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ProfinetIO RT Device configuration

The RuntimeIn computer science, runtime (or run-time) describes the operation of a computer program, the duration of its execution, from beginning to termination (compare compile time). Within KAS, runtime also refers to the virtual machine that manage the program written in a computer language while it is running manages a mapping table which contains the Profinet IO Inputs and Outputs. An appropriate configuration tool is integrated in the KAS.

To start the configuration: 

1. Open the fieldbus configuration window.
2. Right click on the windows and choose Insert > Insert Network. The following window opens.

   

3. Select PROFINET IO device and click OK.

   The configuration is represented as a tree:

   • Profinet IO Configuration
     • Profinet IO device (*)
       • Group (*)
         • Variable (*)

     (*) These items can appear several times in the configuration (depending on the bus topology).

   The I/Os of the Profinet network must be connected to the variables via a Profinet IO device.

4. Start the declaration of a Profinet device by right clicking on the PROFINET IO device network and choosing Insert Master. The following window opens:

   

   These parameters can be changed:

   Parameter	Meaning
   Name	A device name can consists of labels and must follow these conventions: 1 or more labels, separated by [.] Total length is 1 to 240 Label length is 1 to 63 Labels consist of [a...z0...9-] Labels do not start with [-] Labels do not end with [-] The first label does not start with "port-xyz" or "port-xyz-abcde" with a,b,c,d,e, x, y, z = 0...9 Device names do not have the form n.n.n.n, n = 0...999 Labels do only start with 'xn-' if RFC 3490 is applied
   Adapter identification	Must be “tsec0”
   Maximum # of ARs	Maximum number of alarm retries (default 3).
   Initialize IOxS	On: Initialize IOxS with good status. Off: No initialization of IOxS.
   IO communication only from within cycle	On: Run IO communication from within VM-cycle Off: Run IO communication outside VM-cycle.
   Default station name	Name of the station.

5. Click on Configure Slots.

   

6. Select the modules in the upper list. With the buttons Insert and Append the modules are copied to the lower list.

   You can not configure each module. Only modules with some sub modules respectively with a sub module with parameter data can be configured. Mark the according module in the lower list and click the Configure button.

7. Click OK to close the Slot Configuration and click OK to close the device window.
8. Right click on the master and select Create Variables. This will automatically populate the variables and groups.
   
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   • Every Profinet variable is expanded to a set of Boolean variables in PLC"Programmable Logic Controller" A Programmable Logic Controller, PLC, or Programmable Controller is a digital computer used for automation of industrial processes, such as control of machinery on factory assembly lines. Used to synchronize the flow of inputs from (physical) sensors and events with the flow of outputs to actuators and events by default. A SINT slot, for example, will be mapped to eight PLC BOOL variables. Therefore, if you have many configured slots, many PLC variables will be produced. The PDMM or PCMM will be slowed by a large amount of PLC variables.

     To avoid this, you can right click on a slot in the Create variables dialog and select Pack bits. Doing so with a SINT slot, for example, will create one SINT variable in KAS instead of eight BOOL variables. This will help reduce the number of PLC variables and reduce the load on the PDMM or PCMM.

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   • The Pack bits action may be applied to all slots by right clicking on the root node in the Create variables dialog.

9. Mark the device and right click on it, then choose Insert Slave to add a group.

   

   These parameters can be changed:
   

   Parameter	Meaning
   Name	Name of the group
   Type (icon)	Icon used for the group

10. Now you can connect the variables with the I/Os. Right click on the group and choose Insert Symbol in order to append a variable to a device.

    

    These parameters can be changed:
    

    Parameter	Description
    Variable name	Variable name following the IEC"International Electrotechnical Commission" IEC is a not-for-profit, non-governmental international standards organization that prepares and publishes International Standards for all electrical, electronic and related technologies 61131-3 syntax.
    Area	Output, Output IOCS, Output IOPS, Input, Input IOCS, Input IOPS, device status.
    Format	32 bit float, Signed 16 bit integer, Signed 32 bit integer, Signed 8 bit integer, Single bit, Unsigned 16 bit integer, Unsigned 32 bit integer, Unsigned 8 bit integer.
    Slot	Slot Number
    Subslot	Subslot Number
    Offset	Offset
    Bit	Bit

    The offset of a variable is relative to a sub module. Thus also depending from a slot and subslot. The offset of the first variable of a sub module is always 0.

All settings can be changed in the grid too. The information show refers to the items below of the selected item in the configuration tree.

If KAS is connected to a target system and the system is running, the grid shows the real-time data of the variables.

The Profinet data size is limited to 500 bytes. To calculate the size, use the slot configuration view to count the number of bits per slot and convert to bytes. For example, 7 slots containing 16 outputs of 32 bits each, would be 7 * 16 * 32 = 3584 bits = 448 bytes.

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