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Tab PLC structure data

In this tab you determine the properties for the entire PLC card within a bus system. In addition you determine the assignment of the PLC card to a rack.

In the Properties (global) processing mode, you edit the properties of all representations of the function jointly; in this case, the tab shows the supplement "(Device)".

Overview of the main dialog elements:

Configuration project:

Enter the name of the configuration project for the PLC box here, or select an entry from the drop-down list. The list shows all values that you have previously entered for the same type of function at other places in the project.

Station ID:

Here you enter the station ID for the PLC box, or select an entry from the drop-down list. The list shows all values that you have previously entered for the same type of function at other places in the project.

Rack ID:

If the PLC box is a rack or a head station, enter the designation of this rack here.

Numerical values equal to or greater "0" are allowed for the PLC data exchange in the AutomationML format. The numbering of the racks starts in every station with the value "0" ("Main rack"), the numbering is completed without gaps and has to be unique within a station. Extension racks therefore have values greater "0".

Note:

A head station is identified by being a rack and either has the Bus coupler / head station check box or the CPU check box selected.

PLC card is placed on rack ID:

If the PLC card is mounted on a rack or attached to a head station, enter the designation of this rack here. If the PLC card is placed on a rack and is itself a rack, the Rack field has to be filled additionally.

Position (slot / module):

For a PLC card which is placed on a rack, attached to a head station or is placed on a head station, enter the item number of the slot / module here.


Properties group box

For PLC cards, among other properties, the following are available:

CPU:

Activate this check box when the PLC box represents a CPU.

PLC-specific settings:

Here the scheme for the PLC-specific settings is displayed that is assigned to the CPU. The "From settings" entry indicates that the scheme specified in the project settings is being used.

If the CPU check box is activated, this field can be edited and you can select a different existing scheme from the drop-down list.

CPU: Name:

Through the indexed property CPU: Name [1-128] you assign one or more CPUs to the PLC box. All PLC addresses with the same CPU specification belong in an assignment list. By entering different CPUs, multiple PLC controllers can be managed in one project. This way you can, for example, address inputs of the first CPU and outputs of a second CPU.

Bus coupler / head station:

Select this check box if the current function is a bus coupler.

For the PLC data exchange this check box is also used to identify a head station. In this case the Rack field for the concerned PLC card has to be filled.

Power supply:

Select this check box if the current function is a power supply.

Bus distribution device:

Activate this check box in order to identify the PLC box as a bus distribution device.

PLC card is placed on head station:

Activate this check box for PLC cards that are directly placed on the head station or integrated into it. You enter the corresponding position on the head station in the Position (slot / module) property.

For PLC cards that are adjoined next to the head station the check box remains deactivated. You enter the corresponding position next to the head station in the Position (slot / module) property.

Bus system:

Select the type of bus system from the drop-down list, for example "PROFIBUS", "Ethernet", "ASI", etc.

Physical network: Bus ID / item number:

Enter the bus ID of the PLC box in the connected bus system here.

Sort code (for position in rack):

The sort code determines the sequence of PLC cards on the rack. The PLC cards are normally sorted by the value of the Position (slot / module) property. Alternatively, the PLC cards can be sorted by using the sort code entered here. This is particularly useful if the rack contains PLC cards for which the same item numbers are entered in the Position (slot / module) property, or for which no item numbers have been entered. As soon as you modify the sequence of the PLC cards in the Edit rack dialog, the PLC cards receive a sort code and are sorted according to it.

See also