Viola Systems Arctic IEC-104 User Manual page 40

Keep link open
Defines that the IEC-101 link is kept always open even when there is no active IEC-104
connection. If the functionality is enabled the Arctic sends link test frames and restarts the IEC-101
link if the test fails. The events are still not polled before the IEC-104 connection is active.
IEC-101 keep link open
Type
Units
Value range
Note
Reply header timeout
Defines the timeout Arctic waits the reply to start from IEC-101 slave after command or request.
IEC-101 reply start timeout
Type
Units
Value range
Note
Reply end timeout
Defines the maximum duration of IEC-101 slave response.
IEC-101 reply end timeout
Type
Units
Value range
Note
Retry limit
Defines the number of retries sent to a IEC-101 slave in case of no reply. If no reply is still received
the Arctic closes the IEC-101 and IEC-104 connections.
IEC-101 retry limit
Type
Units
Value range
Note
Arctic IEC-104 Gateway
Boolean
N/A
No, Yes
Some IEC-101 slaves require the link to be continuously
open in order to operate.
Timeout
Milliseconds
1-65000
Timeout
Seconds
1-65000
Retry limit
Retries
0-65000
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User's Manual
Viola Systems Ltd.