The Settings window

Max parallel Requests

This setting specifies how many requests may be sent before waiting for the response of the peer device. Please note that some devices may not support a large number of parallel requests. If you are not sure, use the value 1 and watch for possible timeout messages in the error log window.

Read Cycle (ms)

This value specifies the read request interval in milliseconds.

Write Cycle (ms)

This value specifies the write interval in milliseconds.