Post by micik on CAA File, how to check whether file exists or not ^{CODESYS Forge talk (Post)}
Hello, what would be the most efficient way to check whether the file exists or not. I don't want to use file.Open function, it seems like rather inefficiet operaton. I considered GetAttribute function, but this function doesn't accept filename (with path) as an input. Basically I need to check first time when program is loaded to the runtime i.e. when application is started for the first time, whether a file exists on the specific location or not.
Last updated: 2024-05-16

Post by trusty-squire on How to revert to previous version library ^{CODESYS Forge talk (Post)}
Turns out the issue was user error, no need to revert libraries.
Last updated: 2024-09-06

Post by thn-power on How to change OPC NodeId IdentifierType ^{CODESYS Forge talk (Post)}
Hi Yet another OPC UA question. When setting up a OPC server using "Communcation manager" (Symbol set and information model) in Codesys the NodeId is always given as "opaque" type. At least when browsing using UAExpert. Other standard OPC objects use numeric (or string) identifier, but for some reason my variables seems to get opaque/binary type. See attached photo. How can I change this? I can't see that this is a parameter in the CodesysControl.cfg. Can this be specified in the information model nodeset? And is it possible to specify the exact numeric or string NodeId for each instance? And on a related topic, is there a way to export the OPC server nodeId's with variable name so that it can be imported in a OPC Client? The .xml files in the project folder does not seem to contain the NodeId.
Last updated: 2024-09-20

Library download server and library update ^{CODESYS Forge talk (Thread)}
Library download server and library update
Last updated: 2021-09-14

Save library project as compiled library ^{CODESYS Forge talk (Thread)}
Save library project as compiled library
Last updated: 2017-08-01

Post by rd76065 on Opto 22 Groov PR2 Modbus TCP Master communication ^{CODESYS Forge talk (Post)}
Previously, I have used ModbusEthernet_04 library for Wago for ModbusTCP Master communicational in Codesys V2.3. How to use same communication of similar UDT for Opto22 Groov PR2 PLC in Codesys V3.5 SP20. Can I use OSCAT library - Network -MB_Client or IODrvModbusTCP - ModbusRequest for this requirement? If any other please guide.
Last updated: 2024-05-31

how to add module to raspberry pi ^{CODESYS Forge talk (Thread)}
how to add module to raspberry pi
Last updated: 2020-11-24

how to set custom from/to timestamp in Trend ^{CODESYS Forge talk (Thread)}
how to set custom from/to timestamp in Trend
Last updated: 2020-03-31

How to map to values in CAN BUS ^{CODESYS Forge talk (Thread)}
How to map to values in CAN BUS
Last updated: 2021-04-29

How to add a VFD to Codesys ^{CODESYS Forge talk (Thread)}
How to add a VFD to Codesys
Last updated: 2023-05-12

How to convert Function block diagram to Structured text ^{CODESYS Forge talk (Thread)}
How to convert Function block diagram to Structured text
Last updated: 2015-05-04

how to Connect CodeSys to many devices? ^{CODESYS Forge talk (Thread)}
how to Connect CodeSys to many devices?
Last updated: 2017-08-16

how to communicate codesys to other PLC ^{CODESYS Forge talk (Thread)}
how to communicate codesys to other PLC
Last updated: 2011-07-06

How to convert UDINT to array of bytes ? ^{CODESYS Forge talk (Thread)}
How to convert UDINT to array of bytes ?
Last updated: 2023-03-10

how to Connect CodeSys to many devices ? ^{CODESYS Forge talk (Thread)}
how to Connect CodeSys to many devices ?
Last updated: 2017-08-17

How to become a registered user and where to login? ^{CODESYS Forge talk (Thread)}
How to become a registered user and where to login?
Last updated: 2015-06-10

How to pass init values to nested function blocks? ^{CODESYS Forge talk (Thread)}
How to pass init values to nested function blocks?
Last updated: 2018-03-09

How to Convert ascii string to real value? ^{CODESYS Forge talk (Thread)}
How to Convert ascii string to real value?
Last updated: 2023-02-16

how to map a bit structure to %MX? ^{CODESYS Forge talk (Thread)}
how to map a bit structure to %MX?
Last updated: 2013-08-09

How to Convert ascii string to real value? ^{CODESYS Forge talk (Thread)}
How to Convert ascii string to real value?
Last updated: 2023-02-20

How to add a variable value to a Test Report? ^{CODESYS Forge talk (Thread)}
How to add a variable value to a Test Report?
Last updated: 2015-12-07

How to use codesys sp rte to simulate CANBUS ^{CODESYS Forge talk (Thread)}
How to use codesys sp rte to simulate CANBUS
Last updated: 2010-01-24

How to add supported fonts to target? ^{CODESYS Forge talk (Thread)}
How to add supported fonts to target?
Last updated: 2007-10-11

how to convert fuzzy logic to codesys code ^{CODESYS Forge talk (Thread)}
how to convert fuzzy logic to codesys code
Last updated: 2009-04-08

How to supress Codesys printing out to the console ^{CODESYS Forge talk (Thread)}
How to supress Codesys printing out to the console
Last updated: 2018-07-05

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