In many cases, one wishes to check the reaction of a device to a telegram addressed to it.
In other words, an IN telegram is followed by one or more OUT telegrams. The timing, in which these OUT telegram are sent by the Bus Device under Test may not always be exact, e.g. it could be after 0,2 sec but could also be 0,3 sec. So, in many cases, it may be wise to decide that one or more OUT telegrams should be received within a certain global time span.
For this EITT offers to build telegram blocks, i.e. the IN telegram and the subsequent OUT telegrams are made into one block, whereby the EITT automatically takes into account per OUT telegram a time to next telegram as set via the PC Options menu item.
Example: one IN telegram simulating an all off command is followed by 5 OUT telegrams simulating a device, whereby 5 channels send their feedback to this all off command.
After the execution of the "Build Telegram Block" menu item in the Edit menu, the IN telegram will be followed by 4 OUT telegrams where the time to next was set to 0 and a 5th telegram of which the time was set to = 5 * 0,2 sec = 1 sec. In other words, EITT will expect within 1 seconds after sending of the IN telegram 5 OUT telegrams. The block is visible by the blue bar to the left side of the telegrams.
The video that can be accessed here demonstrates this effect.
Note that the wait end time of the last telegram in the block is set to "no", meaning, should the 5 OUT telegrams be received faster than 1 second, EITT will proceed with sending or expecting the next telegram in the sequence.