Parameter Values (Range) Unit Step Default Description
dicate that interval
is not used
Exp Sesn key Chg
Cnt
2...10000000 1 4000 Expected session
key change count
Max Sesn key Stat
Cnt
1...255 1 5 Maximum session
key status count
Sec Stat Cnt Grp
1=Group 1
2=Group 2
3=Group 3
4=Group 4
4=Group 4 Secure statistics
counter group
Sec Stat Cnt IOA 1...65535 1 61000 Information object
address for secure
statistics counters
6.2.2 IEC 101-104 Secure statistics thresholds settings
Table 20: Non group settings
Parameter Values (Range) Unit Step Default Description
Unexpected Msgs 1...65535 1 3 Security statistics
threshold for unex-
pected messages
Auth failures 1...65535 1 5 Security statistics
threshold for au-
thorization failures
Authn failures 1...65535 1 5 Security statistics
threshold for au-
thentication fail-
ures
Reply timeouts 1...65535 1 3 Security statistics
threshold for reply
timeouts
Rekeys Authn fail-
ure
1...65535 1 3 Security statistics
threshold for re-
keys due to authen-
tication failure
Total Msgs Tx 1...65535 1 100 Security statistics
threshold for total
messages sent
Total Msgs Rx 1...65535 1 100 Security statistics
threshold for total
messages received
Total Crit Msgs Rx 1...65535 1 100 Security statistics
threshold for total
critical messages
received
Discarded Msgs 1...65535 1 10 Security statistics
threshold discar-
ded messages
Error Msgs Tx 1...65535 1 10 Security statistics
threshold error
messages sent
Error Msgs Rx 1...65535 1 10 Security statistics
threshold error
messages received
Successful Authn 1...65535 1 100 Security statistics
threshold for suc-
cessful authentica-
tions
Sesn key Chg 1...65535 1 10 Security statistics
threshold for ses-
sion key changes
Table continues on the next page
2NGA001859 A IEC 60870-5-104 parameters
REX615
IEC 60870-5-104 Communication Protocol Manual
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