Beckhoff EtherCAT EL6752 Documentation page 52

Parameterization and commissioning
Cycle time
Sets the cycle time of the IO connection polling and bit strobe. The value is used as "Expected Packet Rate"
attribute of the "Connection Object" according to the DeviceNet specification.
Electronic Key
Serves to check the devices within the network at the system StartUp. The electronic key is read from the
devices at every system StartUp and compared with the saved configuration.
Polled
Produced/Consumed
Activation of the "Polling" mode, cyclic writing and reading of IO data. Setting of the data content of the data
transmitted via the polled IO connections. You can choose from digital data, analog data or both. The
selection depends upon the BK52xx terminal arrangement.
Bit-Strobed
Produced/Consumed
Activation of the "Bit Strobe" operating mode. A broadcast message requests all nodes to send their bit
strobe message (up to 7 bytes input or status data). Setting of the data content of the data transmitted via
the bit-strobed IO connections. You can choose between digital data or diagnostic data.
Change of State / Cyclic
Produced/Consumed
Setting of the data content of the data transmitted via the change of state/cyclical IO connections. You can
choose from digital data, analog data or both. The selection depends upon the BK52xx terminal
arrangement.
Change of State / Cyclic
Selection of the required operating mode.
Heartbeat-Rate / Send-Rate
In the "Change of State" mode the heartbeat rate gives the cycle time of the cyclical send of the lower-level
(i.e. in addition to the event driven) IO data. In "Cyclic" mode the send rate specifies the cycle time with
which the IO data are sent.
Inhibit-Time
Delay time in "Change of State" mode; after a change of state IO data are sent after the specified time at the
earliest.
Acknowledge Timeout
Time before the retransmission in the event of faulty acknowledgement of a change of state / cyclical
message.
Acknowldege Retry Limit
Maximum number of retransmissions until IO connection goes into error mode.
K-Bus update
Calculates the expected time required for a full update of the terminal bus (depends on the connected
terminals).
Auto Device Replacement (ADR)
Not supported.
52 Version: 2.1 EL6752