If some other method of synchronization is used, the pause in sending can be deactivated by
means of the parameter assignment interface.
Note
When XON/XOFF ow control is congured, the user data must not contain the congured XON
or XOFF characters. The default settings are DC1 = 11H for XON and DC3 = 13H for XOFF.
Send Operation
The gure below illustrates a send operation.
Send job arrived
Waiting for
send job
Sending user
data
The amount of data to
be sent is taken from
the LEN parameter of
the send job.
Job processed
Figure 2-4 Sequence of a send operation
Basic Principles of Serial Data Transmission
2.4 Data Transmission with the ASCII Driver
Point-to-point connection CP 440 Installation and Parameter Assignment
Equipment Manual, 03/2022, A5E00057742-AE 25
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