STRING_TO_DATE function exception ^{CODESYS Forge talk (Thread)}
STRING_TO_DATE function exception
Last updated: 2019-03-28

Ramp function ^{CODESYS Forge talk (Thread)}
Ramp function
Last updated: 2024-01-10

INT_TO_WORD function not working ^{CODESYS Forge talk (Thread)}
INT_TO_WORD function not working
Last updated: 2024-01-26

CAA Library Function ^{CODESYS Forge talk (Thread)}
CAA Library Function
Last updated: 2024-04-16

CFC Toggle Function ^{CODESYS Forge talk (Thread)}
CFC Toggle Function
Last updated: 2024-04-28

Exception with ReadNbrSlaves function ^{CODESYS Forge talk (Thread)}
Exception with ReadNbrSlaves function
Last updated: 2025-10-31

Post by simotion on Inheritance of axis ^{CODESYS Forge talk (Post)}
I have developped a function block 'Axis' the inherits from 'AXIS_REF_SM3' -> FUNCTION_BLOCK Axis EXTENDS AXIS_REF_SM3 In my global variable list I define a variable MasterDrive of type Axis and assign Axis1. Axis1 is a virtual drive (AXIS_REF_VIRTUAL_SM3). This type should inherit from AXIS_REF_VIRTUAL. VAR_GLOBAL MasterDrive : Axis := Axis1; However I get the error 'Cannot convert type'. What is the way to obtain what I want : function block inheriting AXIS_REF_SM3 and initialising this function block with a Softmotion virtual or real axis?
Last updated: 2023-12-07

Post by rh-pk on v3.5 SP19 - Modbus TCP Devices - Channel Limit? ^{CODESYS Forge talk (Post)}
Hello jacobwago, I believe that the limit is fixed in the editor, but not in the driver package. There seems to be no link between the driver setting and the editor. Otherwise, I don't know why the input (>10) is blocked, but the function is available. Unfortunately, I cannot offer you any other solution apart from the one mentioned above. Kind regards
Last updated: 2024-09-30

Post by gseidel on Limit Axis CNC Jerk using SMC_Polynomial_AbsMaxLocs ^{CODESYS Forge talk (Post)}
Dear josepmariarams, this (internal) function has been removed with SoftMotion 4.17.0.0. We do not have public functions to compute the extrema of a polynomial. On which polynomials exactly did you call SMC_Polynomial_AbsMaxLocs? (Maybe if I understand better how you limit the jerk I can come up with an alternative.) There is no functionality to limit the jerk of individual axes in the CNC. With SMC_LimitDynamics, you can limit the velocity and acceleration of cartesian (X/Y/Z) and additional (P/Q/U/V/W/A/B/C) axes, but not the jerk. And with a quadratic ramp type you can limit the jerk on the path. Best regards, Georg
Last updated: 2026-06-10

Post by tk096 on SMC_NCDecoder very slow to decode lines ^{CODESYS Forge talk (Post)}
Hi, you can call the decoder function block in a loop and/or decrease the task cycle interval of Task_PATH.
Last updated: 2024-08-23

Post by gatto on library ModbusTCP Slave 4.1.0.0 - function block ModbusServer ^{CODESYS Forge talk (Post)}
I've always liked codesys, but sometimes it drives me crazy
Last updated: 2024-11-28

Post by struccc on library ModbusTCP Slave 4.1.0.0 - function block ModbusServer ^{CODESYS Forge talk (Post)}
:) Yeah... Definitely not a "boring" platform, they are nice to give us work for the upcoming years... :)
Last updated: 2024-12-02

Post by maxsuelcunha on EtherCAT SM Drive configuration error ^{CODESYS Forge talk (Post)}
You can simply excute the function block SMC3_ReinitDrive to the referred axis.
Last updated: 2025-02-28

