Tab 'EtherCAT Slave - General'

Fields can be edited only when the auto-configuration mode of the EtherCAT master is deactivated.

Self-incrementing address (16-bit) that results from the position of the slave in the network. The address is used only during the system boot when the master assigns the EtherCAT addresses to its slaves. When the first message runs through the slaves for this purpose, each slave increments its AutoInc address by 1. The slave with address 0 then receives the data. A possible input here is "-8".

: Additional settings are possible for the startup checking and time monitoring (see below). The Expert Process Data tab is also available in the device editor.

However, expert settings are not required for standard applications. The auto-configuration mode is recommended and sufficient for standard applications.

List box with all settings for the distributed clocks of the device description file

: Synchronization unit Sync0 is used. A synchronization unit describes a set of process data that is exchanged synchronously.

: The master cycle time (multiplied by the factor selected from the list box) is used as the synchronization cycle time for the slave. Cycle time (µs) displays the cycle time currently set.

: Synchronization unit Sync1 is used. A synchronization unit describes a set of process data that is exchanged synchronously.

: The master cycle time (multiplied by the factor selected from the list box) is used as the synchronization cycle time for the slave. The Cycle time (µs) field displays the cycle time currently set.

This area section appears in online mode only.

By default the vendor ID and product ID of the device are checked against the current configuration settings when the system boots up. If they do not agree, then the bus is stopped and no further actions are executed. This is done to prevent an incorrect configuration from being loaded onto the bus system.

Options to deactivate the corresponding check.

: The revision number is checked during the system bootup according to your selection in the list box.

By default, watchdog is not defined for the following actions. If necessary, an appropriate timeout can be specified here (in milliseconds):

Transmits the SDO list at system start. Specified in milliseconds.

Switch from Init mode to Preoperational mode. Specified in milliseconds.

One or more options for the Distributed Clock function can be activated here that should be used on the local microprocessor. The check is performed in the registry at 0x980 in the EtherCAT slave. Possible settings:

The PDI watchdog and SM watchdog receive their impulses from the local terminal clock divided by the watchdog multiplier.

This watchdog triggers if there is no PDI communication with the EtherCAT slave controller for longer than the PDI (Process Data Interface) watchdog time that has been set and activated.

In this section, you set the device identification of the slave. In this way, you can make the address of the slave independent of its position in the bus.

The following options are visible only if the Expert settings option or Optional option is selected.

If you have identified the slave as Optional, then you have to assign a unique ID to it.

The identification of the slave is not checked.

Address that is stored in the EEPROM of the device.

You can change the value in the Scan Devices dialog or in online mode. For stock devices, you need to assign this number one time. This means you have to connect the device one time to an EtherCAT master and store the number.

Visible in online mode only for Configured station alias. Writes the defined address for Value to the EEPROM of the slave.

The device identification is hard set on the hardware (for example, by DIP switches). It is displayed in Actual address.

A 2-byte value for the identification is saved in the slave.

Expected value for the check. If the actual value does not correspond to this setting, then an error is issued.

Initial value from the device description. You can change this value in the Data word option.