Post by nulltrace on Modbus TCP Server connection is ESTABLISHED but all holding registers are value 0? ^{CODESYS Forge talk (Post)}
your case looks different, the first one was an codesys modbus tcp-slave, your's an Master-Application with gateway. I dont know this Unit, but i would say, from Point of Codesys it looks wrong configured. Just give us more detailed configuration and the please make a sketch of the topology you're trying to realise.
Last updated: 2026-04-08

Post by alexgooi on Network variable stops sending ^{CODESYS Forge talk (Post)}
Are you making use of structs in the NVL? In the past I had similar behavior (NVL stops sending) when I added something in the struct. if you are making use of structs makes sure that the structs are identical in both projects. If this is not the case, have you tried changing the port number to something different than 1202?
Last updated: 2026-04-29

Post by eschwellinger on Errors by Code Generate ^{CODESYS Forge talk (Post)}
yes no error in my case.
Last updated: 2024-02-17

Bypass of "onlineapp.login" ^{CODESYS Forge talk (Thread)}
Bypass of "onlineapp.login"
Last updated: 2014-08-22

Management of Unit Tests ^{CODESYS Forge talk (Thread)}
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Last updated: 2018-10-05

Example of CmpIecVarAccess ^{CODESYS Forge talk (Thread)}
Example of CmpIecVarAccess
Last updated: 2020-04-03

Cause of error message ^{CODESYS Forge talk (Thread)}
Cause of error message
Last updated: 2021-09-18

ARRAY of unknow struct ^{CODESYS Forge talk (Thread)}
ARRAY of unknow struct
Last updated: 2017-10-09

Initialization of POUs (FB_Init) ^{CODESYS Forge talk (Thread)}
Initialization of POUs (FB_Init)
Last updated: 2024-07-29

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Last updated: 2024-08-23

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Last updated: 2024-09-03

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Last updated: 2025-02-25

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Last updated: 2025-03-14

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Last updated: 2024-10-17

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Last updated: 2025-10-14

SAfe Shutdown of BBB ^{CODESYS Forge talk (Thread)}
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Last updated: 2017-08-07

ARRAY [*] OF in PLCopenXML ^{CODESYS Forge talk (Thread)}
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Last updated: 2018-10-26

Simulation of SysLibStr? ^{CODESYS Forge talk (Thread)}
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Last updated: 2012-09-04

Import of .gdc files ^{CODESYS Forge talk (Thread)}
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Last updated: 2018-12-25

Restoration of Codesys License ^{CODESYS Forge talk (Thread)}
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Last updated: 2023-08-09

Control of origins. ^{CODESYS Forge talk (Thread)}
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Last updated: 2018-07-30

List of compiler defines ^{CODESYS Forge talk (Thread)}
List of compiler defines
Last updated: 2019-03-13

Strange behavior of SMC_SetSoftwareLimist ^{CODESYS Forge talk (Thread)}
Strange behavior of SMC_SetSoftwareLimist
Last updated: 2022-04-06

Resetting of Sub-SFCs ^{CODESYS Forge talk (Thread)}
Resetting of Sub-SFCs
Last updated: 2017-06-07

Latest Version of SysLibSocket.lib ^{CODESYS Forge talk (Thread)}
Latest Version of SysLibSocket.lib
Last updated: 2012-05-04

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