This functionality is only available for certain module packages.

You are here: Tutorial > SIMATIC Step 7 > Task 2 - Allocating addresses for the inputs and outputs > Defining parameter names for model variables

Defining parameter names for model variables

Model variables are required when creating the structure and the addresses. The names of the model variables for certain tasks are defined in EEC and parameters with the same names are created in the model. The values of these parameters influence the generation process.

The model variables are defined as follows:

  1. Select Model > Model Variables to open the model variables.
  2. Click on the I/O Generator area.

3. Define the following model variables:

Name Value Description
Bit Range ParameterName IO_BitRange The name of the parameter that specifies the bit range of the bus.
Incoming Bus Line Parameter Name IO_IncomingBus The name of the parameter that specifies the incoming bus of a controller device. Only the basic controller object has no incoming bus.
Input Block Size Parameter Name IO_InputBlockSize The name of the parameter that specifies the input block size of a control device.
Input Start Address Format Parameter Name IO_InputStartAddressFormat The name of the parameter that specifies the input start address format of a control device.
Input Start Address Parameter Name IO_InputStartAddress
Outgoing Bus Line Parameter Name IO_OutgoingBus The name of the parameter that specifies the outgoing bus of a control device.
Output Block Size Parameter Name IO_OutputBlockSize The name of the parameter that specifies the output block size of a control device.
Output Start Address Format Parameter Name IO_OutputStartAddressFormat The name of the parameter that specifies the output start address format of a control device.
Output Start Address Parameter Name IO_OutputStartAddress
Place Parameter Name IO_Place The name of the parameter that specifies the location of a control device.
Places Parameter Name IO_Places The name of the parameter that specifies the locations that are searched using the sensors/actuators connected to the control device.