Recent content by HPC

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    timer excution in ST code in Mervis

    Thanks for the info.
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    timer excution in ST code in Mervis

    Hi, I have a question regarding the implementation of a timer in ST code in Mervis. I have written the below code to set B := 10 after 10s since A becomes bigger than 5 and stays bigger than 5. However, it does not work properly. It sometimes set B := 10 after more than 15s since A>5. I...
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    Saving Momentary Declared Integer Values

    Hi, I am running a function block in only one scan cycle in my Mervis main program. The output of this function block is a set of 8 int numbers. As I am running this FB only in one scan cycle, I am not able to use the outputs of FB in the main program because after the first scan cycle, the...
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    Buubblesorting in Mervis

    Hi, I have written the below code as a function block for sorting 8 integer numbers. The sorted numbers will be put in an array named H_S in ascending order. The order of each input number will be put in an array named Rank. For example R[0] is the order of input 1, R[1] is the order of input...
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    Putting a set of real numbers in an array

    This is for an actual project. Below is the code I've written in a function block for bubble sorting and it doesn't show compiling error. I have defined the array as a VAR not with TYPE ... END-TYPEstyle. FUNCTION_BLOCK BubbleSort (* EXTENDS //base type IMPLEMENTS //interface type list *)...
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    Putting a set of real numbers in an array

    I want to sort these analog values in ascending order.
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    Putting a set of real numbers in an array

    This is not working. I am having compilation errors.
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    Putting a set of real numbers in an array

    Thanks for your reply. I am using ComAp controllers as my PLC. I've already explored the link you sent but couldn't figure a way out of it. Note that these real numbers are not fixed numbers. They are variables coming form analog inputs.
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    Putting a set of real numbers in an array

    Hi, I am using Mervis for PLC programming in ST. How can I put a set of real numbers in an array? Then how can I use the elements of this array individually in my ST program?
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    CAN Protocol-Device Mode

    Hi, I am using a software for CAN communication between a Gateway and a controller where a parameter named "Device Mode" must be set as either "Sending" or "Receiving". In the software, a CAN channel is set up where the Gateway is defined as a controller and the other controller is defined as a...
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    Starting Element

    Thanks alot.
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    Starting Element

    Further explanation about the problem: The first entries of this modbus map are as below: 0 Zone : Coil Status OFFSET of 1 Parameters PLC Adress Modbus Adress Read/Write Remarks Current X0 0x0000 R High frequency pulse input High pressure protection of compressor X1 0x0001 R 0=...
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    Starting Element

    Hi , I have a modbus register map where in Zone 0, on top of modbus address column, it is written "Offset of 1". What does it mean? What will be the "starting element" in Mervis for reading the status of the coil at, for example, modbus register 0x4042?
    • HPC
    • Thread
    • Replies: 3
    • Forum: Modbus
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    Multibyte Length (Parser)

    Thanks for the clarification. Yes, I am using Mervis ID.
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    Multibyte Length (Parser)

    Hi, When reading from a coil, what should I put in the "Multibyte Length" which is shown under the "Modbus Data Point Parameters" in my software? Since I am reading a coil, the associated modbus address (0*4053 in this case) contains only one bit. So, I don't have a multibyte to read from! It...
    • HPC
    • Thread
    • Replies: 2
    • Forum: Modbus
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