Message Duration
When the
Test by Message
mode is selected, the
Message Duration
field will set the
number of messages that will be sent. (Range: 100-1,000; Step: 100; Default: 100)
Repeat
This is the retest schedule interval:
None
,
Daily
,
Weekly
, or
Monthly
setting. (Default:
Daily)
Time Between Messages
This is the number of seconds between each message transmission. The first test message
is sent to each node sequentially. Then the second test message is sent to each node
sequentially, etc. (Range: 1-120; Step: 1; Default: 5)
Next Start Time
This field is blank until the first start time is entered. After the next test, the field updates
automatically to show the next time a test will start. The
Next Start Time
setting is
determined by the previous start time (entered manually or updated automatically from
the last test) and the configured
Repeat
interval setting. Users are not allowed to set a
date or time in the past.
Link Keep Alive Test Section
When a TCP or UDP connection remains idle it may shut down. A Link Keep Alive event
is not a test, but to keep all links active it periodically sends a single message to every
node. If more than one message is configured for the Scheduled Test, the Link Keep Alive
event only sends the first configured message. It also records statistics for the message
transmissions.
Frequency
This sets how often a
Link Keep Alive
test is run. (Range: 1-60 minutes; Step: 1 minute;
Default: 4 minutes)
Ping and Serial Link Test Section
A ping test is a manually sent Ethernet ping to a specific IP address. A serial link test is
a manually sent ping over a serial port to a specific DNP address.
Ping Test Timeout
If a ping test return takes longer than this configured value, the ping test event will timeout
and stop waiting for a response. Set this value in milliseconds. (Range: 500-5,000; Step:
500; Default: 5,000)
Serial Link Test Timeout
If a serial link test return takes longer than this configured value, the serial link test
event will timeout and stop waiting for a response. Set this value in milliseconds.
(Range: 500-30,000; Step: 500; Default: 5,000)
158 S&C Instruction Sheet 766-530
Communication Setup