A connection diagram represents the target information for each connection point of an object. In this context, a connection point is, for example, the terminal relative to the terminal strip, the pin relative to the plug, etc. Connection diagrams can be represented in a multi-level way, i.e., the targets are searched for in this case also across terminals and other further devices, such as switches.
For terminals / pins, the targets are determined on the basis of internal and external connection points. For other devices, the targets are determined on the basis of the Target tracking (PLC) to property. This property is defined in the connection point logic of the devices.
The target tracking in connection diagrams is canceled when a device is found again. Then, the device is no longer output. Thus, for example, in the case of terminal strips with several PE / PEN terminals that are not connected via a jumper, these PE / PEN terminals are not output several times.
Connection diagrams can have any number of steps. But placeholder texts exist only for steps 1 to 3. For all other steps, the placeholder texts of the first step are duplicated as many times as necessary.
Properties for connection-point diagram forms
There are a number of form properties for connection diagrams that you use to define the setup of the connection diagrams. The most important ones are listed here:
- Connection diagram: Number of steps, internal / Connection diagram: Number of steps, external (ID 13077 / ID 13079): For connection diagrams with variable steps, this specifies how many steps are planned for displaying internal / external targets. In addition, using the properties Connection diagram: Interval between steps, internal / Connection diagram: Interval between steps, external (ID 13078 / ID 13080), the distance between two steps for the display of internal / external targets can be specified. All levels are displayed with the same spacing.
- Connection diagram: Display all targets (ID 13084): If this property is enabled, all targets are output in the connection diagram up to the first step. For all other steps, only the first targets are output. In the connection diagram, the targets are placed in a row and are only entered when the connection points belong to the same device and are next to each other in the graphic. In case of several targets, the connection graphic is represented as an oblique line.
If the property is disabled, only the first target is always output.
If you want to display the targets not grouped but in table form, use the properties Connection diagram: Internal targets in table form / Connection diagram: External targets in table form (ID 13086 / ID 13087). - Connection diagram: Output only connected connection points (ID 13085): If this property is enabled, only the linked connection points in the graphic are represented in connection diagrams for the targets. This helps to save space in the connection diagrams. This property only relates to targets and does not affect the devices, cables, terminal strips, or plugs to be evaluated. These functions are also listed in the connection diagrams. Only the connected function connection points are output at the terminal strip, e.g. in a terminal connection diagram for a motor which is the target of a terminal strip.
- Connection diagram: Target tracking across all devices (ID 13117): If this property is enabled, the target tracking is continued in connection diagrams across any number of devices. For the search for further targets, use the Target tracking (PLC) to property in the connection point logic of the devices. In addition, the Connection diagram: Output only connected connection points (ID 13085) property is treated as activated.
The last external and internal target is in each case the first device found for which no connection points have been specified for the transfer in the Target tracking (PLC) to property.
If the property is disabled, the search for targets will be carried out only across terminals and pins. The search ends at "normal" devices. - Connection diagram: Output only connected connection points (ID 13121): This property is only availably for device connection diagrams. If it is activated, only the connected connection points of the reported device are displayed.
- Connection diagram: Output only connected connection points at targets (ID 13085): This property stands for device, terminal, cable as well as pin-connection diagrams. If it is activated, only the connected connection points of the displayed targets are output.
Report when the two properties Connection diagram: Output only connected connection points at targets (ID 13085) and Connection diagram: Output only connected connection points (ID 13121) are not activated:
Report result with activated property Connection diagram: Output only connected connection points at targets (ID 13085):
Report result with activated property Connection diagram: Output only connected connection points (ID 13121):
See also
Inserting Connection Forks and Cable Lines into Connection Diagrams