ProSoft Technology PTQ-104S - Manual (Page 190)

Reference 48TPTQ-104S Rev 1 ♦ 47TQuantum Platform
12TUser Manual 46TIEC 60870-5-104 Server for Quantum
Parameter Default Value Remarks Selected Value
t
2
10 seconds Time-out for acknowledges in case of no data
messages (t
2
< t
1
)
t
3
20 seconds Time-out for sending test frames in case of a
long idle time
Maximum range of values for configurable time-outs: 1 to 255 seconds, accuracy
1 second. (t1,t2,and t3 only)
Maximum number of outstanding I format APDUs k and latest acknowledge
APDUs (w)
Parameter Default Value Remarks Selected Value
k 12 APDUs Maximum difference receive sequence number to
send state variable (Maximum value is 19)
w 8 APDUs Latest acknowledge after receiving w I format
APDUs
Maximum range of values k: 1 to 32767 (2 15 -1) APDUs, accuracy 1 APDU
Maximum range of values w: 1 to 32767 (2 15 -1) APDUs, accuracy 1 APDU
(Recommendation: w should not exceed two-thirds of k).
Port number
Parameter Value Remarks
Port number 2404 In all cases
RFC 2200 suite
RFC 2200 is an official Internet Standard which describes the state of
standardization of protocols used in the Internet as determined by the Internet
Architecture Board (IAB). It offers a broad spectrum of actual standards used in
the Internet. The suitable selection of documents from RFC 2200 defined in this
standard for given projects has to be chosen by the user of this standard.

Ethernet 802.3
 Serial X.21 interface

Other selection from RFC 2200:
Page 190 of 201 ProSoft Technology, Inc.
March 4, 2013