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Internal error:System.NullReferenceException: The object reference was not set to an object instance.
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Internal error:System.NullReferenceException: The object reference was not set to an object instance.
Last updated: 2024-05-24
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Post by wiresplus on Display minutes as hours & minutes
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Hello, I have a counter that increments an INT value once per minute I want to display this value in Minutes until 60, then Hours/Minutes thereafter on the HMI Codesys V3.5 SP16 I can divide the minutes by 60 to get hours, but then the minutes is still more than 60. Example: a process has run for 350 Minutes. I need to display "5 Hours 50 Minutes" But if it's only been 45 Minutes, I don't want "0 Hours 45 Minutes" , just "45 Minutes"
Last updated: 2024-05-25
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Post by k2saki on Table How to set row number from 1 ( not from 0)
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In Codesys visu, Table row number always start from 0. How do I set row number from 1 ?
Last updated: 2024-05-25
Raspberry Pi Zero 2W with external Ethernet adapter
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Raspberry Pi Zero 2W with external Ethernet adapter
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Raspberry PI change tag only responds after stopping PLC
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Raspberry PI change tag only responds after stopping PLC
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Post by yofi on Raspberry PI change tag only responds after stopping PLC
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Using V19 Patch 7 and 4.11.0.0 for Pi 4 Model B, My problem is whenever I change a tag e.g bool from true to false it will change in software but the pin will only go high to low after pressing stop PLC in codesys and same if i want to bring it back to high, have to login start plc change it and stop plc in order to change. any insight ? thanks
Last updated: 2024-05-25
Post by svdpoint on Raspberry Pi Zero 2W with external Ethernet adapter
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Hello all, Somebody try to run the CodeSys at RPi Zero 2W with external ETHx device? I need to more information how youi do it, what need to it, ...etc. It is interesting to use it together with EtherCat-interface. For example I had try to connect W5500 over SPI. The eth0 is present, but does not found any EtherCat IO-device. BR
Last updated: 2024-05-25
Post by yofi on Configuring an Encoder
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I have a raspberry pi trying to add encoder to it using that free encoder node. I simply dont understand where the encoder channel A/B suppoded to be mapped when i got to I/O mapping on encoder I get nothing to where to set the channels for the encoder or is there any blocks from a library or how is it that you use an encoder with Codesys it doesn't seem clear at all
Last updated: 2024-05-25
Configuring an Encoder
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Configuring an Encoder
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Post by dhumphries on Rounding error in simple addition
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Thanks for the response, as I've thought about this problem over the last month I began to suspect this was a problem with not being able to exactly represent .1 as a 32 bit binary number. I think I've found a work around by making the number an integer, then dividing it by 10 and storing that value as a floating point number. There is still an issue with the value not being exact somewhere in the 8th or 9th decimal place, but because I'm incrementing an integer value then dividing it, the error doesn't compound.
Last updated: 2024-05-25