Viola Systems Arctic IEC-104 User Manual page 37

Link test interval (t3)
Defines the interval in seconds how often the IEC-104 link is tested if there is no other activity.
IEC-104 link test interval (t3)
Type
Units
Value range
Note
Suspended timeout
Defines the time in seconds how long a connected IEC-104 link can be in suspended state
(STOPD) before the Arctic closes the connection.
IEC-104 suspended timeout
Type
Units
Value range
Note
Max sequence number
The maximum sequence number used in IEC-104 communication. The value zero selects the
standard value 32767.
IEC-104 suspended timeout
Type
Units
Value range
Note
Arctic IEC-104 Gateway
Timeout
Seconds
1-65000
Adjust this parameter according to the criticality of the link.
The IEC-104 standard suggests 20 seconds but for pay-
per-use GPRS connections the practical value may be
substantially longer.
Timeout
Seconds
1-65000
Using this parameter increases the probability of detecting
partially closed network connections especially in UDP
mode.
Sequence number
Packets
1-32767
0 = 32767 as suggested by the IEC-104 standard.
37
User's Manual
Viola Systems Ltd.