MODBUS RTU ^{CODESYS Forge talk (Thread)}
MODBUS RTU
Last updated: 2009-12-16

Modbus TCP ^{CODESYS Forge talk (Thread)}
Modbus TCP
Last updated: 2017-08-22

CODESYS Modbus Channels ^{CODESYS Forge talk (Thread)}
CODESYS Modbus Channels
Last updated: 2021-08-11

Alarmmanagement Modbus Zugriff ^{CODESYS Forge talk (Thread)}
Alarmmanagement Modbus Zugriff
Last updated: 2011-08-08

Modbus FC6 ^{CODESYS Forge talk (Thread)}
Modbus FC6
Last updated: 2010-03-21

Modbus RTU RS485 ^{CODESYS Forge talk (Thread)}
Modbus RTU RS485
Last updated: 2020-03-07

Modbus Master Lizenz ^{CODESYS Forge talk (Thread)}
Modbus Master Lizenz
Last updated: 2018-01-21

Modbus RTU RS485 ^{CODESYS Forge talk (Thread)}
Modbus RTU RS485
Last updated: 2014-10-21

Modbus UDP ^{CODESYS Forge talk (Thread)}
Modbus UDP
Last updated: 2021-11-04

Modbus RTU - Dynamics channels ^{CODESYS Forge talk (Thread)}
Modbus RTU - Dynamics channels
Last updated: 2017-07-27

Problem with simulation Modbus ^{CODESYS Forge talk (Thread)}
Problem with simulation Modbus
Last updated: 2024-03-22

Modbus tcp - channel ^{CODESYS Forge talk (Thread)}
Modbus tcp - channel
Last updated: 2024-06-13

Modbus Lockup ^{CODESYS Forge talk (Thread)}
Modbus Lockup
Last updated: 2024-08-07

Modbus Lockup ^{CODESYS Forge talk (Thread)}
Modbus Lockup
Last updated: 2024-08-07

Modbus TCP Server ^{CODESYS Forge talk (Thread)}
Modbus TCP Server
Last updated: 2024-10-21

Modbus TCP Client ^{CODESYS Forge talk (Thread)}
Modbus TCP Client
Last updated: 2024-11-05

Post by dawidr on Best practices for querying multiple MODBUS devices ^{CODESYS Forge talk (Post)}
Hi! What are the best practices for querying multiple Modbus devices? Single PRG or maybe multiple PRG (so basically multiple thread) per each Modbus device. In my current implementation I'm using single PRG and I'm utilizing FbMbMasterMultiQuerySerial and WagoAppPlcModbus.FbDigitalTwinMbSlaveDevice in eCockpit with PFC200. I've the timer with 2 seconds delay there and it was working fine for single device. But now I have three Modbus devices and for two of them I need to run 2/3 queries to get data from all registers. I noticed that the delays for getting the data from the Modbus devices is much bigger right now.
Last updated: 2024-07-31

How to check license installed in the device or anything bought from codesys store? ^{CODESYS Forge talk (Thread)}
How to check license installed in the device or anything bought from codesys store?
Last updated: 2021-12-07

Setting gateway and device ip by script not possible when executed from cli ^{CODESYS Forge talk (Thread)}
Setting gateway and device ip by script not possible when executed from cli
Last updated: 2022-04-07

Can't connect to Device Raspberry Pi 4 from CODESYS IDE V3.5 SP19 ^{CODESYS Forge talk (Thread)}
Can't connect to Device Raspberry Pi 4 from CODESYS IDE V3.5 SP19
Last updated: 2024-04-26

Post by timvh on ernesto881124 ^{CODESYS Forge talk (Post)}
You will need a USB to RS485 converter to connect the PC to the Modbus RTU Slave Device. In Windows this converter will be recognized as Serial COM poort (e.g. COM2, or COM3, see the windows device manager to find this out). Select this port in your CODESYS application. On the PC you need to use the CODESYS Control Win (SoftPLC) to run your application. It will not work in simulation mode, because then the Modbus Communication will not be activated.
Last updated: 2023-09-14

Post by ofey on Device parameter - ‘ModbusTCP Configuration’ ^{CODESYS Forge talk (Post)}
Hi! Do anybody know how I can add and enable the parameter 'Default Modbus TCP slave' on a device? I am currently writing a program where the PLC shall be set up as a Modbus TCP client, but I dont know how to add parameters to devices in codesys. I'm pretty new to the codesys environment. The picture in the attachment is on a similar PLC project where I have not written the code. my goal is to add this parameter in another project.
Last updated: 2023-10-04

Post by mavitia on Application based license problem - Modbus TCP ^{CODESYS Forge talk (Post)}
I am running ubuntu on a raspberry pi, and installed an application based license Control Basic M on it, it runs a demo program fine, does not timeout etc. however, when I add a modbus TCP device, I start getting errors: <Entry severity="error" component="CmpApp" user="nobody" timestamp="12/18/2023 3:49:42 PM" infoId="24">Online change denied. Application Application is in exception state!</Entry> <Entry severity="error" component="CmpApp" user="nobody" timestamp="12/18/2023 3:49:42 PM" infoId="68">Download failed: Application=Application</Entry> <Entry severity="exception" component="CmpApp" user="nobody" timestamp="12/18/2023 3:49:41 PM" infoId="0">Application app=Application has invalid license metrics!</Entry> the modbus tcp slave runs, and the counter ticks up, however, when I call the variables on the %IX0.0 in my program, and try to upload the changes, I am getting the error messages which stop the program as far as I understand, the application based, M includes 2 fieldbus instances, but on the other side is fairly new, anything obvious I am missing out here?
Last updated: 2023-12-18

llcallback() iec exception caught cmpid=0x00000002, eventid=0x00010008 ^{CODESYS Forge talk (Thread)}
llcallback() iec exception caught cmpid=0x00000002, eventid=0x00010008
Last updated: 2023-09-24

exception after all code has been scanned ^{CODESYS Forge talk (Thread)}
exception after all code has been scanned
Last updated: 2020-02-13

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