Metrohm 857 Titrando - Manual (Page 19)

825 Lab Link, Instructions for Use 15
In networks with only a little traffic a successful ICMP only requires
a few milliseconds. With intensive network traffic this command
may take a little longer. However, we recommend that the timeout
setting is not made too high as its size directly influences the pe-
riodic status test, particularly if large numbers of 825 hardware
have been defined (but are switched off).
ICMP delay after transfer
As in the periodic status test, successful data transfer indicates a
functioning connection. In this case an additional ICMP does not
need to be set.
The time shown here indicates the off-time for an ICMP to the cor-
responding TCP/IP address after a successful transmission. A
larger off-time reduces network traffic, but increases the reaction
time of the Lab Link Server software to a change in status of an
825 hardware.
request timeout
A running request cannot be interrupted by the periodic status
test. If for any reason a request cannot been completed (e.g.
power cut affecting the Touch Control), then this connection re-
mains blocked from the point of view of the Lab Link server. When
this timeout period has elapsed the connection will be reset
automatically and initialized. In order to avoid unintended reset-
ting do not set this time too short.
failed ICMP before disconnect
If the periodic status test (ICMP) fails then an existing connection
will be interrupted (status “not available”). This parameter can be
used to determine the number of failed status tests in series nec-
essary for the actual termination of a connection. Once a connec-
tion has been interrupted it will be reactivated automatically at the
next status test at the earliest, or manually via the option Connec-
tion / Reconnect.