HP Data Entry and Forms Management System (VPLUS) Reference Manual (32209-90024)

686 AppendixM
Application Notes
Using the VPLUS Environment Control File (VENVCNTL)
6 (MPE V/E only) VPLUS extends terminal
status reads to ensure that input
termination character is accounted for.
DO NOT ACTIVATE this option unless
experiencing VPLUS ”terminal status
request failed” errors due to network
delays.
7 Diagnostic only.
8 VPLUS does not force 7009x terminals to
80 columns.
If 7009x terminal is configured for 132
columns, there is a possibility of data
corruption.
9 VTURNON and VTURNOFF do notreset
terminal function keys to default strings.
10 (MPE/iX) VPLUS inhibits dual
terminator; only the record separator
(instead of either the record separator or
the carriage return) will be recognized as
a record terminator.
It will be awkward for user to recover a
blockmode application after a power
failure. Also, applications will treat line
feeds as terminators, not as data.
11 VTURNON does not save 7009x terminal
function key configuration information.
12 VOPENTERM does not save and VCLOSETERM
does not restore 7009x terminal function
configuration information.
13 - 18 Reserved
19 Diagnostic only.
20 (MPE/iX only) VPLUS posts pending
terminal driver reconfigurations to
overcome timing windows and force
synchronization.
21 - 29 Reserved
30 VPLUS posts pending terminaldriver
reconfigurations to overcome timing
windows and force synchronization in a
multi-hop network environment.
There will be incremental file system
overhead associated with the posting
action; this overhead is only necessary if
difficulties are being experienced.
31 VOPENTERM and VIDTERM do not check
JOB/SESSION mode when doing terminal
open (available in soon to be released
VPLDV28 (MPE V/E) and VPLEXF7
(MPE/iX) patches).
If executing VPLUS in a job and no valid
file equation to the terminal exists, then
job $STDIN file may be corrupted.
32 - 80 Reserved
Byte Explanation Side Effects / Comments