User manual

Module Configuration PTQ-104S Rev2 ♦ Quantum Platform
User Manual IEC 60870-5-104 Server for Quantum
Page 74 of 195 ProSoft Technology, Inc.
February 22, 2013
5.6.9 w (latest ack threshold)
1 to 20
This parameter must match that of the host unit and specifies the number of
messages the module will receive before sending an S-format sequence
acknowledge message when no I-format data is ready to send. It is
recommended to set this value to 2/3 the value of k.
5.6.10 Time DB Offset
-1 or 0 to 3994
This parameter sets the location in the database where the module’s current date
and time will be copied to.
Note: The following tables lists the 12-byte data area placed in the database if the Time DB Offset
parameter is set to a value other than -1:
Byte
Length
Range
Description
0 to 1
2
0 to 59,999
Seconds and milliseconds
2
1
0 to 59
Minutes
3
1
0 to 23
Hour
4
1
Reserved
5
1
1 to 31
Day of the Month
6
1
1 to 12
Month
7 to 8
2
0 to 65,535
Year (four digit format, for example 2005)
9
1
Reserved
10
1
0 or 1
Invalid Flag (0 = Valid, 1 = Invalid
11
1
Reserved
5.6.11 Error Offset
0 to 3980
-1 to disable
This parameter sets the location in the module’s internal database when the
status and error information for the server will be stored. Enter a valid database
address of 0 to 3980 to store the information, or enter -1 to disable.