Post by felipemsgarcia on Axis EtherCAT address ^{CODESYS Forge talk (Post)}
Hello, Thank you for your answer. I'm afraid I was not clear on what I was trying to achieve. I'm trying to change parameters and command axes from inside a function block and the first thing that came to my mind was pass both the EtherCAT slave and axis to the function block (as image attached). But, I believe it's worse than just pass directly the EtherCAT slave address to the function block (is it???). However I was wondering if there was a way to get the EtherCAT address directly from the axis, so I don't need to pass the EtherCAT slave nor the EtherCAT address to the function block. Thank you again!
Last updated: 2025-03-07

Post by anlebr on Alarm group template - Is it not possible with several instances? ^{CODESYS Forge talk (Post)}
Hi In the POU section of my project I have created a Fan function block and defined an alarm group template for this FB with one alarm (Motor fault). In the PLC program I define two instances of the fan function block. When going to the alarm configuration and pressing "Create or update alarm instances", I get two alarms listed. So far so good. However, when I start my program and check the alarm table in the visualization I only see one alarm, even if both are active. Am I doing something wrong, or is it not possible to define alarms on a function block level and get one set of alarms per instance of the function block?
Last updated: 2025-04-01

Post by timvh on Sensor not set ^{CODESYS Forge talk (Post)}
Your function block instance is not called, so the code is not executed to set the light on when the button is pressed.
Last updated: 2024-05-27

Post by jbcregen on Accessing parameters from a structure or function block with the web interface ^{CODESYS Forge talk (Post)}
Confirmed. The Data Analyzer tool can indeed access all OPC-UA symbols. Thanks !
Last updated: 2025-12-02

Post by josepmariarams on Limit Axis CNC Jerk using SMC_Polynomial_AbsMaxLocs ^{CODESYS Forge talk (Post)}
Dears. Until now, I have been using CNC libraries with Codesys 3.5SP11. I was using SMC_Polynomial_AbsMaxLocs function, from CNC library, to calculate the axis jerks, interpolating splines, to limit it. Now I have passed to SP20, and the functions which calculates the zeros and the maximum-minimum and zeros of polynomials has been disapeared. Questions: -Exist any FB wich can limit the jerk of individual axis in CNC? -Exist any other functions which can calculate max-min and zeros of polynomials? Thanks
Last updated: 2026-05-22

Post by jarnok on How to know if output if function block is used ^{CODESYS Forge talk (Post)}
Hi, Is it possible to know of an output of a function block is used? I've found there is a way to find unused inputs of a fb, through the attribute: is_connected. But I'm wondering if the same can be done for an output. Thanks in advance!
Last updated: 2024-10-15

Post by pascaljt on Warning code C0373 ^{CODESYS Forge talk (Post)}
Hello, I wrote a function block for a controller but I have a warning code C0373 "expression or part of it has no effect" and the sub routine which contain my function block is underlined in blue. Despite, the FB works perfectly. Do you know why I have this warning ? Thanks. Pascal.
Last updated: 2024-10-30

Post by siscu on Raspberry Pi: List of available example applications ^{CODESYS Forge talk (Post)}
Could this be turned into a library? I'd love for a way to have the main program call a function block method using the program's I2C_master device. I assume I should be passing the master as a variable for the function block, but I don't see how that could be achieved
Last updated: 2024-05-15

Post by eschwellinger on v3.5 SP19 - Modbus TCP Devices - Channel Limit? ^{CODESYS Forge talk (Post)}
Guess you could just add two modbus slaves with the same ip, to enlarge the 10 channel limit.
Last updated: 2023-08-28

Post by mmpl on IIoT Library Payload Limit ^{CODESYS Forge talk (Post)}
Last updated: 2024-04-11

Post by smartcoco on Function block method default arguments ^{CODESYS Forge talk (Post)}
It's not that you missed something, it's that CODESYS doesn't have this feature. I hope CODESYS can add this feature. We also hope to add function overload functionality.
Last updated: 2023-12-22

Post by davelewis104 on J1939 SA ^{CODESYS Forge talk (Post)}
I am curious if there is a function block or function that will allow me to monitor the J1939 CANBus and pull out all of the SAs that are on a particular bus, without having to have them loaded in the J1939 manager?
Last updated: 2024-04-30

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