Real-Werte mit PFC- Variable übertragen ? ^{CODESYS Forge talk (Thread)}
Real-Werte mit PFC- Variable übertragen ?
Last updated: 2007-06-12

Visulisation of a REAL variable ^{CODESYS Forge talk (Thread)}
Visulisation of a REAL variable
Last updated: 2020-02-17

Erase big Array of Real ^{CODESYS Forge talk (Thread)}
Erase big Array of Real
Last updated: 2019-10-02

Adding real NVRAM retain persistent memory ^{CODESYS Forge talk (Thread)}
Adding real NVRAM retain persistent memory
Last updated: 2015-09-23

Real in 2 Word wandeln ^{CODESYS Forge talk (Thread)}
Real in 2 Word wandeln
Last updated: 2019-06-05

Real-Wert in String konvertieren ^{CODESYS Forge talk (Thread)}
Real-Wert in String konvertieren
Last updated: 2007-06-11

Good improvement in linux Real Time. ^{CODESYS Forge talk (Thread)}
Good improvement in linux Real Time.
Last updated: 2022-11-07

Real Data Type Range limitation ^{CODESYS Forge talk (Thread)}
Real Data Type Range limitation
Last updated: 2010-03-26

Reading REAL values; PROFINET communication ^{CODESYS Forge talk (Thread)}
Reading REAL values; PROFINET communication
Last updated: 2019-04-24

Real-Zahl mit einer Kommastelle darstellen ^{CODESYS Forge talk (Thread)}
Real-Zahl mit einer Kommastelle darstellen
Last updated: 2010-11-21

Real activate with bool ^{CODESYS Forge talk (Thread)}
Real activate with bool
Last updated: 2011-12-02

Post by ndzied2 on Rounding error in simple addition ^{CODESYS Forge talk (Post)}
This is a consequence of how computers store floating point numbers. 0.1 cannot be exactly represented in a computer. This is not a CoDeSys thing. Here is a link to a converter to show you the exact value that is represented when you use a REAL data type (which is a 32 bit float). https://baseconvert.com/ieee-754-floating-point If you really need to keep track of 0.1 increments. use INT OR DINT and then add 1 each time and assume that there is one decimal place.
Last updated: 2024-05-24

Post by solidlogicguy on Little endian to Float from Modbus RTU ^{CODESYS Forge talk (Post)}
Just tried and returns the same value but in scientific notation.
Last updated: 2024-01-08

Post by paulg on Converting hex bytes to float ^{CODESYS Forge talk (Post)}
I'll be capturing a hex stream over serial into a RasPi and I'd like to convert a group of bytes into a float. I see this is available (https://content.helpme-codesys.com/en/CODESYS%20Development%20System/cdsoperatorrealto.html) but not its inverse (i.e. BYTE_TO_REAL). The packets will be 18 bytes but I'll be selecting 4 byte segments from the middle, swapping byte endianness (i.e. changing 0x51847641 to 0x41768451), and converting to float; I believe they adhere to IEEE 754. Is there a pre-built function for some or all of this, or do I need to follow (https://forge.codesys.com/forge/talk/Engineering/thread/dc5829c7ea/)? Thanks!
Last updated: 2024-08-02

Post by robert-o on Converting hex bytes to float ^{CODESYS Forge talk (Post)}
Try OSCAT_BASIC and Function DW_TO_REAL. DWORD_OF_BYTE my although help. The Lib is open and free. It is not necessary to add this Lib, you can use/copy the source code just to get an idea.
Last updated: 2024-08-05

Post by alexgooi on Modbus writing on value change ^{CODESYS Forge talk (Post)}
The way I usally tackle this is by syncing only words (then you are able to use the FB above). If you then want to write a Boolean simply type it like this. Value[1].0 := Bool1; Value[1].1 := Bool2; Value[1].2 := Bool3; Uints have the same number of bits than a INT/WORD so these ones will work as well (they are only represented diffrently). A Real will work but you will loose some infomration in the conversion. If you want to keep the information you can convert 2 words to a float with a function (for example with the IEEE-754 standard) . In this way the syncing to the server is very simple and in the Codesys Program you decide what part of the word you want to use.
Last updated: 2024-04-03

IO Mapping Analog Inputs with real values ^{CODESYS Forge talk (Thread)}
IO Mapping Analog Inputs with real values
Last updated: 2023-06-23

Am I crazy? A-B [REAL] give wrong result? ^{CODESYS Forge talk (Thread)}
Am I crazy? A-B [REAL] give wrong result?
Last updated: 2017-09-28

Formatting real data type into strings (not visualization) ^{CODESYS Forge talk (Thread)}
Formatting real data type into strings (not visualization)
Last updated: 2011-06-21

Conversion of analogue input into Real measurement value ^{CODESYS Forge talk (Thread)}
Conversion of analogue input into Real measurement value
Last updated: 2011-04-18

Real time codesys runtime on raspberry pi ^{CODESYS Forge talk (Thread)}
Real time codesys runtime on raspberry pi
Last updated: 2021-09-12

Problem with Real type in CoDeSys 2.3 ^{CODESYS Forge talk (Thread)}
Problem with Real type in CoDeSys 2.3
Last updated: 2010-06-25

Real- Wert zu 2 unterschiedlichen Zeitpunkten speichern ^{CODESYS Forge talk (Thread)}
Real- Wert zu 2 unterschiedlichen Zeitpunkten speichern
Last updated: 2023-06-30

Fehler 4010: "Kann REAL nicht in DWORD konvertieren" ?????? ^{CODESYS Forge talk (Thread)}
Fehler 4010: "Kann REAL nicht in DWORD konvertieren" ??????
Last updated: 2012-03-01

darfs ein bischen mehr sein bei REAL ? ^{CODESYS Forge talk (Thread)}
darfs ein bischen mehr sein bei REAL ?
Last updated: 2006-12-22

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