Post by timvh on when going online, stuck on "Syncing file "visuelemsdatetime.tl_datetime.txt"
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I don't know the root cause... But what could help to continue when it seems to hang, is stop the CODESYS (communication) Gateway. Go to the Windows SysTray, find the icon for the Gateway and then stop it and start it again. This will interrupt the connection between CODESYS and your controller.
Last updated: 2024-03-05
Post by timvh on Automatic xExecute NBS.TCP_write
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Use e.g. the condition: TCP_Connection_0.xActive AND NOT(TCP_Write_0.xDone)
Last updated: 2024-03-05
when going online, stuck on "Syncing file "visuelemsdatetime.tl_datetime.txt"
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when going online, stuck on "Syncing file "visuelemsdatetime.tl_datetime.txt"
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Automatic xExecute NBS.TCP_write
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Automatic xExecute NBS.TCP_write
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Post by timvh on IFM CR711S Version Mismatch
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You should ask IFM to provide you with the correct version of their controller packages. Then after you have installed this, you can select the correct version of the controller by right clicking on it in the device tree, update device, enable the option "Display all versions" and then select the version which matches your controller. Alternatively you can ask IFM to provide an update package which can update the runtime version on your controller to 3.2.0.0.
Last updated: 2024-03-05
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WAGO 750-8212 nad Sinamics v20 modbus RTU speed control
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WAGO 750-8212 nad Sinamics v20 modbus RTU speed control
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Post by john-robinson on Limiting Memory Access of an Array to Within its Bounds
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Recently we had an issue regarding some simple code to calculate a rolling average. The code indexes from zero to 199 to properly store the current input into a circular buffer which then allows us to calculate a rolling average: VAR input_5s : REAL; outs_arr : ARRAY[0..199] OF REAL; i : USINT := 0; END_VAR ___ //this code runs every five seconds, calculating a rolling average outs_arr[i] := input_5s; i := i + 1; output := OSCAT_BASIC.ARRAY_AVG(ADR(outs_arr), SIZEOF(outs_arr)); IF i >= SIZEOF(outs_arr) THEN i := 0; END_IF There is a simple bug in this code where the index will be set to 0 when it has surpassed the length of the array in bytes (800 in this case) rather than larger than the number of reals in the array (200). The solution here is simple, replacing i >= SIZEOF(outs_arr) with i >= SIZEOF(outs_arr)/SIZEOF(outs_arr[0]). In this example when the index increased to 201 and the line outs_arr[201] := input_5s was called, codesys arbitrarily wrote to the address in memory that is where outs_arr[201] would be if the array was that long. I would like to find a way to wrap the codesys array inside of a wrapper class that checks if an input is within the bounds of an array before writing to that value. I know how I would implement that for a specific array, I could create a method or class that takes an input of an array of variable length, ie. ARRAY[*] OF REAL, but I don't know how to make this for any data type. I am wondering if anyone has ever done anything similar to this, or has any better suggestions to ensure that none of the programmers on this application accidentally create code that can arbitrarily write to other locations in memory.
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Post by tomast on WAGO 750-8212 nad Sinamics v20 modbus RTU speed control
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Hi Guys, I am new to this forum and i would like to ask od anyone got communication with Siemens v20 vfd working via Modbus RTU? I followed many websites and finally got the communication working but have problema with read/write registers. For example if i try to read holding register 40011 which is accel time i get noth but when i set the offset 0x0000 en length 113 i get ale the registers. I cannot get speed control working. I read someth about stw (control Word) and hsw but have some problems to understand it en get it working. It would be really nice if someone could help me with it. Thx
Last updated: 2024-03-05
Post by mandeepahujaifm on IFM CR711S Version Mismatch
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Please send an email to info.us@ifm.com and they shall provide you with the correct information. Alternatively you can check the website for latest packages. https://www.ifm.com/us/en/product/CR711S?tab=documents
Last updated: 2024-03-05
IFM CR711S Version Mismatch
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IFM CR711S Version Mismatch
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JSON Utilities - JSON file written with invalid structure
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Web Browser special tools errors
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