EL6731 tab

EtherCAT
Terminal ID in the terminal network.

Search...
This is used to search all EL6731 channels; the required channel can be selected.

Station no.
Each Profibus device requires a unique station number - including the master.

Baud rate
Set the Profibus baud rate.

Bus parameters (DP)...:
The Bus parameters dialog is selected here.

Operation mode
In all three operation modes, the highest-priority task linked to the appropriate device will take control of the PROFIBUS cycle and is therefore synchronized with the DP cycle (see the Synchronization section). If this task is stopped or reaches a breakpoint, the EL6731 switches to CLEAR mode (slave outputs will assume 0 or safe values) (see the Error reactions section). All other tasks are served asynchronously via corresponding buffers. If one of these tasks is stopped or reaches a breakpoint, the System Manager will generally display a message saying that the watchdog of the appropriate asynchronous mapping has been activated, and the appropriate outputs are set to 0. For all operation modes, one polling rate per slave can be set (in the Features tab for the Box). The sequence of the slaves in the PROFIBUS cycle corresponds to the sequence in which they are located in the FC310x/EL6731 device tree. "DP" mode is used for standard DP operation; the operation modes "DP/MC (equidistant)" and "Equidistant (no GC)" are described in section PROFIBUS-MC.

Cycle time
Shows the cycle time of the corresponding task with the highest priority.

Expected DP cycle time
Shows the expected PROFIBUS cycle time.

DP cycles/task cycle [only FC310x]
This can be used to set several DP cycles in a task cycle, in order to obtain as many new inputs as possible (see section Slave prioritization/several DP cycles).

Timing DP cycle...
Shows the timing of the DP cycle; this is particularly advantageous when slave prioritization is used.

Startup/fault settings...

This is used to select the Fault settings dialog

Firmware
Shows the current firmware version of the EL6731.

Scan Devices...
This is used to scan the PROFIBUS. All devices that are found are added to the EL6731. In the case of Beckhoff boxes, the configuration is read precisely. In the case of external devices, the corresponding GSD file will be searched.

Check configuration... [only FC310x]
This is used to scan the PROFIBUS and compare it with the currently attached boxes; changes are displayed.