[Info-vax] DCL "READ/TIME_OUT=n" from terminal; timer resets if message written to screen

[Volker Halle]

Scott,

this is expected and documented behaviour. It has nothing to do with DCL.

https://vmssoftware.com/docs/VSI_IO_REF.pdf 

Table 5.6. Read QIO Function Modifiers for the Terminal Driver

IO$M_TIMED ... 
If a read operation is interrupted by either a broadcast write or a synchronous write request, the timer operation is restarted.

Volker.