2973

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

1

answer

0

votes

28

views

ACS880 modbus communication with CB 6.1

Answered 1 month ago by Neeraj Raushan Rank: 303

Drives > AC drives > _Other, DCS in general > Communication > Modbus

3

answers

0

votes

917

views

Addressing in PM564 eth for reading Integer values

Asked 3 years ago by saurishkr Rank: 90

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

2

answers

0

votes

716

views

Freelance Modbus TCP watchdog

Asked 5 years ago by jarrett Rank: 602

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

1

answer

1

votes

1544

views

CI867 Modbus TCP/IP slave

Asked 5 years ago by pauly25 Rank: 948

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

2

answers

8

votes

915

views

Can I connect MODBUS RS485 Device to AC800M COM3 Port?

Asked 3 years ago by irem Rank: 531

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

1

answer

0

votes

550

views

Modbus Communication with INVERTER ABB UNO 3.0-TL-OUTD-S

Commented 2 years ago by karan Rank: 8323

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

1

answer

0

votes

759

views

Communicate PM573-ETH PLC with PSTX Softstarter over Modbus RS485

Commented 2 years 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

359

views

How to do communicattion and configuration between AC500 and panel 800

Asked 3 years ago by chandhu Rank: 1562

AKS experts